US20080167206A1 - Low-friction sliding mechanism - Google Patents
Low-friction sliding mechanism Download PDFInfo
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- US20080167206A1 US20080167206A1 US11/955,949 US95594907A US2008167206A1 US 20080167206 A1 US20080167206 A1 US 20080167206A1 US 95594907 A US95594907 A US 95594907A US 2008167206 A1 US2008167206 A1 US 2008167206A1
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- 0 *P(*)(=S)S[Zn]SP(C)(C)=S Chemical compound *P(*)(=S)S[Zn]SP(C)(C)=S 0.000 description 1
- WMPDDLJKOIDQJJ-UHFFFAOYSA-N BP(C)I.C.C.C.C.CB(P)I.CB(P)I.O=C1CCC(=O)N1CCN1CCN12C(=O)CCC2=O.[H]NCCN1C(=O)CCC1=O Chemical compound BP(C)I.C.C.C.C.CB(P)I.CB(P)I.O=C1CCC(=O)N1CCN1CCN12C(=O)CCC2=O.[H]NCCN1C(=O)CCC1=O WMPDDLJKOIDQJJ-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
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- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/109—Lubricant compositions or properties, e.g. viscosity
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- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
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- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/028—Overbased salts thereof
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- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
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- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
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- F16C2204/00—Metallic materials; Alloys
- F16C2204/26—Alloys based on magnesium
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- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2206/00—Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents
- F16C2206/02—Carbon based material
- F16C2206/04—Diamond like carbon [DLC]
Abstract
A low-friction sliding mechanism includes first and second sliding members having respective sliding surfaces slidable relative to each other and a lubricant applied to the sliding surfaces of the first and second sliding members. At least the sliding surface of the first sliding member is made of a diamond-like carbon material, and at least the sliding surface of the second sliding member is made of either an aluminum-based alloy material, a magnesium-based alloy material or a diamond-like carbon material. The lubricant contains a base oil and at least one of an ashless fatty-ester friction modifier and an ashless aliphatic-amine friction modifier.
Description
- The present application is a continuation of U.S. application Ser. No. 11/123,016, filed May 6, 2005, which is a divisional of U.S. application Ser. No. 10/692,853, filed Oct. 27, 2003, which claims priority from Japanese Patent Application No. 2002-322322 filed on Nov. 6, 2002; Japanese Patent Application No. 2003-207056 filed on Aug. 11, 2003; and Japanese Patent Application No. 2003-208193 filed on Aug. 21, 2003 the entire contents of which are incorporated herein by reference.
- The present invention relates to a sliding mechanism having excellent low-friction characteristics, particularly of the kind for use in an internal combustion engine, a drive train or a hard disk drive.
- Global environmental problems such as global warming and ozone layer destruction are coming to the fore. As it is said that the global warming is significantly effected by CO2 emission, the reduction of CO2 emission, notably the setting of CO2 emission standards, has become a big concern to each country.
- One of challenges to reduce CO2 emission is to improve vehicle fuel efficiency that depends on the performance of engine sliding members and a lubricant applied thereto. There are the following approaches to improving vehicle fuel efficiency: (1) to provide higher abrasion resistance and a lower friction coefficient for the sliding members, which are generally made of steel materials in the earlier technology, even under extreme conditions of abrasion and friction; (2) to lower the viscosity of the lubricant, thereby reducing viscous resistance in hydrodynamic lubrication regions and agitation resistance in the engine; and (3) to mix a suitable friction modifier and other additives into the lubricant so as to reduce friction losses under the conditions of mixed lubrication and boundary lubrication.
- In view of the foregoing, many studies have been made on various friction modifiers including organomolybdenum compounds, such as molybdenum dithiocarbamate (MoDTC) and molybdenum dithiophosphate (MoDTP). As a result of the studies, it is found that the lubricant containing an organomolybdenum compound successfully produces a friction reducing effect on the steel sliding members in the early stages of use.
- Heretofore, the application of hard coating materials to the engine sliding members has been also examined so that the sliding members can attain high abrasion resistance and a low friction coefficient. Above all, a diamond-like carbon (DLC) material is known for its low-friction performance in the air and therefore expected to be useful as a coating material for the sliding members.
- However, the DLC material does not provide a low friction coefficient in the presence of a lubricant (as disclosed in Japan Tribology Congress 1999.5, Tokyo, Proceeding Page 11-12, KANO et. al.). Even when used in combination with the lubricant containing an organomolybdenum compound, the DLC material cannot provide a sufficiently low friction coefficient (as disclosed in World Tribology Congress 2001. 9, Vienna, Proceeding Page 342, KANO et. al.).
- It is therefore an object of the present invention to provide a sliding mechanism having stably excellent low-friction characteristics and high abrasion resistance so as to attain, when used in an automotive engine, more improvement in vehicle fuel efficiency than that attained by the earlier technology.
- According to an aspect of the present invention, there is provided a low-friction sliding mechanism, comprising: a first sliding member having a sliding surface, at least the sliding surface of the first sliding member being made of a diamond-like carbon material; a second sliding member having a sliding surface slidable relative to the sliding surface of the first sliding member, at least the sliding surface of the second sliding member being made of either one of an aluminum-based alloy material, a magnesium-based alloy material and a diamond-like carbon material; and a lubricant applied to the sliding surfaces of the first and second sliding members, the lubricant comprising at least one of an ashless fatty-ester friction modifier and an ashless aliphatic-amine friction modifier.
- The other objects and features of the invention will also become understood from the following description.
- FIGURE is a schematic illustration of an abrasion test unit.
- The present invention will be described below in detail. In the following description, all percentages (%) are by mass unless otherwise specified.
- A sliding mechanism according to an exemplary embodiment of the present invention includes a first sliding member having a sliding surface, a second sliding member having a sliding surface slidable relative to the sliding surface of the first sliding member, and a lubricant applied to the sliding surfaces of the first and second sliding members.
- The first sliding member has at least its sliding surface made of a diamond-like carbon (DLC) material, and generally includes a base made of e.g. an iron-based material, an aluminum-based alloy material or a resinous material and a coating of DLC material (hereinafter just referred to as a “DLC coating) applied to the base so as to define the sliding surface. The first sliding member may alternatively be formed in one piece of DLC material. Herein, the DLC material is defined as an amorphous form of carbon in which carbon exists in both sp2 and sp3 hybridizations so as to have a composite structure of graphite and diamond. Specific examples of the DLC material usable in the present invention include hydrogen-free amorphous carbon (a-C) that consists of carbon, hydrogen-containing amorphous carbon (a-C:H) and metal carbide (MeC) that contains a metal element of titanium (Ti) or Molybdenum (Mo). For a significant reduction in friction, hydrogen-free amorphous carbon (a-C) is preferably used.
- The second sliding member has at least its sliding surface made of either an aluminum-based alloy material, a magnesium-based alloy material or a DLC material.
- The aluminum-based material for the second sliding member is preferably a hypoeutectic or hypereutectic aluminum-based alloy containing 4 to 20% silicon (Si) and 1.0 to 5.0% copper (Cu). Specific examples of the aluminum-based alloy include AC2A, AC8A, ADC12 and ADC14 in compliance with JIS H5205.
- The magnesium-based alloy material for the sliding member is selected for the group consisting of magnesium-aluminum-zinc (Mg—Al—Zn) alloys, magnesium-aluminum-rare earth metal (Mg—Al-REM) alloys, magnesium-aluminum-calcium (Mg—Al—Ca) alloys, magnesium-zinc-aluminum-calcium (Mg—Zn—Al—Ca) alloys, magnesium-aluminum-calcium-rare earth metal (Mg—Al—Ca-REM) alloys, magnesium-aluminum-strontium (Mg—Al—Sr) alloys, magnesium-aluminum-silicon (Mg—Al—Si) alloys, magnesium-rare earth metal-zinc (Mg-REM-Zn) alloys, magnesium-silver-rare earth metal (Mg—Ag-REM) alloys, magnesium-yttrium-rare earth metal (Mg—Y-REM) alloys and combinations thereof. Specific examples of the magnesium-based alloy include AZ91, AE42, AX51, AXJ, ZAX85, AXE522, AJ52, AS21, QE22 and WE43 in compliance with ASTM.
- The DLC material usable for the second sliding member can be exemplified by hydrogen-free amorphous carbon (a-C) that consists of carbon, hydrogen-containing amorphous carbon (a-C:H) and metal carbide (MeC) that contains a metal element of titanium (Ti) or molybdenum (Mo), as in the case with the DLC material usable for the first sliding member. Among these DLC materials, hydrogen-free amorphous carbon (a-C) is preferably used. In a case where at least the sliding surface of the second sliding member is of DLC material, the second sliding member generally has a base made of e.g. an iron-based material, an aluminum-based alloy material or a resinous material and a coating of DLC material (hereinafter referred to as a “DLC coating”) applied to the base so as to define the sliding surface. Alternatively, the second sliding member may be formed in one piece of DLC material. Further, it is preferable that at least one of the DLC materials of the first and second sliding members is hydrogen-free amorphous carbon (a-C).
- Each of the sliding surfaces of the first and second sliding members preferably has an arithmetic mean roughness Ra of 0.1 μm or lower so as to attain a stable sliding between the first and second sliding members. When the surface roughness Ra exceeds 0.1 μm, the sliding surfaces of the first and second sliding members are locally subjected to scuffing to cause a great deterioration in friction coefficient.
- Further, the DLC coating of the first sliding member preferably has a thickness of 0.3 to 2.0 μm and a micro Vickers hardness HV of 1000 to 3500 as measured by the application of a 10 g load. When the thickness is less than 0.3 μm and the micro Vickers hardness HV is less than 1000, the DLC coating is prone to wear. On the other hand, the DLC coating tends to be separated from the base when the thickness exceeds 2.0 μm and the micro Vickers hardness exceeds 3500.
- The sliding surface of the second sliding member, when the second sliding member is made of the above aluminum-based alloy material, preferably has a Brinell hardness HB of 80 to 130. If the Brinell hardness HB is less than 80, the sliding surface of the second sliding surface is prone to wear.
- The sliding surface of the second sliding member, when the second sliding member is made of the above magnesium-based alloy material, preferably has a Brinell hardness HB of 45 to 95. If the Brinell hardness HB is less than 45, the sliding surface of the second sliding surface is also prone to wear.
- When the sliding surface of the second sliding member is made of the above DLC material, the DLC coating of the second sliding member preferably has a thickness of 0.3 to 2.0 μm and a micro Vickers hardness HV of 1000 to 3500 as measured by the application of a 10 g load. When the thickness is less than 0.3 μm and the micro Vickers hardness HV is less than 1000, the DLC coating is prone to wear. On the other hand, the DLC coating tends to be separated from the base when the thickness exceeds 2.0 μm and the micro Vickers hardness exceeds 3500.
- The lubricant includes a base oil and at least one of an ashless fatty-ester friction modifier and an ashless aliphatic-amine friction modifier.
- The base oil is not particularly limited and can be any base oil compound or compounds commonly used for a lubricant, such as a mineral oil or a synthetic oil.
- Specific examples of the mineral oil include oil compounds prepared by extracting a lubricant fraction from petroleum by atmospheric or reduced-pressure distillation, and then, purifying the obtained lubricant fraction by at least one of the following treatments: solvent deasphalting, solvent extraction, hydrocracking, solvent dewaxing, hydrotreating and wax isomerization. In the present invention, the mineral oil prepared through hydrocracking, hydrotreating and/or wax isomerization is preferably used.
- Specific examples of the synthetic oil include: alkylbenzenes, alkylnaphthalenes, polybutenes and hydrides thereof; poly-α-olefins, such as 1-octene oligomer and 1-decene oligomer, and hydrides thereof; diesters, such as ditridecyl glutarate, dioctyl adipate, diisodecyl adipate, ditridecyl adipate and dioctyl sebacate; polyol esters, such as trimethylolpropane caprylate, trimethylolpropane pelargonate, pentaerythritol-2-ethyl hexanoate and pentaerythritol pelargonate; and mixtures thereof. Among these synthetic oil compounds, preferred are poly-α-olefins, such as 1-octene oligomer and 1-decene oligomer and hydrides thereof.
- The above-mentioned mineral and synthetic oil compounds may be used alone, or in the form of a mixture of any two or more thereof with no limitation on the mixture ratio.
- The aromatic content of the base oil is not particularly restricted. Herein, the aromatic content is defined as the amount of aromatics fractions determined according to ASTM D2549 “Standard Test Method for Separation of Representative Aromatics and Nonaromatics Fractions of High-Boiling Oils by Elution Chromatography”. The aromatics fractions generally include alkylbenzenes, alkylnaphthalenes, anthracene, phenanthrene and alkylates thereof, condensed-ring compounds having four or more benzeoid rings fused together, and heteroaromatic compounds such as pyridines, quinolines, phenols and naphthols. In the present invention, the aromatic content of the base oil is preferably 15% or less, more preferably 10% or less, and most preferably 8% or less. When the aromatic content exceeds 15%, the base oil undesirably deteriorates in oxidation stability. It is noted that the lubricant may be able to produce a high friction reducing effect, even if the aromatic content of the base oil is 2% or less (inclusive of 0%). In such a case, however, there arise a possibility that the lubricant deteriorates in storage stability, e.g., when the fatty-ester friction modifier and/or aliphatic-amine friction modifier is contained in an amount of more than 1%. The aromatic content of the base oil is thus preferably controlled to e.g. 2% or more by adding solvent refining mineral oil, alkylbenzene or the like as needed.
- The kinematic viscosity of the base oil is not particularly restricted. When the lubricant is used for an internal combustion engine, the kinematic viscosity of the base oil is preferably 2 mm2/s or higher, more preferably 3 mm2/s and, at the same time, is preferably 20 mm2/s or lower, more preferably 10 mm2/s or lower, most preferably 8 mm2/s or lower, as measured at 100° C. When the kinematic viscosity is 2 mm2/s or higher at 100° C., the lubricant is able to form a sufficient lubricant film so as to attain a high lubricity and is able to minimize its boil-off under high-pressure conditions. When the kinematic viscosity is 20 mm2/s or lower at 100° C., the lubricant is able to decrease its fluid resistance and minimize friction resistance in lubrication regions.
- The viscosity index of the base oil is not particularly restricted, and is preferably 80 or higher, more preferably 100 or higher, most preferably 120 or higher, when the lubricant is used for an internal combustion engine. When the base oil has a higher viscosity index, the lubricant can attain excellent low-temperature viscosity properties and produce a good friction reducing effect.
- The fatty-ester friction modifier and the aliphatic-amine friction modifier are an fatty acid ester and an aliphatic amine each having C6-C30 straight or branched hydrocarbon chains, preferably C8-C24 straight or branched hydrocarbon chains, more preferably C10-C20 straight or branched hydrocarbon chains. When the carbon number of the hydrocarbon chain is not within the range of 6 to 30, there arises a possibility that the lubricant may not produce a sufficient friction reducing effect as expected.
- Specific examples of the C6-C30 straight or branched hydrocarbon chain include: alkyl groups, such as hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, icosyl, heneicosyl, docosyl, tricosyl, tetracosyl, pentacosyl, hexacosyl, heptacosyl, octacosyl, nonacosyl and triacontyl; and alkenyl groups, such as hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl, dodecenyl, tridecenyl, tetradecenyl, pentadecenyl, hexadecenyl, heptadecenyl, octadecenyl, nonadecenyl, icosenyl, heneicosenyl, docosenyl, tricosenyl, tetracosenyl, pentacosenyl, hexacosenyl, heptacosenyl, octacosenyl, nonacosenyl and triacontenyl. The above alkyl and alkenyl groups include all possible isomers.
- The fatty acid ester can be exemplified by esters of fatty acids having the above hydrocarbon groups and monofunctional aliphatic alcohols or aliphatic polyols. Specific examples of such fatty acid esters include glycerol monolate, glycerol diolate, sorbitan monolate and sorbitan diolate.
- The aliphatic amine can be exemplified by aliphatic monoamines and alkylene oxide adducts thereof, aliphatic polyamines, imidazoline compounds, and derivatives thereof. Specific examples of such aliphatic amines include: aliphatic amine compounds, such as laurylamine, lauryldiethylamine, lauryldiethanolamine, dodecyldipropanolamine, palmitylamine, stearylamine, stearyltetraethylenepentamine, oleylamine, oleylpropylenediamine, oleyldiethanolamine and N-hydroxyethyloleylimidazolyne; adducts of the above aliphatic amines (C6-C28 alkyl or alkenyl amines) with alkylene oxides, such as N,N-dipolyoxyalkylene-N-alkylamines; and acid-modified compounds prepared by reacting the above aliphatic amines with C2-C30 monocarboxylic acids (such as fatty acids) or C2-C30 polycarboxylic acids (such as oxalic acid, phthalic acid, trimellitic acid and pyromellitic acid) so as to neutralize or amidate the whole or part of the remaining amino and/or imino groups. In the present invention, N,N-dipolyoxyethylene-N-oleylamine is preferably used.
- The amount of the fatty-ester friction modifier and/or the aliphatic-amine friction modifier added in the lubricant is not particularly restricted, and is preferably 0.05 to 3.0%, more preferably 0.1 to 2.0%, and most preferably 0.5 to 1.4%, based on the total mass of the lubricant. When the amount of the fatty-ester friction modifier and/or the aliphatic-amine friction modifier is less than 0.05%, there arises a possibility that the lubricant may not produce a sufficient friction reducing effect. When the amount of the fatty-ester friction modifier and/or the aliphatic-amine friction modifier exceeds 3.0%, the lubricant produce a good friction reducing effect but undesirably deteriorates in storage stability and compatibility to cause precipitations.
- Further, the lubricant desirably includes polybutenyl succinimide and/or a derivative thereof as an ashless dispersant. Specific examples of the polybutenyl succinimide usable in the present invention include compounds represented by the following general formulas (1) and (2).
- In each of the formulas (1) and (2), n represents an integer of 1 to 5, preferably 2 to 4, so as to attain a good detergent effect. Further, PIB represents a polybutenyl group derived from polybutene. The polybutene can be prepared by polymerizing high-purity isobutene or a mixture of 1-butene and isobutene in the presence of a boron fluoride catalyst or an aluminum chloride catalyst in such a manner that the polybutene attains a number-average molecular weight of 900 to 3,500, preferably 1,000 to 2,000. When the number-average molecular weight of the polybutene is less than 900, there is a possibility of failing to attain a sufficient detergent effect. When the number-average molecular weight of the polybutene exceeds 3,500, the polybutene may undesirably deteriorate in low-temperature fluidity. In the production of the polybutenyl succinimide, the polybutene may be used after purified by removing trace amounts of fluorine and chlorine residues, which result from the above polybutene production catalyst, by any suitable treatment (such as adsorption process or washing process). The amount of the fluorine and chlorine residues is preferably controlled to 50 ppm or less, more preferably 10 ppm or less, most preferably 1 ppm or less.
- The production method of the polybutenyl succinimide is not particularly restricted. For example, the polybutenyl succinimide can be prepared by reacting an chloride of the above-mentioned polybutene, or the polybutene from which fluorine and chlorine residues are removed, with maleic anhydride at 100 to 200° C. to form butenyl succinate, and then, reacting the thus-formed butenyl succinate with polyamine (such as diethylene triamine, triethylene tetramine, tetraethylene pentamine or pentaethylene hexamine).
- The polybutenyl succinimide derivative can be exemplified by boron- and acid-modified compounds obtained by reacting the polybutenyl succinimide of the formulas (1) and (2) with boron compounds or oxygen-containing organic compounds so as to neutralize or amidate the whole or part of the remaining amino and/or imide groups. In the present invention, boron-containing polybutenyl succinimide, especially boron-containing bis(polybutenyl)succinimide, is preferably used. Herein, the content ratio of nitrogen to boron (B/N) by mass in the boron-containing polybutenyl succinimide is usually 0.1 to 3, preferably 0.2 to 1.
- The above boron compound can be a boric acid, a borate or a boric acid ester. Specific examples of the boric acid include orthoboric acid, metaboric acid and paraboric acid. Specific examples of the borate include: ammonium salts including ammonium borates, such as ammonium metaborate, ammonium tetraborate, ammonium pentaborate and ammonium octaborate. Specific examples of the boric acid ester include: esters of boric acids and alkylalcohols (preferably C1-C6 alkylalcohols), such as monomethyl borate, dimethyl borate, trimethyl borate, monoethyl borate, diethyl borate, triethyl borate, monopropyl borate, dipropyl borate, tripropyl borate, monobutyl borate, dibutyl borate and tributyl borate.
- The above oxygen-containing organic compound can be exemplified by: C1-C30 monocarboxylic acids, such as formic acid, acetic acid, glycolic acid, propionic acid, lactic acid, butyric acid, valeric acid, caproic acid, enanthic acid, caprylic acid, pelargonic acid, capric acid, undecylic acid, lauric acid, tridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, margaric acid, stearic acid, oleic acid, nonadecanoic acid and eicosanoic acid; C2-C30 polycarboxylic acids, such as oxalic acid, phthalic acid, trimellitic acid and pyromellitic acid, and anhydrides and esters thereof; C2-C6 alkylene oxides; and hydroxy(poly)oxyalkylene carbonates.
- The amount of the polybutenyl succinimide and/or the derivative thereof added in the lubricant is not particularly restricted, and is preferably 0.1 to 15%, more preferably 1.0 to 12%, based on the total mass of the lubricant. When the amount of the polybutenyl succineimide and/or the derivative thereof is less than 0.1%, there arises a possibility of failing to attain a sufficient detergent effect. It becomes uneconomical when the amount of the polybutenyl succineimide and/or the derivative thereof exceeds 15%. In addition, such a large amount of the polybutenyl succineimide and/or the derivative thereof tends to cause a deterioration in demulsification ability.
- Furthermore, the lubricant desirably includes zinc dithiophosphate represented by the following general formula (3) as an antioxidant and as an anti-wear agent.
- In the general formula (3), R4, R5, R6 and R7 each represent C1-C24 hydrocarbon groups. The C1-C24 hydrocarbon group is preferably a C1-C24 straight-chain or branched-chain alkyl group, a C3-C24 straight-chain or branched-chain alkenyl group, a C5-C13 cycloalkyl or straight-chain or branched-chain alkylcycloalkyl group, a C6-C18 aryl or straight-chain or branched-chain alkylaryl group, or a C7-C19 arylalkyl group. The above alkyl group or alkenyl group can be primary, secondary or tertiary. Specific examples of R4, R5, R6 and R7 include: alkyl groups, such as methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, icosyl, heneicosyl, docosyl, tricosyl and tetracosyl; alkenyl groups, such as propenyl, isopropenyl, butenyl, butadienyl, pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl, dodecenyl, tridecenyl, tetradecenyl, pentadecenyl, hexadecenyl, heptadecenyl, octadecenyl (oleyl), nonadecenyl, icosenyl, heneicosenyl, docosenyl, tricosenyl and tetracosenyl; cycloalkyl groups, such as cyclopentyl, cyclohexyl and cycloheptyl; alkylcycloalkyl groups, such as methylcyclopentyl, dimethylcyclopentyl, ethylcyclopentyl, propylcyclopentyl, ethylmethylcyclopentyl, trimethylcyclopentyl, diethylcyclopentyl, ethyldimethylcyclopentyl, propylmethylcyclopentyl, propylethylcyclopentyl, di-propylcyclopentyl, propylethylmethylcyclopentyl, methylcyclohexyl, dimethylcyclohexyl, ethylcyclohexyl, propylcyclohexyl, ethylmethylcyclohexyl, trimethylcyclohexyl, diethylcyclohexyl, ethyldimethylcyclohexyl, propylmethylcyclohexyl, propylethylcyclohexyl, di-propylcyclohexyl, propylethylmethylcyclohexyl, methylcycloheptyl, dimethylcycloheptyl, ethylcycloheptyl, propylcycloheptyl, ethylmethylcycloheptyl, trimethylcycloheptyl, diethylcycloheptyl, ethyldimethylcycloheptyl, propylmethylcycloheptyl, propylethylcycloheptyl, di-propylcycloheptyl and propylethylmethylcycloheptyl; aryl groups, such as phenyl and naphthyl; alkylaryl groups, such as tolyl, xylyl, ethylphenyl, propylphenyl, ethylmethylphenyl, trimethylphenyl, butylphenyl, propylmethylphenyl, diethylphenyl, ethyldimethylphenyl, tetramethylphenyl, pentylphenyl, hexylphenyl, heptylphenyl, octylphenyl, nonylphenyl, decylphenyl, undecylphenyl and dodecylphenyl; and arylalkyl groups, such as benzyl, methylbenzyl, dimethylbenzyl, phenethyl, methylphenethyl and dimethylphenethyl. The above hydrocarbon groups include all possible isomers.
- Specific examples of the zinc dithiophosphate usable in the present invention include zinc diisopropyldithiophosphate, zinc diisobutyldithiophosphate, zinc di-sec-butyldithiophosphate, zinc di-sec-pentyldithiophosphate, zinc di-n-hexyldithiophosphate, zinc di-sec-hexyldithiophosphate, zinc di-octyldithiophosphate, zinc di-2-ethylhexyldithiophosphate, zinc di-n-decyldithiophosphate, zinc di-n-dodecyldithiophosphate, zinc diisotridecyldithiophosphate and mixtures thereof.
- The amount of the zinc dithiophosphate added in the lubricant is not particularly restricted. The zinc dithiophosphate is preferably contained in an amount of 0.1% or less, more preferably in an amount of 0.06% or less, most preferably in a minimum effective amount, in terms of the phosphorus element based on the total mass of the lubricant in order to produce a higher friction reducing effect. When the amount of the zinc dithiophosphate exceeds 0.1%, there arises a possibility of inhibiting the effect of the ashless fatty-ester friction modifier and/or the ashless aliphatic-amine friction modifier.
- The zinc dithiophosphate can be prepared by any known method. For example, the zinc dithiophosphate may be prepared by reacting alcohols or phenols having the above R4, R5, R6 and R7 hydrocarbon groups with phosphorous pentasulfide to form dithiophosphoric acid, and then, neutralizing the thus-formed dithiophosphoric acid with zinc oxide. Herein, the molecular structure of zinc dithiophosphate differs according to the alcohols or phenols used as a raw material for the zinc dithiophosphate production.
- The lubricant may further include any other additive or additives, such as a metallic detergent, an antioxidant, a viscosity index improver, a friction modifier other than the above-mentioned fatty-ester friction modifier and/or the aliphatic-amine friction modifier, an ashless dispersant other than the above-mentioned polybutenyl succinimide and/or the derivative thereof, an anti-wear agent or extreme-pressure additive, a rust inhibitor, a nonionic surfactant, a demulsifier, a metal deactivator and/or an anti-foaming agent, when used in an internal combustion engine. These additives may be used alone or in the form of a mixture of two or more thereof so as to meet the lubricant performance required.
- The metallic detergent can be any metallic-detergent compound commonly used for a lubricant. Specific examples of the metallic detergent usable in the present invention include sulfonates, phenates and salicylates of alkali metals or alkali-earth metals; and mixtures of two or more thereof. Examples of the alkali metals include sodium (Na) and potassium (K), and examples of the alkali-earth metals include calcium (Ca) and magnesium (Mg). In the present invention, sodium and calcium sulfonates, sodium and calcium phenates, and sodium and calcium salicylates are suitably used. The total base number and amount of the metallic detergent can be selected in accordance with the lubricant performance required. The total base number of the metallic detergent is usually 0 to 500 mgKOH/g, preferably 150 to 400 mgKOH/g, as measured by perchloric acid method according to ISO 3771 “Determination of base number—Perchloric acid potentiometric titration method”. The amount of the metallic detergent is usually 0.1 to 10% based on the total mass of the lubricant.
- The antioxidant can be any antioxidant compound commonly used for a lubricant. Specific examples of the antioxidant usable in the present invention include: phenolic antioxidants, such as 4,4′-methylenebis(2,6-di-tert-butylphenol) and octyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate; amino antioxidants, such as phenyl-α-naphthylamine, alkylphenyl-α-naphthylamine and alkyldiphenylamine; and mixtures of two or more thereof. The amount of the antioxidant is usually 0.01 to 5% based on the total mass of the lubricant.
- The viscosity index improver can be exemplified by: non-dispersion type viscosity index improvers, such as methacrylic acids, copolymers of methacrylic acids and hydrides thereof, and dispersion type viscosity index improvers, such as copolymers of methacrylates (including nitrogen compounds). There may be also used, as the viscosity index improver, copolymers of ethylene and α-olefins (such as propylene, 1-butene and 1-pentene) and hydrides thereof, polyisobutylenes and hydrides thereof, a hydrogenated copolymer of styrene and diene, a copolymer of styrene and maleic anhydride and polyalkylstyrenes. The molecular weight of the viscosity index improver needs to be selected in view of shear stability. For example, the number-average molecular weight of the viscosity index improver is desirably in a range of 5,000 to 1,000,000, more desirably 100,000 to 800,000, for dispersion or non-dispersion type polymethacrylates; in a range of 800 to 5,000 for polyisobutylenes and hydrides thereof; and in a range of 800 to 300,000, more desirably 10,000 to 200,000 for ethylene/α-olefin copolymers and hydrides thereof. The above viscosity index improving compounds can be used alone or in the form of a mixture of two or more thereof. The amount of the viscosity index improver is preferably 0.1 to 40.0% based on the total mass of the lubricant.
- The friction modifier other than the above-mentioned fatty-ester friction modifier and/or the aliphatic-amine friction modifier can be exemplified by ashless friction modifiers, such as boric acid esters, higher alcohols and aliphatic ethers, and metallic friction modifiers, such as molybdenum dithiophosphate, molybdenum dithiocarbamate and molybdenum disulfide.
- The ashless dispersant other than the above-mentioned polybutenyl succinimide and/or the derivative thereof can be exemplified by polybutenylbenzylamines and polybutenylamines each having polybutenyl groups of number-average molecular weight of 900 to 3,500, polybutenyl succinimides having polybutenyl groups of number-average molecular weight of less than 900 and derivatives thereof.
- The anti-friction agent or extreme-pressure additive can be exemplified by disulfides, sulfurized fats and oils, olefin sulfides, phosphate esters having one to three C2-C20 hydrocarbon groups, thiophosphate esters, phosphite esters, thiophosphite esters and amine salts of these esters.
- The rust inhibitor can be exemplified by alkylbenzene sulfonates, dinonylnaphthalene sulfonates, esters of alkenylsuccinic acids and esters of polyalcohols.
- The nonionic surfactant and the demulsifier can be exemplified by noionic polyalkylene glycol surfactants, such as polyoxyethylene alkylethers, polyoxyethylene alkylphenyleters and polyoxyethylene alkylnaphthyleters.
- The metal deactivator can be exemplified by imidazoline compounds, pyrimidine derivatives, thiazole and benzotriazole.
- The anti-foaming agent can be exemplified by silicones, fluorosilicones and fluoroalkylethers.
- Each of the friction modifier other than the fatty-ester friction modifier and/or the aliphatic-amine friction modifier, the ashless dispersant other than the polybutenyl succinimide and/or the derivative thereof, the anti-wear agent or extreme-pressure additive, the rust inhibitor and the demulsifier is usually contained in an amount of 0.01 to 5% based on the total mass of the lubricant, and the metal deactivator is contained in an amount of 0.0005 to 1% based on the total mass of the lubricant.
- With the above-described structure, the sliding mechanism is capable of attaining excellent low-friction characteristics and high abrasion resistance to be fit for a variety of uses, especially useful for an internal combustion engine, a hard disk drive and a drive train. The sliding mechanism can be also used as a sliding gear of an industrial machine.
- The present invention will be described in more detail by reference to the following examples. However, it should be noted that the following examples are only illustrative and not intended to limit the invention thereto.
- In Examples 1 to 27 and Comparative Examples 1 to 12, abrasion test units were assembled from varying combinations of pins, discs and lubricants. Each test unit had three pins and one disc as shown in FIGURE. The pins, discs and lubricants used were prepared as follows, and the detailed specifications of the test units are indicated in TABLES 1 to 3.
- A high-carbon chromium material “SUJ2” (i.e. an iron-based material in compliance with JIS G4805) was formed into pin bases by grinding and subjected to spheroidizing at 780° C., water quenching at 30° C. and tempering at 150° C. The heat-treated pin bases were lapped with lapping tapes in such a manner as to form their respective base surfaces with different surface roughness (Ra≦0.2 μm). Then, coatings were applied to the surfaces of the pin bases. The coatings were formed with different thickness by chemical vapor deposition (CVD) or physical vapor deposition (PVD) using the following coating material together with graphite targets.
- [Coating Materials]
-
- DLC: a-C (treated by PVD), a-C:H (treated by CVD)
- TiN (treated by PVD)
- CrN (treated by PVD)
Finally, the coatings were lapped with lapping tapes in such a manner as to form their sliding surfaces with different surface thickness (Ra≦0.1 μm). Each of the pins had a diameter of 5 mm and a length of 5 mm.
- Discs of aluminum-based alloys, such as AC2A, AC8A, ADC12 and ADC14, were heat-treated under the following conditions.
- [Heat Treatment]
-
- AC2A: subjected to age hardening at 510° C. for 8 hours, water quenching at 160° C. for 9 hours and air cooling.
- AC8A: subjected to age hardening at 200° C. for 4 hours and air cooling.
- ADC12, ADC14: no heat treatment.
Then, the aluminum-alloy discs were subjected to lapping to form their respective sliding surfaces with different surface roughness.
- Discs of magnesium-based alloys, such as AZ91D, AE42, AS21, AX51, AJ52, QE22-T6 and WE43-T6, were heat-treated under the following conditions.
- [Heat Treatment]
-
- QE22-T6: subjected to age hardening at 525° C. for 4 hours, water quenching at 200° C. for 8 hours and air cooling.
- WE43-T6: subjected to age hardening at 525° C. for 4 hours, water quenching at 250° C. for 16 hours and air cooling.
- AZ91D, AE42, AS21, AX51, AJ52: no heat treatment.
Then, the magnesium-alloy discs were subjected to lapping to form their respective sliding surfaces with different surface roughness.
- A high-carbon chromium material “SUJ2” (i.e. an iron-based material in compliance with JIS G4805) was formed into disc bases by grinding and subjected to spheroidizing at 780° C., water quenching at 30° C., and tempering at 150° C. The heat-treated disc bases were lapped in such a manner as to form their respective base surfaces with different surface roughness. Then, DLC coatings were applied to the surfaces of the disc bases. The DLC coatings were formed by chemical vapor deposition (CVD) or physical vapor deposition (PVD) using the following DLC coating material together with graphite targets.
- [Coating Materials]
-
- DLC: a-C (treated by PVD), a-C:H (treated by CVD)
The DLC coatings were lapped with lapping tapes in such a manner as to form their sliding surfaces with different surface roughness (Ra≦0.1 μm).
- DLC: a-C (treated by PVD), a-C:H (treated by CVD)
- Each of lubricants A to I was prepared by mixing a base oil with a friction modifier or modifiers, an ashless dispersant, zinc dialkyldithiophospate, a metallic detergent and other additives. The compositions and properties of the thus-prepared lubricants A to I are shown in TABLE 4. In TABLE 4, the amount of each oil compound is indicated based on the total mass of the base oil, and the amount of each additive is indicated based on the total mass of the lubricant.
- The test units of Examples 1 to 27 and Comparative Examples 1 to 12 were subjected to abrasion test under the following test conditions. The test results are shown in TABLES 1 to 3.
- [Test Condition]
-
- Maximum Hertz's pressure: 80 MPa
- Disc rotation speed: 30 rpm
- Lubrication method: Oil bath
- Lubricant temperature: 80° C.
- Test time: 60 minutes
-
TABLE 1 Pin Coating Disc Surface Surface Surface Surface Base Thickness roughness hardness roughness hardness Friction Material Material (μm) (μm) (Hv) Material (μm) (HB) Lubricant coefficient Example 1 SUJ2 a-C 1.1 0.03 1850 AC2A 0.05 80 A 0.055 Example 2 SUJ2 a-C 1.5 0.03 1850 AC8A 0.05 120 B 0.057 Example 3 SUJ2 a-C 1.4 0.03 1850 ADC12 0.05 110 C 0.061 Example 4 SUJ2 a-C 0.8 0.03 1850 ADC14 0.05 130 D 0.066 Example 5 SUJ2 a-C:H 0.7 0.02 1250 AC8A 0.04 120 A 0.083 Example 6 SUJ2 a-C 2.0 0.02 1000 AC2A 0.03 80 B 0.060 Example 7 SUJ2 a-C 1.1 0.03 1850 AC8A 0.10 120 E 0.068 Example 8 SUJ2 a-C 0.9 0.10 1850 AC8A 0.05 120 F 0.066 Example 9 SUJ2 a-C 0.3 0.04 3500 ADC14 0.05 130 G 0.070 Comparative SUJ2 none — 0.03 1850 AC2A 0.10 80 H 0.14 Example 1 Comparative SUJ2 none — 0.03 1850 AC8A 0.05 120 E 0.12 Example 2 Comparative SUJ2 a-C 1.2 0.03 1850 ADC14 0.05 130 I 0.10 Example 3 Comparative SUJ2 TiN 2.5 0.04 2300 AC2A 0.05 80 E 0.11 Example 4 Comparative SUJ2 CrN 2.6 0.03 1700 AC8A 0.05 120 E 0.11 Example 5 -
TABLE 2 Pin Coating Disc Surface Surface Surface Surface Base Thickness roughness hardness roughness hardness Friction Material Material (μm) (μm) (Hv) Material (μm) (HB) Lubricant coefficient Example 10 SUJ2 a-C 1.2 0.03 1850 AZ91D 0.04 65 A 0.056 Example 11 SUJ2 a-C 1.4 0.04 1850 AE42 0.06 60 B 0.049 Example 12 SUJ2 a-C 1.3 0.04 1850 AS21 0.05 55 C 0.062 Example 13 SUJ2 a-C 0.9 0.03 1850 AS21 0.04 55 D 0.069 Example 14 SUJ2 a-C:H 0.7 0.03 1250 AE42 0.05 60 A 0.086 Example 15 SUJ2 a-C 1.9 0.02 1000 AX51 0.05 57 B 0.058 Example 16 SUJ2 a-C 1.0 0.02 1850 AJ52 0.08 63 E 0.060 Example 17 SUJ2 a-C 0.8 0.09 1850 QE22-T6 0.06 65 F 0.071 Example 18 SUJ2 a-C 0.4 0.03 3500 WE43-T6 0.06 75 G 0.066 Comparative SUJ2 none — 0.04 750 AZ91D 0.10 65 H 0.13 Example 6 Comparative SUJ2 none — 0.03 750 AE42 0.04 60 E 0.12 Example 7 Comparative SUJ2 a-C 1.2 0.04 1850 AS21 0.04 55 I 0.096 Example 8 Comparative SUJ2 TiN 2.4 0.04 2300 AZ91D 0.06 65 E 0.11 Example 9 Comparative SUJ2 CrN 2.7 0.03 1700 AE42 0.05 60 E 0.10 Examole 10 -
TABLE 3 Pin Disc Coating Coating Surface Surface Surface Surface Base Thickness roughness hardness Base Thickness roughness hardness Friction Material Material (μm) (μm) (Hv) Material Material (μm) (μm) (Hv) Lubricant coefficient Example 19 SUJ2 a-C 1.1 0.03 1850 SUJ2 a-C 1.1 0.04 1800 A 0.031 Example 20 SUJ2 a-C 1.5 0.03 1850 SUJ2 a-C:H 1.1 0.03 1800 B 0.046 Example 21 SUJ2 a-C:H 1.4 0.03 1250 SUJ2 a-C 1.9 0.05 1550 C 0.045 Example 22 SUJ2 a-C 0.8 0.03 1850 SUJ2 a-C 0.8 0.05 1800 D 0.033 Example 23 SUJ2 a-C:H 1.8 0.02 1250 SUJ2 a-C:H 1.9 0.04 1200 A 0.060 Example 24 SUJ2 a-C 2.0 0.02 1000 SUJ2 a-C 2.0 0.03 1200 B 0.032 Example 25 SUJ2 a-C 1.1 0.03 1850 SUJ2 a-C 1.1 0.10 1800 E 0.037 Example 26 SUJ2 a-C 0.9 0.10 1850 SUJ2 a-C 0.8 0.05 1800 F 0.035 Example 27 SUJ2 a-C 0.3 0.04 3500 SUJ2 a-C 0.3 0.05 2500 G 0.041 Comparative SUJ2 none — 0.03 750 AC2A none — 0.10 80 H 0.140 Example 11 Comparative SUJ2 a-C 0.8 0.03 1850 SUJ2 a-C 0.8 0.05 1800 I 0.080 Example 12 -
TABLE 4 Lubricant A B C D E F G H I Base oil Mineral oil 1) mass % 100 100 — 100 100 100 100 100 100 Synthetic oil 2) mass % — — 100 — — — — — — Additives Fatty-ester friction modifier 3) mass % 1.0 1.0 1.0 — 1.0 1.0 0.2 — — Aliphatic-amine friction modifier 4) mass % — — — 1.0 — 03 — — — Organomolybdenum compound 5) mass % — — — — — — — — 1.1 Ashless dispersant 6) mass % 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 ZDTP 7) mass % — 0.047 0.047 0.047 0.094 0.094 0.047 0.094 0.094 (in terms of phosphorus element) Metallic detergent mass % 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 (in terms of metal element) Calcium sulfonate 8) mass % 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Calcium phenate 9) mass % 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 Others 10) mass % 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 Properties Kinematic viscosity at 100° C. mm2/s 10.3 10.2 10.0 10.2 10.3 10.3 10.3 10.3 10.2 Total base number mgKOH/g 6.2 6.2 6.2 6.2 6.5 6.5 6.5 6.5 7.5 according to perchloric acid method Total base number mgKOH/g 4.5 4.5 4.5 4.5 5.2 5.2 5.2 5.2 6.0 according to hydrochloric method [Remarks] 1) Hydrocracked mineral oil (kinematic viscosity at 100° C.: 5.0 mm2/s, viscosity index: 120, aromatic content: 5.5 mass %) 2) 1-Decene oligomer hydride (kinematic viscosity at 100° C.: 3.9 mm2/s, viscosity index: 124, aromatic content: 0.0 mass %) 3) Glycerol monolate 4) N,N-dipolyoxyethylene-N-oleylamine 5) Molybdenum dithiocarbamate (molybdenum content: 4.1 mass %) 6) Polybutenyl succinimide (nitrogen content: 1.2 mass %) 7) Zinc dialkyldithiophosphate (zinc content: 9.3 mass %, phosphrous content: 8.5 mass %, alkyl group: secondary butyl or hexyl group) 8) Calcium sulfonate (total base number: 300 mgKOH/g, calcium content: 12.0 mass %) 9) Calcium phenate (total base number: 255 mgKOH/g, calcium content: 9.2 mass %) 10) Including viscosity index improver, antioxidant, rust inhibitor, demulsifier, nonionic surfactanct, metal deactivator and anti-foaming agent - As seen in TABLES 1 to 3, the test units of Examples 1 to 27 showed more excellent low-friction characteristics and higher abrasion resistance than those of Comparative Examples 1 to 12.
- The test units of Examples 1 to 9 were comprised of the DLC-coated pins, the aluminum-alloy discs and any of the lubricants A to G containing at least one of the ashless fatty-ester friction modifier and/or the ashless aliphatic-amine friction modifier, respectively. In comparison to the test unit of Comparative Example 1, the friction coefficients of the test units of Examples 1 to 9 were reduced by about 40 to 60%. Similarly, the test units of Examples 10 to 18 were comprised of the DLC-coated pins, the magnesium-alloy discs and any of the lubricants A to G, respectively. The friction coefficients of the test units of Examples 10 to 18 were also reduced by about 40 to 60% in comparison to the test unit of Comparative Example 6. The test units of Examples 19 to 27 were comprised of the DLC-coated pins, the DLC-coated discs and any of the lubricants A to G, respectively. The friction coefficients of the test units of Examples 19 to 17 were reduced by about 50 to 70% in comparison to the test unit of Comparative Example 11. In addition, any deterioration in surface appearance was not seen in the sliding members of Examples 1 to 27 even after the abrasion test.
- Furthermore, the friction reducing effect became more pronounced as the amount of zinc dithiophosphate contained in the lubricant was decreased.
- Among the DLC coatings, the a-C coating on the sliding surface was more effective in reducing friction than the a-C:H coating. In the case of both the discs and the pins being DLC coated as shown in Examples 19 to 27, the combination of the a-C coatings on the sliding surfaces was more effective than the combination of the a-C coating and the a-C:H coating, and the combination of the a-C coating, and the a-C:H coating was more effective than the combination of the a-C:H coatings.
- On the other hand, the test unit of Comparative Example 1 was comprised of the pins with no DLC coatings, the aluminum-alloy disc and the lubricant H containing neither of the ashless fatty-ester and aliphatic amine friction modifiers. The test unit of Comparative Example 6 was comprised of the pins with no DLC coatings, the magnesium-alloy disc and the lubricant H. Further, the test unit of Comparative Examples 11 was assembled from the pins with no DLC coatings, the aluminum-alloy disc with no DLC coating and the lubricant H. The friction coefficients of the test units of Comparative Examples 1, 6 and 11 exceeded 0.1 to be much higher than those of Examples 1 to 27. The test units of Comparative Examples 2 and 7 were structurally similar to that of Comparative Examples 1 and 6, and had the pins with no DLC coatings, the SUJ2 discs with no DLC coatings and the lubricant E containing the ashless fatty-ester friction modifier, respectively. The friction coefficients of Comparative Examples 2 and 7 were slightly lower than those of Comparative Examples 1 and 6 but still exceeded 0.1. It is estimated that, in the test units of Comparative Examples 1, 2, 6, 7 and 11, reaction films were formed predominantly of zinc dithiophosphate (ZnDTP) on the sliding surfaces of the pins and discs to thereby cause increases in the friction coefficients. The test unit of Comparative Example 3 was comprised of the pins with the DLC coatings, the aluminum-alloy disc and the lubricant I. The test unit of Comparative Example 8 was comprised of the pins with the DLC coatings, the magnesium-alloy disc and the lubricant I. The test unit of Comparative Example 12 was comprised of the pins with the DLC coatings, the disc with the DLC coating and the lubricant I. In the lubricant I, the organomolybdenum compound was added in place of the ashless fatty-ester and/or aliphatic-amine friction modifier. The friction coefficients of the test units of Comparative Examples 3, 8 and 12 were thus nearly 0.1. It is thought that molybdenum disulfide films were not formed from the lubricant I in the test units of Comparative Examples 3, 8 and 12, thereby failing to obtain a sufficient friction reducing effect. The test units of Comparative Examples 4 and 9 had the pins with the TiN coatings, and the test units of Comparative Examples 5 and 10 had the pins with the CrN coatings. The friction coefficients of the test units of Comparative Examples 4, 5, 9 and 10 were slightly lowered by the use of the lubricant E, but stood at nearly 0.1. There was little difference between the friction coefficients of the test units Comparative Examples 4 and 5 and between the friction coefficients of the test units of Comparative Examples 9 and 10.
- As described above, the sliding mechanism according to one exemplary embodiment of the present invention can attain world-class low-friction characteristics and high abrasion resistance and is therefore industrially useful. When the sliding mechanism is used in an internal combustion engine, it becomes possible to reduce friction loss dramatically so as to provide more improvement in vehicle fuel efficiency than ever before.
- Although the present invention has been described with reference to a specific embodiment of the invention, the invention is not limited to the above-described embodiment. Various modifications and variations of the embodiment described above will occur to those skilled in the art in light of the above teaching. The scope of the invention is defined with reference to the following claims.
Claims (21)
1. A low-friction sliding mechanism, comprising:
a first sliding member having a sliding surface, at least the sliding surface of the first sliding member comprising a diamond-like carbon material;
a second sliding member having a sliding surface slidable relative to the sliding surface of the first sliding member, and
a lubricant applied to the sliding surfaces of the first and second sliding members, the lubricant comprising at least one of an ashless fatty-ester friction modifier and an ashless aliphatic-amine friction modifier.
2. A low-friction sliding mechanism according to claim 1 , wherein the diamond-like carbon material of the first sliding member is hydrogen-free amorphous carbon.
3. A low-friction sliding mechanism according to claim 15 , wherein the aluminum-based alloy material of the second sliding member is a hypoeutectic or hypereutectic aluminum alloy containing 4 to 20% by mass silicon and 1.0 to 5.0% by mass copper.
4. A low-friction sliding mechanism according to claim 15 , wherein the magnesium-based alloy material of the second sliding member comprises at least one alloy selected from the group consisting of magnesium-aluminum-zinc alloys, magnesium-aluminum-rare earth metal alloys, magnesium-aluminum-calcium alloys, magnesium-zinc-aluminum-calcium alloys, magnesium-aluminum-calcium-rare earth metal alloys, magnesium-aluminum-strontium alloys, magnesium-aluminum-silicon alloys, magnesium-rare earth metal-zinc alloys, magnesium-silver-rare earth metal alloys and magnesium-yttrium-rare earth metal alloys.
5. A low-friction sliding mechanism according to claim 1 , wherein the diamond-like carbon material of the second sliding member is hydrogen-free amorphous carbon.
6. A low-friction sliding mechanism according to claim 1 , wherein each of the sliding surfaces of the first and second sliding member has an arithmetic mean roughness of 0.1 μm or less.
7. A low-friction sliding mechanism according to claim 1 , wherein the first sliding member comprises a base and a coating of the diamond-like carbon material applied to the base to define the sliding surface, the coating has a thickness of 0.3 to 2.0 μm and a micro Vickers hardness HV of 1000 to 3500 as measured by application of a 10 g load, the second sliding member comprises a aluminum-based alloy material, and the sliding surface of the second sliding member has a Brinell hardness HB of 80 to 130.
8. A low-friction sliding mechanism according to claim 1 , wherein the first sliding member comprises a base and a coating of the diamond-like carbon material applied to the base to define the sliding surface, the coating has a thickness of 0.3 to 2.0 μm and a micro Vickers hardness HV of 1000 to 3500 as measured by application of a 10 g load, the second sliding member comprises an magnesium-based alloy material, and the sliding surface of the second sliding member has a Brinell hardness HB of 45 to 95.
9. A low-friction sliding mechanism according to claim 1 , wherein each of the first and second sliding members comprises a base and a coating of the diamond-like carbon material applied to the base to define the sliding surface, and the coating of each of the first and second sliding members has a thickness of 0.3 to 2.0 μm and a micro Vickers hardness HV of 1000 to 3500 as measured by application of a 10 g load.
10. An internal combustion engine comprising a low-friction sliding mechanism according to claim 1 .
11. A low-friction sliding mechanism according to claim 1 , wherein the fatty-ester friction modifier and the aliphatic-amine friction modifier comprise C6-C30 straight or branched hydrocarbon chains, respectively, and the lubricant comprises 0.05 to 3.0% by mass based on the total mass of the lubricant of the at least one of the fatty-ester friction modifier and the aliphatic-amine friction modifier.
12. A low-friction sliding mechanism according to claim 1 , wherein the lubricant further comprises polybutenyl succinimide and/or a derivative thereof.
13. A low-friction sliding mechanism according to claim 12 , wherein the lubricant comprises 0.1 to 15% by mass based on the total mass of the lubricant of the polybutenyl succinimide and/or the derivative.
14. A low-friction sliding mechanism according to claim 1 , wherein the lubricant further comprises zinc dithiophosphate in an amount of 0.1% or less by mass in terms of an phosphorus element based on a total mass of the lubricant.
15. A low friction sliding mechanism according to claim 1 , wherein at least the sliding surface of the second sliding member comprises an aluminum-based alloy material, a magnesium-based alloy material or a diamond-like carbon material.
16. A low-friction sliding mechanism according to claim 1 , wherein at least one of the first and second sliding members comprises a sliding surface which comprises hydrogen-free amorphous carbon.
17. A low-friction sliding mechanism according to claim 1 , wherein both the first and second sliding members comprise hydrogen-free amorphous carbon sliding surfaces.
18. A low friction sliding mechanism according to claim 16 , wherein the lubricant comprises an ashless fatty-ester friction modifier.
19. A low friction sliding mechanism according to claim 16 , wherein the lubricant comprises an ashless aliphatic-amine friction modifier.
20. A low-friction sliding mechanism, comprising:
a first sliding member having a sliding surface, at least the sliding surface of the first sliding member comprising a diamond-like carbon material wherein the diamond-like carbon material of the first sliding member is hydrogen-free amorphous carbon;
a second sliding member having a sliding surface slidable relative to the sliding surface of the first sliding member; and
a lubricant applied to the sliding surfaces of the first and second sliding members, the lubricant comprising friction modifier.
21. A low-friction sliding mechanism, comprising:
a first sliding member having a sliding surface, at least the sliding surface of the first sliding member comprising a diamond-like carbon material;
a second sliding member having a sliding surface slidable relative to the sliding surface of the first sliding member; and
a lubricant applied to the sliding surfaces of the first and second sliding members, the lubricant comprising at least one of an ashless fatty-ester friction modifier and an ashless aliphatic-amine friction modifier.
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US11/955,949 US20080167206A1 (en) | 2002-11-06 | 2007-12-13 | Low-friction sliding mechanism |
US12/835,705 US8152377B2 (en) | 2002-11-06 | 2010-07-13 | Low-friction sliding mechanism |
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JP2002322322A JP3594190B2 (en) | 2002-11-06 | 2002-11-06 | Low friction sliding material and lubricating oil composition used therefor |
JP2002-322322 | 2002-11-06 | ||
JP2003-207056 | 2003-08-11 | ||
JP2003207056A JP3594193B1 (en) | 2003-08-11 | 2003-08-11 | Low friction sliding member and lubricating oil composition used for the same |
JP2003208193A JP3594194B1 (en) | 2003-08-21 | 2003-08-21 | Low friction sliding mechanism and lubricating oil composition used therefor |
JP2003-208193 | 2003-08-21 | ||
US10/692,853 US6969198B2 (en) | 2002-11-06 | 2003-10-27 | Low-friction sliding mechanism |
US11/123,016 US7322749B2 (en) | 2002-11-06 | 2005-05-06 | Low-friction sliding mechanism |
US11/955,949 US20080167206A1 (en) | 2002-11-06 | 2007-12-13 | Low-friction sliding mechanism |
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US11/955,949 Abandoned US20080167206A1 (en) | 2002-11-06 | 2007-12-13 | Low-friction sliding mechanism |
US12/835,705 Expired - Lifetime US8152377B2 (en) | 2002-11-06 | 2010-07-13 | Low-friction sliding mechanism |
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JP4333794B2 (en) * | 2007-11-06 | 2009-09-16 | トヨタ自動車株式会社 | Sliding structure |
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WO2011022245A1 (en) * | 2009-08-18 | 2011-02-24 | The Lubrizol Corporation | Lubricating composition containing an antiwear agent |
US9051653B2 (en) * | 2010-03-30 | 2015-06-09 | Ntn Corporation | Rolling bearing |
JP2011252073A (en) * | 2010-06-01 | 2011-12-15 | Idemitsu Kosan Co Ltd | Lubricant composition for low-friction slide material, and sliding mechanism using the same |
JP5453532B2 (en) * | 2010-07-09 | 2014-03-26 | 大同メタル工業株式会社 | Sliding member |
US9528180B2 (en) * | 2011-03-02 | 2016-12-27 | Oerlikon Surface Solutions Ag, Pfaffikon | Sliding component coated with metal-comprising carbon layer for improving wear and friction behavior by tribological applications under lubricated conditions |
RU2013149399A (en) * | 2011-04-07 | 2015-05-20 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | LUBRICANT COMPOSITION AND METHOD FOR USING THE LUBRICANT COMPOSITION |
DE102011075969A1 (en) * | 2011-05-17 | 2012-11-22 | Evonik Rohmax Additives Gmbh | Friction-improving polymers for DLC-coated surfaces |
EP2778409B1 (en) * | 2012-03-30 | 2020-07-15 | KYB Corporation | Sliding members and piston pump motor |
US20160237369A1 (en) | 2013-09-30 | 2016-08-18 | The Lubrizol Corporation | Method of friction control |
KR101898070B1 (en) * | 2014-07-17 | 2018-09-12 | 에스엠시 가부시키가이샤 | Electric actuator |
DE102017220152B4 (en) * | 2017-11-13 | 2021-01-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Drive arrangement for a two-wheeler |
JP7040532B2 (en) * | 2017-12-28 | 2022-03-23 | 日産自動車株式会社 | Low friction sliding mechanism |
US10533606B2 (en) * | 2018-04-13 | 2020-01-14 | Hamilton Sundstrand Corporation | Air bearing shaft assembly with surface layer |
EP3569680A1 (en) * | 2018-05-17 | 2019-11-20 | Biotronik Ag | Lubricant, particularly for use in a direct or indirect tubular impact extrusion process, particularly for manufacturing of magnesium alloy tubes |
DE102018131022A1 (en) * | 2018-12-05 | 2020-06-10 | Schaeffler Technologies AG & Co. KG | Plain bearing and method for producing a bearing element for a plain bearing |
US11525384B2 (en) | 2020-02-03 | 2022-12-13 | Fca Us Llc | High temperature resistant low friction washer and assembly |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030162672A1 (en) * | 2002-02-22 | 2003-08-28 | Nissan Motor Co., Ltd. | Low-friction sliding mechanism |
US6969198B2 (en) * | 2002-11-06 | 2005-11-29 | Nissan Motor Co., Ltd. | Low-friction sliding mechanism |
Family Cites Families (417)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1461A (en) | 1839-12-31 | Improvement in fire-arms | ||
DE643034C (en) | 1934-09-24 | 1937-03-22 | Tito Brunetti | Safety device for internal combustion engines |
US2716972A (en) | 1952-02-04 | 1955-09-06 | Farny Paul | Lubrication of engine valves by fuel leakage |
CH316412A (en) | 1952-02-19 | 1956-10-15 | Hoechst Ag | Hydraulic fluid |
NL104477C (en) | 1957-03-05 | |||
US5021628A (en) | 1970-11-30 | 1991-06-04 | Lemelson Jerome H | Apparatus and method for reacting on matter |
US4385880A (en) | 1957-06-27 | 1983-05-31 | Lemelson Jerome H | Shock wave processing apparatus |
US4874596A (en) | 1957-06-27 | 1989-10-17 | Lemelson Jerome H | Production of crystalline structures |
US4702808A (en) | 1957-06-27 | 1987-10-27 | Lemelson Jerome H | Chemical reaction apparatus and method |
US5462772A (en) | 1957-06-27 | 1995-10-31 | Lemelson; Jerome H. | Methods for forming artificial diamond |
US3211653A (en) | 1958-12-31 | 1965-10-12 | Exxon Research Engineering Co | Hypoid gear lubricants for slip-lock differentials |
US5131941A (en) | 1959-04-08 | 1992-07-21 | Lemelson Jerome H | Reaction apparatus and method |
US5552675A (en) | 1959-04-08 | 1996-09-03 | Lemelson; Jerome H. | High temperature reaction apparatus |
NL137370C (en) | 1963-08-02 | |||
US3846162A (en) | 1968-10-21 | 1974-11-05 | Texas Instruments Inc | Metal carbonitride coatings |
SE351012B (en) | 1970-10-01 | 1972-11-13 | Atlas Copco Ab | |
US4367130A (en) | 1970-11-30 | 1983-01-04 | Lemelson Jerome H | Chemical reaction |
JPS533446B2 (en) | 1973-11-01 | 1978-02-07 | ||
US4031023A (en) | 1976-02-19 | 1977-06-21 | The Lubrizol Corporation | Lubricating compositions and methods utilizing hydroxy thioethers |
AT382215B (en) | 1982-09-20 | 1987-01-26 | Miba Gleitlager Ag | HYDRODYNAMIC SLIDING BEARING |
US4554208A (en) | 1983-12-27 | 1985-11-19 | General Motors Corporation | Metal bearing surface having an adherent score-resistant coating |
DE3560285D1 (en) | 1984-04-20 | 1987-07-30 | Inst Francais Du Petrole | Process for the preparation of polysulfurised olefins, products so obtained and their use as additives for lubricants |
US4755237A (en) | 1984-11-26 | 1988-07-05 | Lemelson Jerome H | Methods for making cutting tools |
US4712982A (en) | 1985-03-25 | 1987-12-15 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable displacement wobble plate type compressor with guide means for wobble plate |
EP0221531A3 (en) | 1985-11-06 | 1992-02-19 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | High heat conductive insulated substrate and method of manufacturing the same |
US4755426A (en) | 1986-01-18 | 1988-07-05 | Hitachi Maxell, Ltd. | Magnetic recording medium and production of the same |
US4933058A (en) | 1986-01-23 | 1990-06-12 | The Gillette Company | Formation of hard coatings on cutting edges |
GB8602627D0 (en) | 1986-02-04 | 1986-03-12 | Exxon Chemical Patents Inc | Marine lubricating composition |
US5067826A (en) | 1987-03-31 | 1991-11-26 | Lemelson Jerome H | Ball and roller bearings and bearing components |
US4859493A (en) | 1987-03-31 | 1989-08-22 | Lemelson Jerome H | Methods of forming synthetic diamond coatings on particles using microwaves |
US5132587A (en) | 1987-03-31 | 1992-07-21 | Lemelson Jerome H | Spark plug electrodes |
US6083570A (en) | 1987-03-31 | 2000-07-04 | Lemelson; Jerome H. | Synthetic diamond coatings with intermediate amorphous metal bonding layers and methods of applying such coatings |
US5332348A (en) | 1987-03-31 | 1994-07-26 | Lemelson Jerome H | Fastening devices |
US4960643A (en) | 1987-03-31 | 1990-10-02 | Lemelson Jerome H | Composite synthetic materials |
US5040501A (en) | 1987-03-31 | 1991-08-20 | Lemelson Jerome H | Valves and valve components |
US5096352A (en) | 1987-03-31 | 1992-03-17 | Lemelson Jerome H | Diamond coated fasteners |
US5360227A (en) | 1987-03-31 | 1994-11-01 | Lemelson Jerome H | Skis and runners |
US5288556A (en) | 1987-03-31 | 1994-02-22 | Lemelson Jerome H | Gears and gear assemblies |
US5255929A (en) | 1987-03-31 | 1993-10-26 | Lemelson Jerome H | Blade for ice skate |
JP2599383B2 (en) | 1987-04-11 | 1997-04-09 | 出光興産 株式会社 | Lubricating oil composition |
JP2555284B2 (en) | 1987-05-14 | 1996-11-20 | 出光興産株式会社 | Lubricant composition with improved temperature characteristics |
US4831977A (en) | 1987-07-17 | 1989-05-23 | Ethyl Corporation | Pistons with wear resistant solid film lubricant coatings |
GB2208753B (en) | 1987-08-13 | 1991-06-26 | Commw Of Australia | Improvements in plasma generators |
US5000541A (en) | 1987-09-18 | 1991-03-19 | At&T Bell Laboratories | Hermetically sealed optical fibers |
DE3885827T2 (en) | 1987-09-18 | 1994-03-17 | American Telephone & Telegraph | Hermetically sealed, optical fibers. |
US5036211A (en) | 1988-01-04 | 1991-07-30 | The Commonwealth Of Australia | Infrared signature control mechanism |
FI79351C (en) | 1988-01-18 | 1989-12-11 | Asko Anttila | FOERFARANDE OCH ANORDNING FOER YTBELAEGGNING AV MATERIAL. |
GB8801366D0 (en) * | 1988-01-21 | 1988-02-17 | Secr Defence | Infra red transparent materials |
US5190824A (en) | 1988-03-07 | 1993-03-02 | Semiconductor Energy Laboratory Co., Ltd. | Electrostatic-erasing abrasion-proof coating |
US4834400A (en) | 1988-03-15 | 1989-05-30 | University Of New Mexico | Differential surface roughness dynamic seals and bearings |
US4898131A (en) | 1988-03-18 | 1990-02-06 | Honda Giken Kogyo K.K. | Valve actuating mechanism for internal combustion mechanism |
DE3809734C1 (en) | 1988-03-23 | 1989-05-03 | Helmut Prof. Dr. 7805 Boetzingen De Haberland | |
US5866195A (en) * | 1988-03-31 | 1999-02-02 | Lemelson; Jerome H. | Methods for forming diamond-coated superconductor wire |
DE3815457A1 (en) | 1988-05-06 | 1989-11-16 | Sipra Patent Beteiligung | KNITTING MACHINE |
US5202156A (en) | 1988-08-16 | 1993-04-13 | Canon Kabushiki Kaisha | Method of making an optical element mold with a hard carbon film |
GB8821944D0 (en) | 1988-09-19 | 1988-10-19 | Gillette Co | Method & apparatus for forming surface of workpiece |
US4988421A (en) | 1989-01-12 | 1991-01-29 | Ford Motor Company | Method of toughening diamond coated tools |
US4992082A (en) | 1989-01-12 | 1991-02-12 | Ford Motor Company | Method of toughening diamond coated tools |
US4919974A (en) | 1989-01-12 | 1990-04-24 | Ford Motor Company | Making diamond composite coated cutting tools |
US5187021A (en) | 1989-02-08 | 1993-02-16 | Diamond Fiber Composites, Inc. | Coated and whiskered fibers for use in composite materials |
US4981717A (en) | 1989-02-24 | 1991-01-01 | Mcdonnell Douglas Corporation | Diamond like coating and method of forming |
US4943345A (en) | 1989-03-23 | 1990-07-24 | Board Of Trustees Operating Michigan State University | Plasma reactor apparatus and method for treating a substrate |
JPH0620464B2 (en) | 1989-04-03 | 1994-03-23 | 信越化学工業株式会社 | Medical incision, press-fitting device and method of manufacturing the same |
AU631037B2 (en) | 1989-12-28 | 1992-11-12 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Hard and lubricant thin film of amorphous carbon-hydrogen-silicon, iron base metallic material coated therewith, and the process for producing the same |
US5087608A (en) | 1989-12-28 | 1992-02-11 | Bell Communications Research, Inc. | Environmental protection and patterning of superconducting perovskites |
US5112025A (en) | 1990-02-22 | 1992-05-12 | Tdk Corporation | Molds having wear resistant release coatings |
JP2514097B2 (en) | 1990-03-15 | 1996-07-10 | 帝国ピストンリング株式会社 | Cylinder liner |
US5349265A (en) | 1990-03-16 | 1994-09-20 | Lemelson Jerome H | Synthetic diamond coated electrodes and filaments |
USH1210H (en) | 1990-04-04 | 1993-07-06 | Surface hardening of reprographic machine components by coating or treatment processes | |
US5568391A (en) | 1990-05-29 | 1996-10-22 | Mckee; Lance D. | Automated tile mosaic creation system |
GB9019219D0 (en) | 1990-09-01 | 1990-10-17 | Atomic Energy Authority Uk | Diamond-like carbon coatings |
JPH0796750B2 (en) | 1990-10-13 | 1995-10-18 | ワイケイケイ株式会社 | Color changer for continuous spray dyeing |
US5190807A (en) | 1990-10-18 | 1993-03-02 | Diamonex, Incorporated | Abrasion wear resistant polymeric substrate product |
EP0484699B1 (en) | 1990-11-05 | 1993-08-18 | Detlev Dr. Repenning | Friction pairing and its method of manufacture |
FR2669689B1 (en) | 1990-11-23 | 1994-12-30 | Renault | CONNECTING ROD WITHOUT FOOT PAD AND METHOD FOR PRODUCING THE SAME. |
US5127314A (en) | 1990-11-30 | 1992-07-07 | General Motors Corporation | Compensating cam socket plate torque restraint assembly for a variable displacement compressor |
US5143634A (en) | 1991-01-17 | 1992-09-01 | Amoco Corporation | Anti-wear engine and lubricating oil |
CA2060823C (en) | 1991-02-08 | 2002-09-10 | Naoya Omori | Diamond-or diamond-like carbon-coated hard materials |
CA2065581C (en) | 1991-04-22 | 2002-03-12 | Andal Corp. | Plasma enhancement apparatus and method for physical vapor deposition |
US5142785A (en) | 1991-04-26 | 1992-09-01 | The Gillette Company | Razor technology |
CZ288085B6 (en) | 1991-04-26 | 2001-04-11 | The Gillette Company | Razor blade, shaving unit and process for forming such razor blade |
US5352493A (en) | 1991-05-03 | 1994-10-04 | Veniamin Dorfman | Method for forming diamond-like nanocomposite or doped-diamond-like nanocomposite films |
US5718976A (en) | 1991-05-03 | 1998-02-17 | Advanced Refractory Technologies, Inc. | Erosion resistant diamond-like nanocomposite coatings for optical components |
US5232568A (en) | 1991-06-24 | 1993-08-03 | The Gillette Company | Razor technology |
DE4125165A1 (en) | 1991-07-30 | 1993-02-04 | Hoechst Ceram Tec Ag | BURNED, CERAMIC PRODUCT WITH A STRUCTURED SURFACE AND METHOD FOR THE PRODUCTION THEREOF |
ZA928617B (en) | 1991-11-15 | 1993-05-11 | Gillette Co | Shaving system. |
US5669144A (en) | 1991-11-15 | 1997-09-23 | The Gillette Company | Razor blade technology |
US5334306A (en) | 1991-12-11 | 1994-08-02 | At&T Bell Laboratories | Metallized paths on diamond surfaces |
US5255783A (en) | 1991-12-20 | 1993-10-26 | Fluoroware, Inc. | Evacuated wafer container |
US5317938A (en) | 1992-01-16 | 1994-06-07 | Duke University | Method for making microstructural surgical instruments |
US5295305B1 (en) | 1992-02-13 | 1996-08-13 | Gillette Co | Razor blade technology |
US5359170A (en) | 1992-02-18 | 1994-10-25 | At&T Global Information Solutions Company | Apparatus for bonding external leads of an integrated circuit |
AU651268B2 (en) | 1992-02-18 | 1994-07-14 | Idemitsu Kosan Co. Ltd | Mannich reaction product and process for producing the same and use of the product |
RU2004586C1 (en) | 1992-04-07 | 1993-12-15 | Транснациональна межотраслева компани "Нокпекс" | Method for production of lubricating oil |
EP0649459A1 (en) * | 1992-04-15 | 1995-04-26 | Exxon Chemical Patents Inc. | Lubricant composition containing mixed friction modifiers |
GB9211402D0 (en) | 1992-05-29 | 1992-07-15 | Univ Manchester | Sensor devices |
US5443032A (en) | 1992-06-08 | 1995-08-22 | Air Products And Chemicals, Inc. | Method for the manufacture of large single crystals |
US5299937A (en) | 1992-07-29 | 1994-04-05 | Si Diamond Technology, Inc. | Dental instruments having diamond-like working surface |
US5851962A (en) | 1992-08-18 | 1998-12-22 | Ethyl Japan Corporation | Lubricant composition for wet clutch or wet brake |
US5249554A (en) | 1993-01-08 | 1993-10-05 | Ford Motor Company | Powertrain component with adherent film having a graded composition |
US5237967A (en) | 1993-01-08 | 1993-08-24 | Ford Motor Company | Powertrain component with amorphous hydrogenated carbon film |
EP0619504A1 (en) | 1993-04-08 | 1994-10-12 | Optische Werke G. Rodenstock | Antireflection coating |
JPH06320744A (en) | 1993-04-19 | 1994-11-22 | Xerox Corp | Wet wiping maintenance device for full-width ink jet printer |
JPH06340081A (en) | 1993-04-19 | 1994-12-13 | Xerox Corp | Printing head maintenance device for full-width ink jet printer |
USH1471H (en) | 1993-04-26 | 1995-08-01 | Braun David J | Metal substrate double sided circuit board |
USH1461H (en) | 1993-05-10 | 1995-07-04 | The United States Of America As Represented By The Secretary Of The Army | Abrasion resistant diamond like coating for optical fiber and method of forming the coating |
US5380196A (en) | 1993-05-13 | 1995-01-10 | Minnesota Mining And Manufacturing Company | Orthodontic bracket with archwire slot liner |
US5358402A (en) | 1993-05-13 | 1994-10-25 | Minnesota Mining & Manufacturing Company | Ceramic orthodontic bracket with archwire slot liner |
DE4316012C2 (en) | 1993-05-13 | 1998-09-24 | Gehring Gmbh & Co Maschf | Process for finishing workpiece surfaces |
WO1994026425A1 (en) | 1993-05-17 | 1994-11-24 | Mcdonnell Douglas Corporation | Laser absorption wave deposition process |
US5433977A (en) | 1993-05-21 | 1995-07-18 | Trustees Of Boston University | Enhanced adherence of diamond coatings by combustion flame CVD |
KR0134942B1 (en) | 1993-06-11 | 1998-06-15 | 이다가끼 유끼오 | Method for deposition of amorphous hard carbon films |
US5794801A (en) | 1993-08-16 | 1998-08-18 | Lemelson; Jerome | Material compositions |
BE1008229A3 (en) | 1993-10-29 | 1996-02-20 | Vito | METHOD FOR APPLYING A WEAR PROTECTIVE LAYER TO A SUBSTRATE |
US5482602A (en) * | 1993-11-04 | 1996-01-09 | United Technologies Corporation | Broad-beam ion deposition coating methods for depositing diamond-like-carbon coatings on dynamic surfaces |
US5401543A (en) | 1993-11-09 | 1995-03-28 | Minnesota Mining And Manufacturing Company | Method for forming macroparticle-free DLC films by cathodic arc discharge |
US5447208A (en) | 1993-11-22 | 1995-09-05 | Baker Hughes Incorporated | Superhard cutting element having reduced surface roughness and method of modifying |
EP0661470A3 (en) | 1993-12-27 | 1996-08-14 | Starlite Ind | Sliding Bearing and Counter Parts. |
JPH07197068A (en) * | 1993-12-30 | 1995-08-01 | Tonen Corp | Lubricating oil composition |
US5731046A (en) * | 1994-01-18 | 1998-03-24 | Qqc, Inc. | Fabrication of diamond and diamond-like carbon coatings |
US5479069A (en) | 1994-02-18 | 1995-12-26 | Winsor Corporation | Planar fluorescent lamp with metal body and serpentine channel |
US5541566A (en) | 1994-02-28 | 1996-07-30 | Olin Corporation | Diamond-like carbon coating for magnetic cores |
US5593719A (en) * | 1994-03-29 | 1997-01-14 | Southwest Research Institute | Treatments to reduce frictional wear between components made of ultra-high molecular weight polyethylene and metal alloys |
JPH07286649A (en) | 1994-04-18 | 1995-10-31 | Nippon Seiko Kk | Toroidal type continuously variable transmission |
CN1064294C (en) | 1994-04-25 | 2001-04-11 | 吉莱特公司 | Amorphous diamond coating of blades |
BE1008338A5 (en) | 1994-04-26 | 1996-04-02 | Cobrain Nv | Multi-frequency inductive method and device for working material. |
EP0752018A4 (en) | 1994-05-12 | 1998-09-02 | Qqc Inc | Surface treatment techniques |
US5516729A (en) | 1994-06-03 | 1996-05-14 | Advanced Micro Devices, Inc. | Method for planarizing a semiconductor topography using a spin-on glass material with a variable chemical-mechanical polish rate |
US5464667A (en) | 1994-08-16 | 1995-11-07 | Minnesota Mining And Manufacturing Company | Jet plasma process and apparatus |
US5630275A (en) * | 1994-08-23 | 1997-05-20 | Warner-Lambert Company | Multi-blade razor head with improved performance |
US5551959A (en) * | 1994-08-24 | 1996-09-03 | Minnesota Mining And Manufacturing Company | Abrasive article having a diamond-like coating layer and method for making same |
US6197428B1 (en) * | 1994-08-26 | 2001-03-06 | Deposition Sciences, Inc. | Gemstones and decorative objects comprising a substrate and an optical interference film |
US5619889A (en) * | 1994-10-11 | 1997-04-15 | Fed Corporation | Method of making microstructural surgical instruments |
AU4194896A (en) | 1994-10-18 | 1996-05-06 | Edsi, Inc. | Apparatus for depositing a layer of material on a substrate |
US5461648A (en) | 1994-10-27 | 1995-10-24 | The United States Of America As Represented By The Secretary Of The Navy | Supercritical water oxidation reactor with a corrosion-resistant lining |
US5975686A (en) | 1994-10-31 | 1999-11-02 | Hewlett-Packard Company | Regulator for a free-ink inkjet pen |
US5529815A (en) | 1994-11-03 | 1996-06-25 | Lemelson; Jerome H. | Apparatus and method for forming diamond coating |
WO1996024488A1 (en) | 1995-02-01 | 1996-08-15 | Si Diamond Technology, Inc. | Diamond coated copper optics |
DE19507086C2 (en) | 1995-03-01 | 1997-01-30 | Danfoss As | Water hydraulic control valve |
US5458927A (en) | 1995-03-08 | 1995-10-17 | General Motors Corporation | Process for the formation of wear- and scuff-resistant carbon coatings |
US5901021A (en) * | 1995-05-19 | 1999-05-04 | Sanyo Electric Co., Ltd. | Thin-film magnetic head |
US5714202A (en) * | 1995-06-07 | 1998-02-03 | Lemelson; Jerome H. | Synthetic diamond overlays for gas turbine engine parts having thermal barrier coatings |
US5616372A (en) | 1995-06-07 | 1997-04-01 | Syndia Corporation | Method of applying a wear-resistant diamond coating to a substrate |
US5688557A (en) | 1995-06-07 | 1997-11-18 | Lemelson; Jerome H. | Method of depositing synthetic diamond coatings with intermediates bonding layers |
US5834708A (en) * | 1995-06-08 | 1998-11-10 | Spectra-Physics Scanning Systems, Inc. | Multiple plane weigh platter for multiple plane scanning systems |
SE521725C2 (en) | 1995-09-20 | 2003-12-02 | Uponor Innovation Ab | Hollow product of thermoplastic material and methods for extrusion thereof |
US5927897A (en) | 1995-07-14 | 1999-07-27 | Attar; Adil | Housingless abrasion resistant pavement marker |
CA2229067A1 (en) | 1995-08-14 | 1997-02-27 | E.I. Du Pont De Nemours And Company | Fluorescent lamp |
DE19530511C1 (en) | 1995-08-18 | 1997-02-20 | Alcan Gmbh | Pistons for internal combustion engines |
AUPN547495A0 (en) | 1995-09-15 | 1995-10-12 | Uponor B.V. | Sizing apparatus |
US6468642B1 (en) | 1995-10-03 | 2002-10-22 | N.V. Bekaert S.A. | Fluorine-doped diamond-like coatings |
WO1997014772A1 (en) * | 1995-10-18 | 1997-04-24 | Exxon Chemical Patents Inc. | Lubricating oils of improved friction durability |
EP0862395B1 (en) * | 1995-11-02 | 2004-04-07 | Wright Medical Technology, Inc. | Low-wear ball and cup joint prosthesis |
JPH09164693A (en) | 1995-11-27 | 1997-06-24 | Xerox Corp | Liquid ink printer equipped with consumable goods for maintenance |
US5790146A (en) | 1995-12-04 | 1998-08-04 | Xerox Corporation | Fluid applicator for maintenance of liquid ink printers |
US5672054A (en) | 1995-12-07 | 1997-09-30 | Carrier Corporation | Rotary compressor with reduced lubrication sensitivity |
BR9707237A (en) | 1996-01-30 | 1999-07-20 | Glyco Metall Werke | Sliding bearing element with lubricating oil pockets |
US5824387A (en) | 1996-02-05 | 1998-10-20 | Seagate Technology, Inc. | Magnetic disc with carbon protective layer having regions differing in hardness |
DE19704224A1 (en) | 1996-02-19 | 1997-08-21 | Volkswagen Ag | Connection between lifting piston and connecting rod in vehicle engines |
US6753635B2 (en) | 1996-04-05 | 2004-06-22 | Hi Per Con | Management of contact spots between an electrical brush and substrate |
US5871805A (en) * | 1996-04-08 | 1999-02-16 | Lemelson; Jerome | Computer controlled vapor deposition processes |
ATE263015T1 (en) | 1996-04-19 | 2004-04-15 | Toray Industries | AROMATIC POLYAMIDE FILM, METHOD FOR THE PRODUCTION THEREOF AND MAGNETIC RECORDING MEDIUM PRODUCED FROM THIS FILM |
US5952102A (en) | 1996-05-13 | 1999-09-14 | Ceramatec, Inc. | Diamond coated WC and WC-based composites with high apparent toughness |
WO1997046484A1 (en) | 1996-06-05 | 1997-12-11 | R. Amtekh International, Inc. | Method for forming conformal diamond-type carbon coatings, hard diamond-type carbon coating and porous filtration element using the same |
EP0816112A3 (en) | 1996-07-02 | 1998-10-07 | Corning Incorporated | Method and apparatus for printing color filters |
US6056443A (en) | 1996-07-08 | 2000-05-02 | Citizen Watch Co., Ltd. | Guide bush and method of forming film over guide bush |
US5783261A (en) | 1996-07-11 | 1998-07-21 | Ford Global Technologies, Inc. | Using a coated fuel injector and method of making |
WO1998002715A1 (en) | 1996-07-12 | 1998-01-22 | Phase Metrics | Coatings for simultaneous control of tribological and optical properties of interferometric reference surfaces |
JPH1082390A (en) | 1996-07-18 | 1998-03-31 | Sanyo Electric Co Ltd | Sliding member, compressor and rotary compressor |
US6656329B1 (en) | 1996-08-28 | 2003-12-02 | Premark Rwp Holdings, Inc. | Coated pressing surfaces for abrasion resistant laminate and making laminates therefrom |
US5945214C1 (en) | 1996-08-28 | 2002-04-23 | Premark Rwp Holdings Inc | Diboride coated pressing surfaces for abrasion resistant laminate and making pressing surfaces |
TW385275B (en) | 1996-08-29 | 2000-03-21 | Toray Industries | Aromatic polyamide-based resin molding, a process therefor and magnetic recording medium made from the molding |
DE19635736C2 (en) * | 1996-09-03 | 2002-03-07 | Saxonia Umformtechnik Gmbh | Diamond-like coating |
US5976707A (en) | 1996-09-26 | 1999-11-02 | Kennametal Inc. | Cutting insert and method of making the same |
SE9603540D0 (en) | 1996-09-27 | 1996-09-27 | Ingvar Eriksson | Orthopedic device |
US5910940A (en) | 1996-10-08 | 1999-06-08 | Polaroid Corporation | Storage medium having a layer of micro-optical lenses each lens generating an evanescent field |
US6311524B1 (en) * | 2000-07-14 | 2001-11-06 | 3M Innovative Properties Company | Accelerated method for increasing the photosensitivity of a glassy material |
US5775817A (en) | 1996-11-04 | 1998-07-07 | General Motors Corporation | Fracture process with bore distortion controls |
JPH10184914A (en) | 1996-12-26 | 1998-07-14 | Teikoku Piston Ring Co Ltd | Combination of piston ring and cylinder liner |
KR100247065B1 (en) * | 1997-01-22 | 2000-03-15 | 윤종용 | Optical disc having protective folms |
US5778841A (en) | 1997-02-26 | 1998-07-14 | Cummins Engine Company, Inc. | Camshaft for internal combustion engines |
TW385332B (en) | 1997-02-27 | 2000-03-21 | Idemitsu Kosan Co | Refrigerating oil composition |
US6543394B2 (en) * | 1997-03-03 | 2003-04-08 | Science Applications International Corp. | Four-cycle fuel-lubricated internal combustion engine |
JP3236795B2 (en) | 1997-03-18 | 2001-12-10 | 大同メタル工業株式会社 | Plain bearing |
US5849675A (en) | 1997-04-10 | 1998-12-15 | Chevron Chemical Company | Hydraulic system using an improved antiwear hydraulic fluid |
WO1998047141A1 (en) | 1997-04-16 | 1998-10-22 | Digital Papyrus Corporation | Phase change media compatible with air bearing flying head |
US6030398A (en) | 1997-05-30 | 2000-02-29 | Summit Technology, Inc. | Surgical microtomes |
RU2114210C1 (en) | 1997-05-30 | 1998-06-27 | Валерий Павлович Гончаренко | Process of formation of carbon diamond-like coat in vacuum |
US6305416B1 (en) | 1997-06-09 | 2001-10-23 | Flexcon Industries | Actuator valve for pressure switch for a fluidic system |
US6893720B1 (en) | 1997-06-27 | 2005-05-17 | Nissin Electric Co., Ltd. | Object coated with carbon film and method of manufacturing the same |
US6377422B1 (en) * | 1997-07-08 | 2002-04-23 | Seagate Technology Llc | Disc head with contact protection feature |
US5958261A (en) | 1997-07-17 | 1999-09-28 | General Electric Company | Apparatus for welding with preheated filler material |
US6658941B1 (en) | 1997-07-21 | 2003-12-09 | Helix Technology Corporation | Apparatus and methods for heat loss pressure measurement |
US6938493B2 (en) * | 1997-07-21 | 2005-09-06 | Helix Technology Corporation | Apparatus and methods for heat loss pressure measurement |
US6023979A (en) | 1997-07-21 | 2000-02-15 | Helix Technology | Apparatus and methods for heat loss pressure measurement |
JP4392986B2 (en) | 1997-08-15 | 2010-01-06 | シーゲイト テクノロジー エルエルシー | Disk storage system |
US6071597A (en) | 1997-08-28 | 2000-06-06 | 3M Innovative Properties Company | Flexible circuits and carriers and process for manufacture |
NL1007046C2 (en) | 1997-09-16 | 1999-03-17 | Skf Ind Trading & Dev | Coated rolling bearing. |
US5885942A (en) | 1997-09-23 | 1999-03-23 | Nch Corporation | Multifunctional lubricant additive |
JP3355306B2 (en) | 1997-09-30 | 2002-12-09 | 帝国ピストンリング株式会社 | piston ring |
JP3885375B2 (en) | 1997-09-30 | 2007-02-21 | 帝国ピストンリング株式会社 | piston ring |
US6494881B1 (en) | 1997-09-30 | 2002-12-17 | Scimed Life Systems, Inc. | Apparatus and method for electrode-surgical tissue removal having a selectively insulated electrode |
US6156439A (en) | 1997-10-21 | 2000-12-05 | General Electric Company | Coating for preventing formation of deposits on surfaces contacting hydrocarbon fluids and method therefor |
JP2002527631A (en) | 1997-10-30 | 2002-08-27 | アール キング,クリストファー | Automatic hair isolation and process system |
US6015597A (en) * | 1997-11-26 | 2000-01-18 | 3M Innovative Properties Company | Method for coating diamond-like networks onto particles |
US6726993B2 (en) | 1997-12-02 | 2004-04-27 | Teer Coatings Limited | Carbon coatings, method and apparatus for applying them, and articles bearing such coatings |
US5881444A (en) | 1997-12-12 | 1999-03-16 | Aluminum Company Of America | Techniques for transferring holograms into metal surfaces |
US20040003638A1 (en) * | 1997-12-12 | 2004-01-08 | Schaefer Mark W. | Transfer of holographic images into metal sporting and fitness products |
US7094502B2 (en) | 1997-12-12 | 2006-08-22 | Alcon Inc. | Methods for transferring holographic images into metal surfaces |
WO1999034385A1 (en) | 1997-12-23 | 1999-07-08 | Alfar International Ltd. | A field electron emitter and a method for producing it |
US6190514B1 (en) * | 1997-12-30 | 2001-02-20 | Premark Rwp Holdings, Inc. | Method for high scan sputter coating to produce coated, abrasion resistant press plates with reduced built-in thermal stress |
US6028393A (en) | 1998-01-22 | 2000-02-22 | Energy Conversion Devices, Inc. | E-beam/microwave gas jet PECVD method and apparatus for depositing and/or surface modification of thin film materials |
NL1008593C2 (en) | 1998-03-13 | 1999-09-14 | Skf Eng & Res Centre Bv | Actuator with improved accuracy. |
EP0984161A4 (en) | 1998-03-19 | 2006-01-25 | Sumitomo Electric Industries | Combination of shim and cam |
DE19815989A1 (en) | 1998-04-09 | 1999-10-21 | Uti Holding & Man Ag | Piston-cylinder assembly e.g. for an ic engine |
US6106919A (en) | 1998-04-16 | 2000-08-22 | Digital Papyrus Corporation | Phase change media compatible with air bearing flying head |
US6124198A (en) | 1998-04-22 | 2000-09-26 | Cvc, Inc. | Ultra high-speed chip interconnect using free-space dielectrics |
US6016000A (en) * | 1998-04-22 | 2000-01-18 | Cvc, Inc. | Ultra high-speed chip semiconductor integrated circuit interconnect structure and fabrication method using free-space dielectrics |
FI980884A (en) | 1998-04-22 | 1999-10-23 | Valmet Corp | Parts of a paper / cardboard or finishing machine, which are subject to excessive wear and a process for making them |
US6861791B1 (en) | 1998-04-30 | 2005-03-01 | Crystals And Technologies, Ltd. | Stabilized and controlled electron sources, matrix systems of the electron sources, and method for production thereof |
TW430827B (en) | 1998-05-22 | 2001-04-21 | Advanced Refractory Tech | Resistors with low temperature coefficient of resistance and methods of making |
WO1999062572A1 (en) | 1998-06-03 | 1999-12-09 | N.V. Bekaert S.A. | Stents with a diamond like coating |
DE19825860A1 (en) | 1998-06-10 | 1999-12-16 | Elgan Diamantwerkzeuge Gmbh & | Piston ring for piston engine, with diamond-like coating |
GB2338716B (en) | 1998-06-26 | 2003-04-02 | Mclaughlin James A | An apparatus and a method for coating diamond like carbon (DLC) or other vacuum depositable coatings onto a substrate |
US6273793B1 (en) * | 1998-09-23 | 2001-08-14 | Seagate Technology Llc | Apparatus and method for reducing disc surface asperities to sub-microinch height |
JP2000110719A (en) | 1998-10-05 | 2000-04-18 | Matsushita Electric Ind Co Ltd | Closed type compressor and open type compressor |
GB2342660B (en) | 1998-10-12 | 2000-09-27 | Univ Houston | Process for producing a carbon film on a substrate |
JP3737291B2 (en) | 1998-10-12 | 2006-01-18 | 株式会社神戸製鋼所 | Diamond-like carbon hard multilayer film molded body |
AU3291399A (en) | 1998-10-13 | 2000-05-01 | Minnesota Mining And Manufacturing Company | Head suspension with flexible circuit interconnect for reduced moisture permeability |
US6322431B1 (en) | 1998-10-13 | 2001-11-27 | Seagate Technology Llc | Burnish head with ion milled aerodynamic pads configured in an elliptical pattern |
JP2000120870A (en) | 1998-10-15 | 2000-04-28 | Teikoku Piston Ring Co Ltd | Piston ring |
AU1212600A (en) | 1998-10-23 | 2000-05-15 | Doris Kuhlmann-Wilsdorf | Management of contact spots between an electrical brush and substrate |
AU1213900A (en) | 1998-10-27 | 2000-05-15 | Mcneil-Ppc, Inc. | Method of forming an improved support member for a fabric and film forming device |
FI104103B (en) | 1998-11-09 | 1999-11-15 | Valmet Corp | The coating bar |
US6255262B1 (en) | 1998-11-09 | 2001-07-03 | Exxon Chemical Patents Inc. | High hydroxyl content glycerol di-esters |
FI982570A (en) | 1998-11-27 | 2000-05-28 | Neste Chemicals Oy | Method and apparatus for determining the viscoelastic properties of process fluids and its use |
AU5265300A (en) | 1998-12-02 | 2000-08-29 | Advanced Refractory Technologies, Inc. | Fluorine-doped diamond-like coatings |
WO2000035000A1 (en) | 1998-12-08 | 2000-06-15 | Cvc Products, Inc. | Ultra high-speed semiconductor integrated circuit interconnect structure and fabrication method using free-space dielectric |
KR100325521B1 (en) * | 1998-12-10 | 2002-04-17 | 윤종용 | Method for manufacturing fluid injector and fluid injector manufactured thereby |
JP2000186293A (en) * | 1998-12-21 | 2000-07-04 | Tonen Corp | Diesel engine lubricating oil composition |
JP4251738B2 (en) | 1998-12-25 | 2009-04-08 | 住友電気工業株式会社 | Hard coating and covering member |
AU2968600A (en) | 1999-01-20 | 2000-08-07 | N.V. Bekaert S.A. | Wear-resistant electromechanical contacts |
US6296552B1 (en) | 1999-01-29 | 2001-10-02 | Seagate Technology Llc | Burnishing head with fly height control spacer |
US6401058B1 (en) | 1999-02-12 | 2002-06-04 | Wayne State University | Reciprocating system for simulating friction and wear |
US6572935B1 (en) | 1999-03-13 | 2003-06-03 | The Regents Of The University Of California | Optically transparent, scratch-resistant, diamond-like carbon coatings |
GB2348158A (en) | 1999-03-16 | 2000-09-27 | Teer Coatings Ltd | Lubricated cutting |
EP1171188B1 (en) | 1999-03-24 | 2009-05-06 | Second Sight Medical Products, Inc. | Retinal color prosthesis for color sight restoration |
US6170156B1 (en) * | 1999-03-24 | 2001-01-09 | General Motors Corporation | Gear tooth smoothing and shaping process |
CN1295684C (en) * | 1999-03-26 | 2007-01-17 | 彭佐尔·奎克州立公司 | Lubricant for magnetic recording medium and use thereof |
JP3927724B2 (en) | 1999-04-01 | 2007-06-13 | 東燃ゼネラル石油株式会社 | Lubricating oil composition for internal combustion engines |
JP3555844B2 (en) * | 1999-04-09 | 2004-08-18 | 三宅 正二郎 | Sliding member and manufacturing method thereof |
US6929727B2 (en) | 1999-04-12 | 2005-08-16 | G & H Technologies, Llc | Rectangular cathodic arc source and method of steering an arc spot |
US6645354B1 (en) | 2000-04-07 | 2003-11-11 | Vladimir I. Gorokhovsky | Rectangular cathodic arc source and method of steering an arc spot |
CA2268659C (en) | 1999-04-12 | 2008-12-30 | Vladimir I. Gorokhovsky | Rectangular cathodic arc source and method of steering an arc spot |
US6570172B2 (en) | 1999-05-12 | 2003-05-27 | Plasmion Corporation | Magnetron negative ion sputter source |
JP3051404B1 (en) | 1999-05-19 | 2000-06-12 | 川崎重工業株式会社 | Tappet |
JP2000339083A (en) | 1999-05-28 | 2000-12-08 | Sanyo Electric Co Ltd | Input device |
RU2153782C1 (en) | 1999-06-02 | 2000-07-27 | Закрытое акционерное общество "Патинор Коутингс Лимитед" | Pulse source of carbon plasma |
GB9913438D0 (en) | 1999-06-09 | 1999-08-11 | Imperial College | A rotary pump |
WO2000078504A1 (en) | 1999-06-19 | 2000-12-28 | Speedfam-Ipec Corporation | Method and apparatus for increasing the lifetime of a workpiece retaining structure and conditioning a polishing surface |
MY123377A (en) * | 1999-07-05 | 2006-05-31 | Honda Motor Co Ltd | Sliding members and piston for internal combustion engines |
EP1067211B1 (en) * | 1999-07-08 | 2008-10-01 | Sumitomo Electric Industries, Ltd. | Hard coating and coated member |
US6626949B1 (en) | 1999-07-14 | 2003-09-30 | Biopro, Inc. | Diamond coated joint implant |
US6333298B1 (en) | 1999-07-16 | 2001-12-25 | Infineum International Limited | Molybdenum-free low volatility lubricating oil composition |
US6368676B1 (en) | 1999-07-20 | 2002-04-09 | Diversified Technologies, Inc. | Method of coating an article |
US6083313A (en) | 1999-07-27 | 2000-07-04 | Advanced Refractory Technologies, Inc. | Hardcoats for flat panel display substrates |
US6482778B2 (en) | 1999-08-11 | 2002-11-19 | Ethyl Corporation | Zinc and phosphorus containing transmission fluids having enhanced performance capabilities |
US6205291B1 (en) * | 1999-08-25 | 2001-03-20 | A. O. Smith Corporation | Scale-inhibiting heating element and method of making same |
US6173913B1 (en) | 1999-08-25 | 2001-01-16 | Caterpillar Inc. | Ceramic check for a fuel injector |
JP3748349B2 (en) * | 1999-08-26 | 2006-02-22 | 富士写真フイルム株式会社 | Master for lithographic printing plate |
JP3664058B2 (en) | 1999-09-07 | 2005-06-22 | 日産自動車株式会社 | Rolling element for traction drive and manufacturing method thereof |
US6439986B1 (en) | 1999-10-12 | 2002-08-27 | Hunatech Co., Ltd. | Conditioner for polishing pad and method for manufacturing the same |
KR100467112B1 (en) | 1999-10-29 | 2005-01-24 | 닛폰 피스톤 린구 가부시키가이샤 | Combination of cylinder liner and piston ring of internal combustion engine |
US6733513B2 (en) * | 1999-11-04 | 2004-05-11 | Advanced Bioprosthetic Surfaces, Ltd. | Balloon catheter having metal balloon and method of making same |
US6761736B1 (en) | 1999-11-10 | 2004-07-13 | St. Jude Medical, Inc. | Medical article with a diamond-like carbon coated polymer |
US6537310B1 (en) * | 1999-11-19 | 2003-03-25 | Advanced Bio Prosthetic Surfaces, Ltd. | Endoluminal implantable devices and method of making same |
US6684759B1 (en) * | 1999-11-19 | 2004-02-03 | Vladimir Gorokhovsky | Temperature regulator for a substrate in vapor deposition processes |
US6379383B1 (en) * | 1999-11-19 | 2002-04-30 | Advanced Bio Prosthetic Surfaces, Ltd. | Endoluminal device exhibiting improved endothelialization and method of manufacture thereof |
US6849085B2 (en) * | 1999-11-19 | 2005-02-01 | Advanced Bio Prosthetic Surfaces, Ltd. | Self-supporting laminated films, structural materials and medical devices manufactured therefrom and method of making same |
US6386468B1 (en) | 1999-11-29 | 2002-05-14 | Ceramoptec Industries, Inc. | Mechano-chemical flourination: improved method of fullerene fluorination |
AU2905901A (en) | 1999-11-30 | 2001-06-12 | Regents Of The University Of California, The | Method for producing fluorinated diamond-like carbon films |
TW490703B (en) | 1999-12-13 | 2002-06-11 | Axcelis Tech Inc | Diamond-like coated component in an ion implanter for reduced x-ray emissions |
JP4359979B2 (en) | 1999-12-16 | 2009-11-11 | 住友電気工業株式会社 | Covered sliding member |
US6471979B2 (en) | 1999-12-29 | 2002-10-29 | Estrogen Vascular Technology, Llc | Apparatus and method for delivering compounds to a living organism |
WO2001047451A1 (en) | 1999-12-29 | 2001-07-05 | Gishel New | Apparatus and method for delivering compounds to a living organism |
WO2001059544A2 (en) | 2000-02-14 | 2001-08-16 | Rainbow Technologies B.V., Netherlands | Security module system, apparatus and process |
US6715693B1 (en) | 2000-02-15 | 2004-04-06 | Caterpillar Inc | Thin film coating for fuel injector components |
CA2400411A1 (en) | 2000-02-16 | 2001-08-23 | Fullerene International Corporation | Diamond/carbon nanotube structures for efficient electron field emission |
DE60135308D1 (en) | 2000-02-23 | 2008-09-25 | Schlom Leslie | HEAT EXCHANGER FOR COOLING AND USE IN THE PRE-COOLER OF TURBINE AIR PREPARATION |
JP4560964B2 (en) | 2000-02-25 | 2010-10-13 | 住友電気工業株式会社 | Amorphous carbon coated member |
US6684513B1 (en) * | 2000-02-29 | 2004-02-03 | The Gillette Company | Razor blade technology |
US6316734B1 (en) | 2000-03-07 | 2001-11-13 | 3M Innovative Properties Company | Flexible circuits with static discharge protection and process for manufacture |
US6695865B2 (en) * | 2000-03-20 | 2004-02-24 | Advanced Bio Prosthetic Surfaces, Ltd. | Embolic protection device |
JP3630297B2 (en) * | 2000-03-23 | 2005-03-16 | 日産自動車株式会社 | Toroidal continuously variable transmission for automobiles |
US6439845B1 (en) | 2000-03-23 | 2002-08-27 | Kidney Replacement Services, P.C. | Blood pump |
JP4730753B2 (en) | 2000-03-23 | 2011-07-20 | 株式会社神戸製鋼所 | Diamond-like carbon hard multilayer film and members with excellent wear resistance and sliding resistance |
US6399215B1 (en) | 2000-03-28 | 2002-06-04 | The Regents Of The University Of California | Ultrafine-grained titanium for medical implants |
JP2001280236A (en) | 2000-03-29 | 2001-10-10 | Taiho Kogyo Co Ltd | Swash plate for swash plate type compressor, and swash plate type compressor |
DE10018143C5 (en) | 2000-04-12 | 2012-09-06 | Oerlikon Trading Ag, Trübbach | DLC layer system and method and apparatus for producing such a layer system |
JP2001295576A (en) | 2000-04-12 | 2001-10-26 | Japan National Oil Corp | Bit device |
JP2001297555A (en) | 2000-04-14 | 2001-10-26 | Sony Corp | Disk cartridge and shutter as well as manufacturing method md manufacturing apparatus for the same |
WO2001080224A2 (en) | 2000-04-14 | 2001-10-25 | Seagate Technology Llc | Ultrathin protective overcoats for magnetic materials |
WO2001079583A2 (en) | 2000-04-14 | 2001-10-25 | Technology International, Inc. | Diamonds having improved durability |
US6592519B1 (en) | 2000-04-28 | 2003-07-15 | Medtronic, Inc. | Smart microfluidic device with universal coating |
US6919001B2 (en) * | 2000-05-01 | 2005-07-19 | Intevac, Inc. | Disk coating system |
US6753042B1 (en) | 2000-05-02 | 2004-06-22 | Itac Limited | Diamond-like carbon thin film coating process |
GB0011115D0 (en) | 2000-05-09 | 2000-06-28 | Infineum Int Ltd | Lubricating oil compositions |
US6914919B2 (en) * | 2000-06-19 | 2005-07-05 | Cymer, Inc. | Six to ten KHz, or greater gas discharge laser system |
JP2004506288A (en) | 2000-08-09 | 2004-02-26 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Method of manufacturing magnetic head having planar coil |
US6324060B1 (en) | 2000-08-15 | 2001-11-27 | Hul Chun Hsu | Heat transfer interface |
IL144688A0 (en) | 2000-09-01 | 2002-06-30 | Premark Rwp Holdings Inc | Polishing of press plates coated with titanium diboride |
EP1190791B1 (en) | 2000-09-20 | 2010-06-23 | Camco International (UK) Limited | Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength |
ATE449748T1 (en) | 2000-09-20 | 2009-12-15 | Camco Int Uk Ltd | POLYCRYSTALLINE DIAMOND WITH A SURFACE DEFERRED IN CATALYST MATERIAL |
JP4954429B2 (en) | 2000-09-20 | 2012-06-13 | キャムコ、インターナショナル、(ユーケイ)、リミテッド | Polycrystalline diamond with a surface depleted of catalytic material |
US6592985B2 (en) * | 2000-09-20 | 2003-07-15 | Camco International (Uk) Limited | Polycrystalline diamond partially depleted of catalyzing material |
DE60140617D1 (en) | 2000-09-20 | 2010-01-07 | Camco Int Uk Ltd | POLYCRYSTALLINE DIAMOND WITH A SURFACE ENRICHED ON CATALYST MATERIAL |
DE10046956C2 (en) | 2000-09-21 | 2002-07-25 | Federal Mogul Burscheid Gmbh | Thermally applied coating for piston rings made of mechanically alloyed powders |
DE10061397B4 (en) * | 2000-09-29 | 2004-04-08 | Desch Antriebstechnik Gmbh & Co. Kg | Planetary gear and planetary bearings and their components |
US6821189B1 (en) | 2000-10-13 | 2004-11-23 | 3M Innovative Properties Company | Abrasive article comprising a structured diamond-like carbon coating and method of using same to mechanically treat a substrate |
US20020051286A1 (en) * | 2000-10-27 | 2002-05-02 | Honeywell, Inc. | Wavlength specific coating for mirrored optics and method for reducing reflection of white light |
US6871700B2 (en) | 2000-11-17 | 2005-03-29 | G & H Technologies Llc | Thermal flux regulator |
US6739238B2 (en) | 2000-11-20 | 2004-05-25 | Nissan Motor Co., Ltd. | Sliding structure for a reciprocating internal combustion engine and a reciprocating internal combustion engine using the sliding structure |
FR2817267B1 (en) | 2000-11-28 | 2003-08-29 | Essilor Int | METHOD OF DEPOSITING ANTI-REFLECTIVE COLD LAYER ON ORGANIC SUBSTRATE |
JP4948725B2 (en) | 2000-12-05 | 2012-06-06 | 三星ダイヤモンド工業株式会社 | Chip holder |
DE10061697A1 (en) | 2000-12-12 | 2002-06-27 | Infineon Technologies Ag | Method and device for determining a key pair and for generating RSA keys |
DE60132754T2 (en) | 2000-12-20 | 2009-03-05 | Fujifilm Corporation | Lithographic printing plate precursor |
US6537429B2 (en) * | 2000-12-29 | 2003-03-25 | Lam Research Corporation | Diamond coatings on reactor wall and method of manufacturing thereof |
US6729527B2 (en) * | 2001-01-30 | 2004-05-04 | Kulicke & Soffa Investments, Inc. | Bonding tool with polymer coating |
WO2002062113A1 (en) * | 2001-02-01 | 2002-08-08 | Zakrytoe Aktsionernoe Obschestvo 'patinor Coatings Limited' | Impulsive source of carbon plasma |
JP3712052B2 (en) | 2001-02-09 | 2005-11-02 | 日産自動車株式会社 | Low friction sliding member |
US20020151441A1 (en) | 2001-02-14 | 2002-10-17 | Sanjay Srinivasan | Automatic transmission fluids with improved anti-shudder properties |
JP2002265968A (en) | 2001-03-14 | 2002-09-18 | Mitsuhiko Iino | Lubricant composition |
US6761532B2 (en) | 2001-03-14 | 2004-07-13 | Vascor, Inc. | Touch down of blood pump impellers |
DE10112132A1 (en) * | 2001-03-14 | 2002-09-19 | Bayerische Motoren Werke Ag | Cylinder crankcase for a liquid-cooled internal combustion engine |
US20020130219A1 (en) | 2001-03-19 | 2002-09-19 | Parseghian Van R. | System for restraining aircraft delivery carts |
US6855791B2 (en) * | 2002-07-09 | 2005-02-15 | Signature Control Systems | Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds |
US20040133301A1 (en) | 2002-07-09 | 2004-07-08 | Signature Control Systems | Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds |
JP3292199B2 (en) | 2001-03-22 | 2002-06-17 | 住友電気工業株式会社 | Rubber mold, method for manufacturing rubber mold, and method for molding rubber |
JP2003113941A (en) | 2001-03-30 | 2003-04-18 | Nippon Piston Ring Co Ltd | Piston ring and combination structure of piston ring and ring groove of piston |
US20020175476A1 (en) | 2001-03-30 | 2002-11-28 | Nippon Piston Ring Co., Ltd. | Piston ring, and combined structure of piston ring and ring groove of piston |
WO2002080996A1 (en) | 2001-04-03 | 2002-10-17 | Franz Herbst | Medical implant and method for producing the same |
JP3587379B2 (en) | 2001-04-17 | 2004-11-10 | 日産自動車株式会社 | Automotive engine valve train shims and lifters, and combinations of these with camshafts |
WO2002085237A2 (en) | 2001-04-25 | 2002-10-31 | General Plasma, Llc | Diamond-like coating, method of its plating and dental bur with the said diamond-like coating |
JP4578716B2 (en) | 2001-05-08 | 2010-11-10 | 株式会社デンソー | Gasoline lubricated sliding member |
US6729350B2 (en) * | 2001-05-25 | 2004-05-04 | Upchurch Scientific, Inc. | Valve for use with capillary tubing |
NL1018190C2 (en) | 2001-05-31 | 2002-12-03 | Skf Ab | Coolant lubricated rolling bearing. |
US7712222B2 (en) | 2001-07-26 | 2010-05-11 | Irwin Industrial Tool Company | Composite utility blade, and method of making such a blade |
US6701627B2 (en) | 2001-07-26 | 2004-03-09 | American Saw & Mfg. Company, Inc. | Composite utility knife blade |
US6666328B2 (en) | 2001-08-07 | 2003-12-23 | Stapell/Guider Corporation | Long wear conveyor assembly |
JP2003113913A (en) | 2001-10-02 | 2003-04-18 | Tsubakimoto Chain Co | Movable lever for transmission chain |
AU2002337418A1 (en) | 2001-10-05 | 2003-04-22 | Unichema Chemie B.V. | Lubricant or fuel composition comprising an amide as friction-reducing additive |
JP2003147508A (en) | 2001-11-07 | 2003-05-21 | Sumitomo Electric Ind Ltd | Carbon film, method of depositing carbon film, and carbon film-coated member |
ATE509272T1 (en) * | 2001-11-09 | 2011-05-15 | 3Dbiosurfaces Technologies Llc | SUBSTRATES WITH HIGH SURFACE AREA FOR MICROARRAYS AND METHOD FOR PRODUCING SAME |
DE10158683A1 (en) | 2001-11-23 | 2003-06-05 | Tea Gmbh | Functional fluid based on glycols, polyglycols and/or polyol esters, useful for cooling and lubrication, especially in internal combustion engines, includes polysuccinimide |
JP2003184883A (en) | 2001-12-20 | 2003-07-03 | Nissan Motor Co Ltd | Bearing sliding member |
US6982510B1 (en) | 2001-12-20 | 2006-01-03 | Seagate Technology Llc | Low profile fluid dynamic bearing |
US7246699B2 (en) * | 2002-03-08 | 2007-07-24 | Frost Links, Inc. | Conveyor chain |
US6991094B2 (en) | 2002-03-08 | 2006-01-31 | Frost Links, Inc. | Conveyor chain |
GB0205959D0 (en) | 2002-03-14 | 2002-04-24 | Teer Coatings Ltd | Apparatus and method for applying diamond-like carbon coatings |
JP2004003435A (en) | 2002-04-23 | 2004-01-08 | Denso Corp | Fuel injection valve for internal combustion engine and method for manufacturing the same |
US20030202763A1 (en) | 2002-04-24 | 2003-10-30 | Starodubov Dmitry S. | Method for forming a protective coating on an optical fiber |
FI20020909A0 (en) * | 2002-05-14 | 2002-05-14 | Perlos Oyj | Inhaler, component of an inhaler and method of manufacturing the same |
US20040011900A1 (en) * | 2002-05-22 | 2004-01-22 | Jens Gebhardt | Fuel injector assembly |
AU2002337644A1 (en) | 2002-06-07 | 2003-12-22 | Seagate Technology Llc | Slider deposits for control of pole-to-disc spacing |
US20030234371A1 (en) | 2002-06-19 | 2003-12-25 | Ziegler Byron J. | Device for generating reactive ions |
JP2004033513A (en) * | 2002-07-04 | 2004-02-05 | Mizuno Corp | Wood golf club head |
US7422370B2 (en) * | 2002-08-06 | 2008-09-09 | Seagate Technology Llc | Hydraulic compensation for magnetically biased fluid dynamic bearing motor |
US6780177B2 (en) | 2002-08-27 | 2004-08-24 | Board Of Trustees Of The University Of Arkansas | Conductive interstitial thermal therapy device |
WO2004024206A1 (en) | 2002-09-12 | 2004-03-25 | Estrogen Vascular Technology, Llc | Apparatus and method for delivering compounds to a living organism |
US20040063805A1 (en) * | 2002-09-19 | 2004-04-01 | Pacetti Stephen D. | Coatings for implantable medical devices and methods for fabrication thereof |
GB2410280B (en) * | 2002-09-20 | 2007-04-04 | Enventure Global Technology | Self-lubricating expansion mandrel for expandable tubular |
JP4063026B2 (en) | 2002-09-24 | 2008-03-19 | 日産自動車株式会社 | Control device for internal combustion engine |
CN1296603C (en) | 2002-09-27 | 2007-01-24 | 日产自动车株式会社 | Comnbination of air-valve parting slip and rod with camshaft, and said slip and rod thereof |
US6745742B2 (en) | 2002-10-07 | 2004-06-08 | Siegfried Meyer | Connecting rod structure |
BR0315249A (en) * | 2002-10-12 | 2005-08-30 | Intellimats Llc | Variable Image Orientation Floor Display System |
JP2004138128A (en) | 2002-10-16 | 2004-05-13 | Nissan Motor Co Ltd | Sliding member for automotive engine |
GB0224779D0 (en) * | 2002-10-24 | 2002-12-04 | Barnes Charles F J | Information storage system |
AU2002368353A1 (en) | 2002-11-07 | 2004-06-03 | Honeywell International Inc. | Die cast sputter targets |
CN1726145A (en) | 2002-11-26 | 2006-01-25 | 弗洛斯特有限公司 | Journal bearing for trolley wheel |
US7387081B2 (en) | 2003-01-23 | 2008-06-17 | 3M Innovative Properties Company | Plasma reactor including helical electrodes |
US20040146262A1 (en) | 2003-01-23 | 2004-07-29 | 3M Innovative Properties Company | Frozen-fluid fiber guide |
US7299749B2 (en) * | 2003-02-10 | 2007-11-27 | Fujifilm Corporation | Lithographic printing plate support and production method thereof |
GB0303158D0 (en) * | 2003-02-12 | 2003-03-19 | Scion Sprays Ltd | An electrostatic atomiser |
WO2004078424A2 (en) * | 2003-03-05 | 2004-09-16 | Irwin Industrial Tool Company | Composite utility blade, and method of making such a blade |
US20040186585A1 (en) * | 2003-03-21 | 2004-09-23 | Lawrence Feiwell | Sphere-on-sphere ankle prosthesis |
JP3891433B2 (en) * | 2003-04-15 | 2007-03-14 | 日産自動車株式会社 | Fuel injection valve |
US20040222594A1 (en) * | 2003-05-08 | 2004-11-11 | Dresser-Rand Company | Oil film sealing device for a rotating shaft |
US7327535B2 (en) | 2003-05-08 | 2008-02-05 | Sae Magnetics (H.K.) Ltd. | Hybrid coating for magnetic heads |
EP1479946B1 (en) * | 2003-05-23 | 2012-12-19 | Nissan Motor Co., Ltd. | Piston for internal combustion engine |
EP1482190B1 (en) | 2003-05-27 | 2012-12-05 | Nissan Motor Company Limited | Rolling element |
US20040241019A1 (en) * | 2003-05-28 | 2004-12-02 | Michael Goldowsky | Passive non-contacting smart bearing suspension for turbo blood-pumps |
JP2005008851A (en) | 2003-05-29 | 2005-01-13 | Nissan Motor Co Ltd | Cutting oil for cutting tool coated with hard carbon thin film, and cutting tool coated with hard carbon thin film |
JP2004360649A (en) | 2003-06-06 | 2004-12-24 | Nissan Motor Co Ltd | Piston pin for engine |
US20050001201A1 (en) * | 2003-07-03 | 2005-01-06 | Bocko Peter L. | Glass product for use in ultra-thin glass display applications |
EP1498597A1 (en) * | 2003-07-17 | 2005-01-19 | Sorevi S.A. | Piston with a skirt having a low coefficient of friction |
US7927700B2 (en) | 2003-07-25 | 2011-04-19 | Nv Bekaert Sa | Substrate covered with an intermediate coating and a hard carbon coating |
US7144403B2 (en) * | 2003-07-29 | 2006-12-05 | Alcon, Inc. | Surgical knife |
JP4863152B2 (en) * | 2003-07-31 | 2012-01-25 | 日産自動車株式会社 | gear |
EP1666572B1 (en) | 2003-08-06 | 2017-05-17 | Nippon Oil Corporation | System having dlc contacting faces, method for lubricating the system and lubricating oil for the system |
JP2005054617A (en) * | 2003-08-08 | 2005-03-03 | Nissan Motor Co Ltd | Valve system |
JP4973971B2 (en) | 2003-08-08 | 2012-07-11 | 日産自動車株式会社 | Sliding member |
EP1507070B1 (en) | 2003-08-11 | 2007-11-21 | Nissan Motor Co., Ltd. | Fuel lubricated sliding mechanism |
JP2005090489A (en) | 2003-08-11 | 2005-04-07 | Nissan Motor Co Ltd | Valve lifter for internal combustion engine |
JP4117553B2 (en) * | 2003-08-13 | 2008-07-16 | 日産自動車株式会社 | Chain drive |
DE602004008547T2 (en) * | 2003-08-13 | 2008-05-21 | Nissan Motor Co., Ltd., Yokohama | Structure for connecting a piston to a crankshaft |
DE10337559A1 (en) | 2003-08-14 | 2005-03-10 | Stankiewicz Gmbh | Mold for the production of molded foam bodies |
US7771821B2 (en) | 2003-08-21 | 2010-08-10 | Nissan Motor Co., Ltd. | Low-friction sliding member and low-friction sliding mechanism using same |
JP4539205B2 (en) | 2003-08-21 | 2010-09-08 | 日産自動車株式会社 | Refrigerant compressor |
EP1508611B1 (en) | 2003-08-22 | 2019-04-17 | Nissan Motor Co., Ltd. | Transmission comprising low-friction sliding members and transmission oil therefor |
AU2003304468A1 (en) * | 2003-09-02 | 2005-04-06 | Magnitskii, Sergei | Multilayer reflective information carrier and method for manufacturing thereof |
WO2005021851A1 (en) | 2003-09-03 | 2005-03-10 | Nv Bekaert Sa | Coated rapier |
ITTO20030135U1 (en) | 2003-09-04 | 2005-03-05 | Lgl Electronics Spa | SELF-ADJUSTING BRAKING DEVICE FOR WEAVING FRAMES WITH WEAVING FRAMES |
US20050139395A1 (en) * | 2003-10-09 | 2005-06-30 | Farzad Shaygan | Drill bit with a moissanite (silicon carbide) cutting element |
US7931938B2 (en) | 2003-10-10 | 2011-04-26 | Cellular Bioengineering, Inc. | Diamond-like carbon-coated cell culture substrates |
JP2007509643A (en) * | 2003-10-10 | 2007-04-19 | ゲ・ミン・ルイ | Methods and compositions for growth of corneal endothelium and related cells on biopolymers and creation of artificial corneal grafts |
JP2007509654A (en) | 2003-10-31 | 2007-04-19 | ベントラコー リミテッド | Improved blood pump comprising a polymer element |
EP1697659A1 (en) | 2003-11-10 | 2006-09-06 | The Timken Company | Differential with thin film coating at cross shaft and processes for manufacturing the same |
-
2003
- 2003-10-27 US US10/692,853 patent/US6969198B2/en not_active Expired - Lifetime
- 2003-11-05 AT AT03025444T patent/ATE376628T1/en not_active IP Right Cessation
- 2003-11-05 DE DE60317026T patent/DE60317026T2/en not_active Expired - Lifetime
- 2003-11-05 EP EP03025444A patent/EP1418353B1/en not_active Expired - Lifetime
-
2005
- 2005-05-06 US US11/123,016 patent/US7322749B2/en not_active Expired - Lifetime
-
2007
- 2007-12-13 US US11/955,949 patent/US20080167206A1/en not_active Abandoned
-
2010
- 2010-07-13 US US12/835,705 patent/US8152377B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030162672A1 (en) * | 2002-02-22 | 2003-08-28 | Nissan Motor Co., Ltd. | Low-friction sliding mechanism |
US6969198B2 (en) * | 2002-11-06 | 2005-11-29 | Nissan Motor Co., Ltd. | Low-friction sliding mechanism |
US7322749B2 (en) * | 2002-11-06 | 2008-01-29 | Nissan Motor Co., Ltd. | Low-friction sliding mechanism |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120177915A1 (en) * | 2009-09-15 | 2012-07-12 | Nippon Itf Inc. | Lubricant composition and sliding mechanism using the lubricant composition |
US9593291B2 (en) | 2012-03-16 | 2017-03-14 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition, and sliding mechanism using lubricating oil composition |
US9803155B2 (en) | 2012-03-16 | 2017-10-31 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition, and sliding mechanism using lubricating oil composition |
WO2014099537A1 (en) * | 2012-12-20 | 2014-06-26 | The Lubrizol Corporation | Lubricant composition including 4-hydroxybenzamide friction modifier |
US9765274B2 (en) | 2012-12-20 | 2017-09-19 | The Lubrizol Corporation | Lubricant composition including 4-hydroxybenzamide friction modifier |
Also Published As
Publication number | Publication date |
---|---|
US8152377B2 (en) | 2012-04-10 |
US20110028361A1 (en) | 2011-02-03 |
EP1418353A3 (en) | 2005-06-29 |
US20040092405A1 (en) | 2004-05-13 |
US7322749B2 (en) | 2008-01-29 |
ATE376628T1 (en) | 2007-11-15 |
EP1418353B1 (en) | 2007-10-24 |
US6969198B2 (en) | 2005-11-29 |
DE60317026T2 (en) | 2008-08-07 |
EP1418353A2 (en) | 2004-05-12 |
US20050213854A1 (en) | 2005-09-29 |
DE60317026D1 (en) | 2007-12-06 |
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