US20060278180A1 - Piston for an internal combustion engine - Google Patents
Piston for an internal combustion engine Download PDFInfo
- Publication number
- US20060278180A1 US20060278180A1 US10/570,104 US57010406A US2006278180A1 US 20060278180 A1 US20060278180 A1 US 20060278180A1 US 57010406 A US57010406 A US 57010406A US 2006278180 A1 US2006278180 A1 US 2006278180A1
- Authority
- US
- United States
- Prior art keywords
- piston
- ring
- basic body
- ring element
- piston head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
- F02F3/003—Multi-part pistons the parts being connected by casting, brazing, welding or clamping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
- F02F3/0023—Multi-part pistons the parts being bolted or screwed together
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/09—Pistons; Trunk pistons; Plungers with means for guiding fluids
Definitions
- the invention relates to a piston for an internal combustion engine, in accordance with the preamble of the claim.
- a piston for an internal combustion engine having a basic body made of aluminum and a ring element disposed in a radially outer edge region of the piston head, which ring element forms a ring-shaped cooling channel with the basic body, is known from U.S. Pat. No. 2,772,933.
- the ring element consists of an iron alloy, which brings the disadvantage with it that the ring element makes a significant contribution to increasing the piston weight.
- the ring element which, according to the invention, consists of aluminum, having a ring insert consisting of Ni resist, for a compression ring, combines the advantage of reducing the piston weight with the advantage of offering a wear-resistant bearing for the compression ring, and thereby increasing the ability of the piston to withstand stress, and its useful lifetime.
- FIG. 2 an enlarged representation of the section through the edge region of the piston head having the ring element.
- FIG. 1 shows a piston 1 for an internal combustion engine, in a sectional representation that consists of two halves, of which the left half shows a section of the piston 1 along a longitudinal axis 2 of a pin bore 3 , and the right half shows a section through the piston 1 that is offset by 90° relative to the left half.
- the ring element 6 is attached on the basic body 4 by way of a screw connection, in which the ring element 6 is screwed onto an outside thread 18 by way of an inside thread 19 , which is situated on the radially inner side of the ring element 6 , which outside thread is disposed on an axially oriented region 23 of the mantle surface 13 , which is adjacent to the piston head 5 and is set back in the direction of the longitudinal axis 17 of the piston.
- the radially inner side of the ring element 6 has a recess 20 on its lower end that faces away from the piston head 5 , which recess forms a ring-shaped cooling channel 22 with a recess 21 that is molded into the lower end of the set-back mantle region 23 on the piston head side. Cooling oil is passed into the cooling channel 22 and back out of the cooling channel 22 by way of channels not shown in the figure.
- the end of the screw connection 18 , 19 that is on the piston head side is sealed by means of a weld seam 24 , which can be produced, for example, using the electron beam welding method.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention relates to a piston for an internal combustion engine, comprising an essentially cylindrical basis member made of forged aluminum and a ring element that is disposed in the radially outer edge area of the bottom of the piston and forms an annular cooling channel along with the basic member. The ring element is made of cast aluminum and is provided with a ring support for a compression ring, said ring support being made of Ni-resist.
Description
- The invention relates to a piston for an internal combustion engine, in accordance with the preamble of the claim.
- A piston for an internal combustion engine, having a basic body made of aluminum and a ring element disposed in a radially outer edge region of the piston head, which ring element forms a ring-shaped cooling channel with the basic body, is known from U.S. Pat. No. 2,772,933. The ring element consists of an iron alloy, which brings the disadvantage with it that the ring element makes a significant contribution to increasing the piston weight.
- It is the task of the invention to avoid this disadvantage. This task is accomplished with the characteristics that stand in the characterizing part of the main claim. A practical embodiment of the invention is the object of the dependent claim.
- The ring element which, according to the invention, consists of aluminum, having a ring insert consisting of Ni resist, for a compression ring, combines the advantage of reducing the piston weight with the advantage of offering a wear-resistant bearing for the compression ring, and thereby increasing the ability of the piston to withstand stress, and its useful lifetime.
- An exemplary embodiment of the invention is described below, using the drawings. These show:
-
FIG. 1 a piston for an internal combustion engine, having an aluminum ring element according to the invention, in a sectional drawing consisting of two halves, which drawing shows two longitudinal sections of the piston, offset by 90°, and -
FIG. 2 an enlarged representation of the section through the edge region of the piston head having the ring element. -
FIG. 1 shows a piston 1 for an internal combustion engine, in a sectional representation that consists of two halves, of which the left half shows a section of the piston 1 along a longitudinal axis 2 of apin bore 3, and the right half shows a section through the piston 1 that is offset by 90° relative to the left half. - The piston 1 consists of an essentially cylindrical
basic body 4, the one face of which forms thepiston head 5. Aring element 6 is disposed in the radially outer region of thepiston head 5. Acombustion chamber 7 is molded into the central region of thepiston head 5. Furthermore, thebasic body 4 haspin bosses 8 for thepin bores 3 andskirt elements 9 that connect thepin bosses 8 with one another, on its underside that faces away from thepiston head 5. Thering element 6 has aring insert 11 for a compression ring, not shown in the drawing, on its radiallyouter mantle surface 10, and asecond ring groove 12 below this. Below thesecond ring groove 12, anoil ring groove 14 is disposed in themantle surface 13 of thebasic body 4. - The
ring element 6 is attached on thebasic body 4 by way of a screw connection, in which thering element 6 is screwed onto anoutside thread 18 by way of aninside thread 19, which is situated on the radially inner side of thering element 6, which outside thread is disposed on an axiallyoriented region 23 of themantle surface 13, which is adjacent to thepiston head 5 and is set back in the direction of thelongitudinal axis 17 of the piston. - The radially inner side of the
ring element 6 has arecess 20 on its lower end that faces away from thepiston head 5, which recess forms a ring-shaped cooling channel 22 with arecess 21 that is molded into the lower end of the set-back mantle region 23 on the piston head side. Cooling oil is passed into thecooling channel 22 and back out of thecooling channel 22 by way of channels not shown in the figure. - In order to prevent combustion gases, which are under high pressure, from getting into the
cooling channel 22 and into the interior of the piston by means of thescrew connection screw connection weld seam 24, which can be produced, for example, using the electron beam welding method. - The piston 1 that consists of the
basic body 4 and thering element 6 is produced from aluminum, whereby thebasic body 4 is given the desired shape by means of forging, whereas thering element 6 is produced using a casting method. In this connection, thering insert 11, which consists of Ni resist (austenitic cast iron with components of Ni, Mn, Cu, and Cr), is cast into thering element 6. After thering element 6 has been screwed onto thebasic body 4, and thescrew connection weld seam 24, the piston 1 is given its final shape by means of a cutting production process, for example by means of lathing. - The section through the edge region of the piston 1 on the piston head side, shown in
FIG. 2 , shows thering element 6 having the cast-inring insert 11, which is connected with thebasic body 4 by way of the screw connection that consists of insidethread 19 and outsidethread 18. Theweld seam 24 that serves to seal thescrew connection -
- 1 piston
- 2 longitudinal axis
- 3 pin bore
- 4 basic body
- 5 piston head
- 6 ring element
- 7 combustion chamber
- 8 pin boss
- 9 skirt element
- 10 mantle surface
- 11 ring insert
- 12 second ring groove
- 13 mantle surface
- 14 oil ring groove
- 17 longitudinal axis of piston
- 18 outside thread
- 19 inside thread
- 20 recess
- 21 recess
- 22 cooling channel
- 23 region of the mantle surface of the
basic body 4 - 24 weld seam
Claims (2)
1. Piston (1) for an internal combustion engine,
having an essentially cylindrical, forged basic body (4) made of aluminum, whose one face forms a piston head (5),
having pin bosses (8) with pin bores (3) disposed on the underside of the basic body (4) that faces away from the piston head (5),
having skirt elements (9) that connect the pin bosses (8) with one another,
having a ring element (6) disposed in the radially outer edge region of the piston head (5), which forms a ring-shaped cooling channel (22) with the basic body (4),
wherein
the ring element (6) consists of cast aluminum and has a ring insert (11) for a compression ring,
that the ring element (6) is connected with the basic body (4) by way of a screw connection that consists of an inside thread (19) disposed on a side of the ring element (6) that lies radially inside, and an outside thread (18) that matches the former, disposed in the region of the mantle surface (13) of the basic body (4) on the piston head side, and
that the end of the screw connection (18, 19) on the piston head side is sealed by means of a weld seam (4).
2. Piston (1) for an internal combustion engine according to claim 1 , wherein the ring insert (11) consists of Ni resist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10340292A DE10340292A1 (en) | 2003-09-02 | 2003-09-02 | Piston for an internal combustion engine |
DE103402926 | 2003-09-02 | ||
PCT/DE2004/001938 WO2005024216A1 (en) | 2003-09-02 | 2004-09-01 | Piston for an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060278180A1 true US20060278180A1 (en) | 2006-12-14 |
Family
ID=34258322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/570,104 Abandoned US20060278180A1 (en) | 2003-09-02 | 2004-09-01 | Piston for an internal combustion engine |
Country Status (8)
Country | Link |
---|---|
US (1) | US20060278180A1 (en) |
EP (1) | EP1664515A1 (en) |
JP (1) | JP2007504388A (en) |
KR (1) | KR20070020171A (en) |
CN (1) | CN1842648A (en) |
BR (1) | BRPI0414071A (en) |
DE (1) | DE10340292A1 (en) |
WO (1) | WO2005024216A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090158925A1 (en) * | 2007-12-20 | 2009-06-25 | Rainer Scharp | Method for attaching a ring element to a piston for an internal combustion engine |
US20090194059A1 (en) * | 2007-12-20 | 2009-08-06 | Peter Grahle | Piston for an internal combustion engine and method for its production |
US20110168016A1 (en) * | 2007-08-02 | 2011-07-14 | Achim Fedyna | Assembled piston |
US20120037112A1 (en) * | 2009-11-06 | 2012-02-16 | Florin Muscas | Steel piston with cooling gallery and method of construction thereof |
CN103527467A (en) * | 2013-10-27 | 2014-01-22 | 天津市仕杰达能源技术开发有限公司 | Composite piston used for piston pump and provided with seal ring convenient to replace |
US20160201597A1 (en) * | 2015-01-12 | 2016-07-14 | General Electric Company | Piston assembly for a reciprocating engine |
CN108087141A (en) * | 2017-12-08 | 2018-05-29 | 湖南江滨机器(集团)有限责任公司 | A kind of steel pistons and its manufacturing method |
US10590884B2 (en) | 2009-11-06 | 2020-03-17 | Tenneco Inc | Steel piston with cooling gallery and method of construction thereof |
US10927786B1 (en) | 2019-10-30 | 2021-02-23 | Mahle International Gmbh | Bi-metallic piston ring carrier |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE365272T1 (en) * | 2005-05-04 | 2007-07-15 | Pistal Racing S R L | HIGH DENSITY METAL ALLOY PISTON FOR AN INTERNAL COMBUSTION ENGINE AND METHOD FOR PRODUCING SUCH A PISTON |
DE102005044597A1 (en) * | 2005-09-17 | 2007-03-29 | Mahle International Gmbh | Piston for an internal combustion engine |
US20070295299A1 (en) * | 2006-06-12 | 2007-12-27 | Mahle Technology, Inc. | Piston for a combustion engine |
WO2009079989A2 (en) * | 2007-12-20 | 2009-07-02 | Mahle International Gmbh | Method for fixing an annular element on a piston for an internal combustion engine |
DE102010052578A1 (en) * | 2010-11-25 | 2012-05-31 | Daimler Ag | Piston for an internal combustion engine |
DE102012215300A1 (en) | 2012-08-29 | 2014-03-06 | Federal-Mogul Nürnberg GmbH | Steel/aluminum piston, used in motor, includes cooling channel and piston parts connected to along triangular weld seam produced by welding process, where seam is directed to cooling channel and cavity is formed by melting welding bead |
MX2015003487A (en) * | 2012-09-27 | 2015-09-25 | Ks Kolbenschmidt Gmbh | Piston of two-piece construction for an internal combustion engine. |
CN103291912B (en) * | 2013-06-28 | 2016-12-28 | 濮阳市亚利机械制造有限公司 | Special piston for air cannon |
CN104747312A (en) * | 2015-02-16 | 2015-07-01 | 山东滨州渤海活塞股份有限公司 | Internal combustion engine piston with internal cooling oil cavity structure and internal combustion engine |
DE102016202420A1 (en) * | 2016-02-17 | 2017-08-17 | Hirschvogel Umformtechnik Gmbh | Piston for internal combustion engine |
US10648425B2 (en) * | 2017-08-23 | 2020-05-12 | Tenneco Inc. | Piston with broad ovate gallery |
US10926362B2 (en) | 2018-12-13 | 2021-02-23 | Caterpillar Inc. | Remanufactured engine piston and method |
Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2159989A (en) * | 1937-04-19 | 1939-05-30 | Gen Motors Corp | Welded two-piece light alloy piston |
US2244008A (en) * | 1939-06-16 | 1941-06-03 | Gen Motors Corp | Piston construction |
US2772933A (en) * | 1955-06-22 | 1956-12-04 | Alco Products Inc | Pistons |
US3430969A (en) * | 1966-05-25 | 1969-03-04 | Trw Inc | Piston with ring groove reinforcement |
US4383509A (en) * | 1978-06-30 | 1983-05-17 | M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft | Piston for internal combustion engines |
US4548127A (en) * | 1981-05-08 | 1985-10-22 | Dunn Stephen J | Piston for internal combustion engine |
US4651631A (en) * | 1984-05-30 | 1987-03-24 | Ae Plc | Manufacture of pistons |
US4662326A (en) * | 1984-08-16 | 1987-05-05 | Mahle Gmbh | Cast piston with fiber-reinforcement |
US4969433A (en) * | 1988-08-08 | 1990-11-13 | Sanshin Kogyo Kabushiki Kaisha | Piston for internal combustion engine |
US5056681A (en) * | 1988-09-28 | 1991-10-15 | Howes James P | Prize holding container assemblies |
US5388129A (en) * | 1993-09-01 | 1995-02-07 | Westinghouse Electric Corporation | Apparatus and method for radiographic inspection of welds |
US5511521A (en) * | 1993-11-26 | 1996-04-30 | Mahle Gmbh | Light-alloy piston with a combustion bowl |
US6003479A (en) * | 1997-05-12 | 1999-12-21 | Evans; Mark M. | Piston construction |
US6129236A (en) * | 1999-02-23 | 2000-10-10 | Otkrytoe Aktsionernoe Obschestvo Nauchno-Proizvodstvennoe Obiedinenie "Energomash" Imeni Akademika V.P. Glushko | Tank for the liquid storage and expulsion |
US6216585B1 (en) * | 1998-04-30 | 2001-04-17 | Veejay Development Inc. | Carbon-carbon engine components and method of fabrication |
US20040245768A1 (en) * | 2001-10-19 | 2004-12-09 | Yvan Giacomelli | Bulkhead assembly for use in pipe-in-pipe systems |
US6938537B2 (en) * | 2003-06-07 | 2005-09-06 | Mahle Gmbh | Piston for an internal combustion engine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1542230A (en) * | 1977-01-20 | 1979-03-14 | Wellworthy Ltd | Pistons |
JP2908297B2 (en) * | 1995-11-24 | 1999-06-21 | イズミ工業株式会社 | Piston casting method |
-
2003
- 2003-09-02 DE DE10340292A patent/DE10340292A1/en not_active Withdrawn
-
2004
- 2004-09-01 EP EP04786700A patent/EP1664515A1/en active Pending
- 2004-09-01 WO PCT/DE2004/001938 patent/WO2005024216A1/en active Application Filing
- 2004-09-01 KR KR1020067004117A patent/KR20070020171A/en not_active Application Discontinuation
- 2004-09-01 BR BRPI0414071-0A patent/BRPI0414071A/en not_active IP Right Cessation
- 2004-09-01 JP JP2006525040A patent/JP2007504388A/en active Pending
- 2004-09-01 CN CNA2004800247456A patent/CN1842648A/en active Pending
- 2004-09-01 US US10/570,104 patent/US20060278180A1/en not_active Abandoned
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2159989A (en) * | 1937-04-19 | 1939-05-30 | Gen Motors Corp | Welded two-piece light alloy piston |
US2244008A (en) * | 1939-06-16 | 1941-06-03 | Gen Motors Corp | Piston construction |
US2772933A (en) * | 1955-06-22 | 1956-12-04 | Alco Products Inc | Pistons |
US3430969A (en) * | 1966-05-25 | 1969-03-04 | Trw Inc | Piston with ring groove reinforcement |
US4383509A (en) * | 1978-06-30 | 1983-05-17 | M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft | Piston for internal combustion engines |
US4548127A (en) * | 1981-05-08 | 1985-10-22 | Dunn Stephen J | Piston for internal combustion engine |
US4651631A (en) * | 1984-05-30 | 1987-03-24 | Ae Plc | Manufacture of pistons |
US4662326A (en) * | 1984-08-16 | 1987-05-05 | Mahle Gmbh | Cast piston with fiber-reinforcement |
US4969433A (en) * | 1988-08-08 | 1990-11-13 | Sanshin Kogyo Kabushiki Kaisha | Piston for internal combustion engine |
US5056681A (en) * | 1988-09-28 | 1991-10-15 | Howes James P | Prize holding container assemblies |
US5388129A (en) * | 1993-09-01 | 1995-02-07 | Westinghouse Electric Corporation | Apparatus and method for radiographic inspection of welds |
US5511521A (en) * | 1993-11-26 | 1996-04-30 | Mahle Gmbh | Light-alloy piston with a combustion bowl |
US6003479A (en) * | 1997-05-12 | 1999-12-21 | Evans; Mark M. | Piston construction |
US6216585B1 (en) * | 1998-04-30 | 2001-04-17 | Veejay Development Inc. | Carbon-carbon engine components and method of fabrication |
US6129236A (en) * | 1999-02-23 | 2000-10-10 | Otkrytoe Aktsionernoe Obschestvo Nauchno-Proizvodstvennoe Obiedinenie "Energomash" Imeni Akademika V.P. Glushko | Tank for the liquid storage and expulsion |
US20040245768A1 (en) * | 2001-10-19 | 2004-12-09 | Yvan Giacomelli | Bulkhead assembly for use in pipe-in-pipe systems |
US6938537B2 (en) * | 2003-06-07 | 2005-09-06 | Mahle Gmbh | Piston for an internal combustion engine |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110168016A1 (en) * | 2007-08-02 | 2011-07-14 | Achim Fedyna | Assembled piston |
US20090194059A1 (en) * | 2007-12-20 | 2009-08-06 | Peter Grahle | Piston for an internal combustion engine and method for its production |
US7971355B2 (en) | 2007-12-20 | 2011-07-05 | Mahle International Gmbh | Method for attaching a ring element to a piston for an internal combustion engine |
US8074617B2 (en) | 2007-12-20 | 2011-12-13 | Mahle International Gmbh | Piston for an internal combustion engine and method for its production |
US20090158925A1 (en) * | 2007-12-20 | 2009-06-25 | Rainer Scharp | Method for attaching a ring element to a piston for an internal combustion engine |
US8950375B2 (en) | 2007-12-20 | 2015-02-10 | Mahle International Gmbh | Piston for an internal combustion engine |
US9970384B2 (en) * | 2009-11-06 | 2018-05-15 | Federal-Mogul Llc | Steel piston with cooling gallery and method of construction thereof |
US20120037112A1 (en) * | 2009-11-06 | 2012-02-16 | Florin Muscas | Steel piston with cooling gallery and method of construction thereof |
US10590884B2 (en) | 2009-11-06 | 2020-03-17 | Tenneco Inc | Steel piston with cooling gallery and method of construction thereof |
CN103527467A (en) * | 2013-10-27 | 2014-01-22 | 天津市仕杰达能源技术开发有限公司 | Composite piston used for piston pump and provided with seal ring convenient to replace |
US9845765B2 (en) * | 2015-01-12 | 2017-12-19 | General Electric Company | Piston assembly for a reciprocating engine |
US20160201597A1 (en) * | 2015-01-12 | 2016-07-14 | General Electric Company | Piston assembly for a reciprocating engine |
CN108087141A (en) * | 2017-12-08 | 2018-05-29 | 湖南江滨机器(集团)有限责任公司 | A kind of steel pistons and its manufacturing method |
US10927786B1 (en) | 2019-10-30 | 2021-02-23 | Mahle International Gmbh | Bi-metallic piston ring carrier |
Also Published As
Publication number | Publication date |
---|---|
WO2005024216A1 (en) | 2005-03-17 |
CN1842648A (en) | 2006-10-04 |
BRPI0414071A (en) | 2006-10-24 |
KR20070020171A (en) | 2007-02-20 |
JP2007504388A (en) | 2007-03-01 |
DE10340292A1 (en) | 2005-04-14 |
EP1664515A1 (en) | 2006-06-07 |
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