US3801241A - Pump impeller construction - Google Patents
Pump impeller construction Download PDFInfo
- Publication number
- US3801241A US3801241A US00330759A US3801241DA US3801241A US 3801241 A US3801241 A US 3801241A US 00330759 A US00330759 A US 00330759A US 3801241D A US3801241D A US 3801241DA US 3801241 A US3801241 A US 3801241A
- Authority
- US
- United States
- Prior art keywords
- blank
- shaft
- cup
- circular portion
- flange
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/04—PTFE [PolyTetraFluorEthylene]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49833—Punching, piercing or reaming part by surface of second part
- Y10T29/49835—Punching, piercing or reaming part by surface of second part with shaping
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49861—Sizing mating parts during final positional association
Definitions
- Teflon is a very good material for gear pump impellersbecause of its low co-efficient of friction, chemical inertness and ability to withstand high temperatures and extreme temperature variations.
- a portion of the plastic is confined between a rigid central shaft spline and a cup rotatable with the shaft so that the plastic cannot flow without two-dimensional or threedimensional distortion or tearing, both of which are resisted by the plastic.
- Teflon advantages of the use of Teflon are obtained by practice of the present invention. Among these advantages are the fact that the material has a low coefficient of friction, is chemically inert and has the ability to withstand not only high temperatures but extreme temperature variation.
- FIG. 1 is an exploded perspective view of -a gear blank, shaft and cups in accordance with the present invention.
- FIG. 2 is an enlarged vertical sectional view through the assembled gear blank and shaft.
- FIG. 3 is an end elevational view of a pump in which gears of the present invention are installed on their shafts, partially broken away to reveal internal construction.
- FIG. 4 is a sectional view taken substantially along the line 4-4 of FIG. 3.
- FIG. 3 and 4 show a typical installation for a pair of gears fabricated in accordance with the present invention. It will be understood that the structure of FIGS. 3 and 4 is merely illustrative of one environment using the invention and that the invention may be adapted 'to other environments.
- a casing 31 has pump inlet and outlet 32 and 33 on opposite sides with pump chamber 34 between the two.
- a pump impeller comprising a rigid shaft having a non-circular portion, a blank of Teflon having a central bore shaped to fit over said non-circular portion with a tight fit, and at least one cup of rigid material having an annular end formed with anaperture to fit on the end of said shaft near said non-circular portion with a tight fit and having an intumed cylindrical flange having an inside diameter greater than said non-circular portion and an outside diameter substantially less than that of said blank, said flange forced into said blank from one end thereof, a portion of said blank being confined between said non-circular portion and said flange.
- a method of fabricating a gear blank and shaft combination comprising providing a shaft having a non-circular cross-section portion and round crosssection ends at either side of said non-circular portion, forcing an aperture blank of Teflon onto said noncircular portion, forcing over either of said ends a cup having an annular disk and inturned flanges so that said flanges are embedded in grooves formed in said blank of largerdiameter than the size of said non-circular portion and some of the material of said blank is confined between said non-circular portion and said been embedded in said blank.
Abstract
Description
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US33075973A | 1973-02-08 | 1973-02-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3801241A true US3801241A (en) | 1974-04-02 |
Family
ID=23291200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00330759A Expired - Lifetime US3801241A (en) | 1973-02-08 | 1973-02-08 | Pump impeller construction |
Country Status (1)
Country | Link |
---|---|
US (1) | US3801241A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2357728A1 (en) * | 1976-07-10 | 1978-02-03 | Beinlich Gunter | GEAR MACHINE WORKING AS A PUMP OR AS A MOTOR |
DE3342385A1 (en) * | 1983-11-24 | 1985-06-05 | Montblanc-Simplo Gmbh, 2000 Hamburg | Gear pump |
US4747762A (en) * | 1983-01-10 | 1988-05-31 | Fairbairn International Pty. Ltd. | Fluid machine |
US4846642A (en) * | 1986-11-08 | 1989-07-11 | Wankel Gmbh | Rotary piston blower with foamed synthetic material surfaces running along roughened metal surfaces |
US5346364A (en) * | 1989-02-06 | 1994-09-13 | Davorin Kapich | Very high speed hydraulic turbine drive |
US5907473A (en) * | 1997-04-04 | 1999-05-25 | Raytheon Company | Environmentally isolated enclosure for electronic components |
US5943211A (en) * | 1997-04-18 | 1999-08-24 | Raytheon Company | Heat spreader system for cooling heat generating components |
US5961310A (en) * | 1997-07-25 | 1999-10-05 | Mcclure; Troy A. | External combustion rotary engine |
US6592349B2 (en) * | 1999-09-03 | 2003-07-15 | Datron-Electronic Gmbh | Method for the metered discharge of a string of a viscous medium and feedpump for discharging a string of a viscous medium |
US20060228173A1 (en) * | 2005-04-12 | 2006-10-12 | Honeywell International Inc. | Grease seal cup to retain lubrication for life extension in existing splined joint |
US20070196229A1 (en) * | 2006-02-20 | 2007-08-23 | Baker Hughes Incorporated | Gear pump for pumping abrasive well fluid |
US20090131928A1 (en) * | 1998-01-14 | 2009-05-21 | Respiratory Diagnostic, Inc. | GERD treatment apparatus and method |
CN102650283A (en) * | 2011-02-25 | 2012-08-29 | 哈米尔顿森德斯特兰德公司 | Coupling shaft for gear pump |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1400032A (en) * | 1919-01-16 | 1921-12-13 | Westinghouse Electric & Mfg Co | Self-tightening propeller-hub |
US2172977A (en) * | 1937-10-12 | 1939-09-12 | Gen Electric | Push-on type handle |
US2663263A (en) * | 1949-08-19 | 1953-12-22 | Submerged Comb Company Of Amer | Rotary pump |
US2712792A (en) * | 1950-06-28 | 1955-07-12 | Scott Atwater Mfg Co Inc | Pump structure |
US2948227A (en) * | 1958-11-19 | 1960-08-09 | Lord Mfg Co | Pump |
US2966860A (en) * | 1957-04-03 | 1961-01-03 | Lobee Pump & Machinery Co | Pump for corrosive fluids |
-
1973
- 1973-02-08 US US00330759A patent/US3801241A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1400032A (en) * | 1919-01-16 | 1921-12-13 | Westinghouse Electric & Mfg Co | Self-tightening propeller-hub |
US2172977A (en) * | 1937-10-12 | 1939-09-12 | Gen Electric | Push-on type handle |
US2663263A (en) * | 1949-08-19 | 1953-12-22 | Submerged Comb Company Of Amer | Rotary pump |
US2712792A (en) * | 1950-06-28 | 1955-07-12 | Scott Atwater Mfg Co Inc | Pump structure |
US2966860A (en) * | 1957-04-03 | 1961-01-03 | Lobee Pump & Machinery Co | Pump for corrosive fluids |
US2948227A (en) * | 1958-11-19 | 1960-08-09 | Lord Mfg Co | Pump |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2357728A1 (en) * | 1976-07-10 | 1978-02-03 | Beinlich Gunter | GEAR MACHINE WORKING AS A PUMP OR AS A MOTOR |
US4747762A (en) * | 1983-01-10 | 1988-05-31 | Fairbairn International Pty. Ltd. | Fluid machine |
DE3342385A1 (en) * | 1983-11-24 | 1985-06-05 | Montblanc-Simplo Gmbh, 2000 Hamburg | Gear pump |
US4846642A (en) * | 1986-11-08 | 1989-07-11 | Wankel Gmbh | Rotary piston blower with foamed synthetic material surfaces running along roughened metal surfaces |
US5346364A (en) * | 1989-02-06 | 1994-09-13 | Davorin Kapich | Very high speed hydraulic turbine drive |
US5907473A (en) * | 1997-04-04 | 1999-05-25 | Raytheon Company | Environmentally isolated enclosure for electronic components |
US6139361A (en) * | 1997-04-04 | 2000-10-31 | Raytheon Company | Hermetic connector for a closed compartment |
US5943211A (en) * | 1997-04-18 | 1999-08-24 | Raytheon Company | Heat spreader system for cooling heat generating components |
US5961310A (en) * | 1997-07-25 | 1999-10-05 | Mcclure; Troy A. | External combustion rotary engine |
US20090131928A1 (en) * | 1998-01-14 | 2009-05-21 | Respiratory Diagnostic, Inc. | GERD treatment apparatus and method |
US6592349B2 (en) * | 1999-09-03 | 2003-07-15 | Datron-Electronic Gmbh | Method for the metered discharge of a string of a viscous medium and feedpump for discharging a string of a viscous medium |
US20060228173A1 (en) * | 2005-04-12 | 2006-10-12 | Honeywell International Inc. | Grease seal cup to retain lubrication for life extension in existing splined joint |
US7354216B2 (en) | 2005-04-12 | 2008-04-08 | Honeywell International, Inc. | Grease seal cup to retain lubrication for life extension in existing splined joint |
US20080214315A1 (en) * | 2005-04-12 | 2008-09-04 | Honeywell International Inc. | Method for retaining lubrication for life extension in existing splined joint |
US8584342B2 (en) | 2005-04-12 | 2013-11-19 | Honeywell International, Inc. | Method for retaining lubrication for life extension in existing splined joint |
US20070196229A1 (en) * | 2006-02-20 | 2007-08-23 | Baker Hughes Incorporated | Gear pump for pumping abrasive well fluid |
CN102650283A (en) * | 2011-02-25 | 2012-08-29 | 哈米尔顿森德斯特兰德公司 | Coupling shaft for gear pump |
US20120219447A1 (en) * | 2011-02-25 | 2012-08-30 | Satish Shantilal Shah | Coupling shaft for gear pump |
US8801410B2 (en) * | 2011-02-25 | 2014-08-12 | Hamilton Sundstrand Corporation | Coupling shaft for gear pump |
CN102650283B (en) * | 2011-02-25 | 2016-03-16 | 哈米尔顿森德斯特兰德公司 | For the joining shaft of gear pump |
US9546655B2 (en) | 2011-02-25 | 2017-01-17 | Hamilton Sundstrand Corporation | Coupling shaft for gear pump |
US10024319B2 (en) | 2011-02-25 | 2018-07-17 | Hamilton Sundstrand Corporation | Method for lubricating a coupling shaft for gear pump |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: WELLS FARGO BANK, N.A. Free format text: SECURITY INTEREST;ASSIGNOR:MICROPUMP CORPORATION, A CA CORP.;REEL/FRAME:004068/0951 Effective date: 19820610 |
|
AS | Assignment |
Owner name: MICROPUMP CORPORATION, WASHINGTON Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WELLS FARGO BANK, N.A.;REEL/FRAME:007492/0463 Effective date: 19950427 |
|
AS | Assignment |
Owner name: MC ACQUISITION CORP., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MICROPUMP CORPORATION;REEL/FRAME:007541/0031 Effective date: 19950501 |
|
AS | Assignment |
Owner name: MICROPUMP, INC., WASHINGTON Free format text: CHANGE OF NAME;ASSIGNOR:MC ACQUISITION CORP.;REEL/FRAME:007521/0146 Effective date: 19950502 |