WO2006120138A1 - Innenzahnrad-kraftstoffpump - Google Patents
Innenzahnrad-kraftstoffpump Download PDFInfo
- Publication number
- WO2006120138A1 WO2006120138A1 PCT/EP2006/061997 EP2006061997W WO2006120138A1 WO 2006120138 A1 WO2006120138 A1 WO 2006120138A1 EP 2006061997 W EP2006061997 W EP 2006061997W WO 2006120138 A1 WO2006120138 A1 WO 2006120138A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- rotor
- fuel pump
- stage
- electric motor
- Prior art date
Links
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
- 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
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
-
- 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
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C15/0073—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- 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
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
-
- 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
- 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
- F04C2240/00—Components
- F04C2240/60—Shafts
-
- 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
- Y10T29/49229—Prime mover or fluid pump making
Definitions
- the invention relates to a fuel pump with a housing, an electric motor arranged in the housing, consisting of a stator and a rotor having a shaft, wherein the shaft extends into the region of a pumping stage and penetrates it.
- G rotor pumps Such fuel pumps have long been prior art and therefore known. As pumping stages of these fuel pumps, positive displacement pumps, in particular G rotor pumps, have proven themselves.
- the displacement pumps used as G-rotor pumps consist of an inner rotor and an outer rotor, wherein the inner rotor is driven by the electric motor. Due to the pressures generated by a G-rotor pump, high forces occur in a G-rotor pump.
- the connection of the inner rotor with the electric motor therefore takes place via a coupling.
- the clutch is arranged on the shaft of the electric motor and has a plurality of aligned in the direction of the inner rotor and parallel to the shaft driver, which engage in recesses of the inner rotor. About these drivers, the inner rotor is rotated.
- This coupling can either be a separate component or part of the plastic encapsulation of the rotor. In the latter case, the coupling is formed integrally with the rotor.
- the disadvantage here is the formation of the coupling as a plastic component. Due to the forces occurring during operation of the G-rotor pump, a coupling made of plastic must have a relatively large number of drivers in order to reliably prevent damage to the clutch as a result of the forces occurring during operation. But even with a trained as a separate component coupling made of metal with a smaller number of carriers has the disadvantage that an additional component is present, which provides Herge ⁇ and must be mounted.
- the present invention is therefore an object of the invention to provide a fuel pump of the type mentioned, which is particularly cost-effective and dispenses in particular with additional ⁇ Liche or complicated designed components.
- the object is achieved in that the pumping stage is designed as a G-rotor stage that the shaft of the electric motor at least in the region in which the Wel ⁇ le penetrates the inner rotor has at least two flats at its periphery and that the inner rotor of the G - Rotor stage has a similarly shaped recess.
- the two flats on the shaft are particularly easy to produce, if they are opposite to the circumference of the shaft and thus aligned parallel to each other.
- the loads occurring in the G-rotor pump are counteracted in a further embodiment when the shaft has three flats in the region with which it penetrates the inner rotor.
- the formation of the corresponding shaft portion has been found to be advantageous as a polygon or spline.
- Fig. 1 a section through a force ⁇ fuel pump according to the invention
- Fig. 2 a second imple mentation form in a section AA of Fig. 1 and
- FIG. 3 shows a third embodiment in a section A-A from FIG. 1.
- the fuel pump shown in Fig. 1 consists of an electric motor 1 and designed as a G-pump rotor pump stage 2. On the side facing away from the electric motor 1 side of the pumping stage 2, a lid 3 is arranged with a fuel inlet 4. On the opposite side of the fuel pump, a connecting piece 5 closes off the fuel pump. The lid 3 and the connector 5 are connected to a common housing 5.
- the electric motor 1 has a rotor 8 arranged in a stator 7 with a shaft 9. An area 10 of the shaft 9 passes through the G-rotor pump 2.
- the G-rotor pump 2 consists of two housing plates 11, 12 which are spaced apart by a spacer ring 13 are arranged.
- FIG. 1 shows, respectively, of FIG. 1 differing profiles of the shaft 9 in the region 10.
- Fig. 2 has the Wel ⁇ le 9 is a polygonal profile.
- the shaft 9 is formed in the region 10 as a splined shaft 19 which engages in a correspondingly shaped receptacle 18 of the inner ⁇ runner 15.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008510542A JP2008540910A (ja) | 2005-05-10 | 2006-05-03 | 内接歯車式燃料ポンプ |
US11/913,606 US20090016912A1 (en) | 2005-05-10 | 2006-05-03 | Internal Gear Fuel Pump |
EP06754971A EP1880108A1 (de) | 2005-05-10 | 2006-05-03 | Innenzahnrad-kraftstoffpump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005021597A DE102005021597A1 (de) | 2005-05-10 | 2005-05-10 | Kraftstoffpumpe |
DE102005021597.1 | 2005-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006120138A1 true WO2006120138A1 (de) | 2006-11-16 |
Family
ID=36658645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/061997 WO2006120138A1 (de) | 2005-05-10 | 2006-05-03 | Innenzahnrad-kraftstoffpump |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090016912A1 (de) |
EP (1) | EP1880108A1 (de) |
JP (1) | JP2008540910A (de) |
KR (1) | KR20080011380A (de) |
CN (1) | CN101171426A (de) |
DE (1) | DE102005021597A1 (de) |
WO (1) | WO2006120138A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602007011829D1 (de) * | 2007-05-01 | 2011-02-17 | Superpar Otomotiv San Ve Tic A S | Neuheit bei elektrischen kraftstoffpumpen für brennkraftmaschinen |
JP4535190B2 (ja) | 2008-02-07 | 2010-09-01 | 株式会社デンソー | 燃料ポンプ |
DE102008043991A1 (de) * | 2008-11-21 | 2010-05-27 | Thielert Aircraft Engines Gmbh | Kraftstoffpumpe für Verbrennungsmotoren |
FR2943744A1 (fr) * | 2009-03-24 | 2010-10-01 | Inergy Automotive Systems Res | Pompe rotative |
DE102011089609A1 (de) * | 2011-12-22 | 2013-06-27 | Robert Bosch Gmbh | Innenzahnradpumpe |
DE102013223999A1 (de) * | 2013-11-25 | 2015-05-28 | Mahle International Gmbh | Flügelzellenpumpe oder Pendelschieberpumpe |
DE102016220641A1 (de) * | 2016-10-20 | 2018-04-26 | Continental Automotive Gmbh | Kraftstoffpumpe |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2169460A (en) * | 1938-12-21 | 1939-08-15 | Lyle E Broughton | Socket head screw and method of making the same |
JPH0579465A (ja) * | 1991-07-08 | 1993-03-30 | Mitsubishi Materials Corp | 内接型流体圧装置 |
US5425625A (en) * | 1994-03-24 | 1995-06-20 | Lenco Enterprises Co., Ltd. | Car-used electric fuel pump |
US5482437A (en) * | 1993-11-03 | 1996-01-09 | Ingersoll-Rand Company | Method for preventing fretting and galling in a polygon coupling |
US5961276A (en) * | 1997-05-09 | 1999-10-05 | Robert Bosch Gmbh | Aggregate for feeding a fuel from tank to an internal combustion engine of a motor vehicle |
DE29916108U1 (de) * | 1999-09-15 | 2001-01-25 | ASF THOMAS INDUSTRIES GMBH, 87700 Memmingen | Pumpe |
EP1219835A2 (de) * | 2000-12-25 | 2002-07-03 | Mitsuba Corporation | Innenzahnradpumpe |
JP2005016448A (ja) * | 2003-06-26 | 2005-01-20 | Mitsubishi Materials Corp | 内接型ギヤポンプのインナーロータ |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE25291E (en) * | 1956-06-08 | 1962-12-04 | Fluid pressure device and valve | |
US4036031A (en) * | 1974-08-02 | 1977-07-19 | Woodling George V | Universal connection means in an orbital fluid pressure device |
JP2699390B2 (ja) * | 1988-03-28 | 1998-01-19 | アイシン精機株式会社 | 内接歯車モータ |
ES2019781A6 (es) * | 1990-01-15 | 1991-07-01 | Weber Espana Sa | Bomba impulsora de gasolina para sistemas de inyeccion de motores de explision. |
JP2546407Y2 (ja) * | 1991-02-19 | 1997-09-03 | 株式会社ユニシアジェックス | オイルポンプ |
DE19726794A1 (de) * | 1997-06-24 | 1999-01-07 | Elektra Beckum Ag | Wasser-Hochdruckreinigungsgerät |
US6739850B2 (en) * | 2001-10-25 | 2004-05-25 | Kyosan Denki Co., Ltd. | Motor-type fuel pump for vehicle |
DE10224784A1 (de) * | 2002-06-04 | 2003-12-18 | Siemens Ag | G-Rotorpumpe |
US6679692B1 (en) * | 2002-07-12 | 2004-01-20 | James J. Feuling | Oil pump |
JP2005016450A (ja) * | 2003-06-26 | 2005-01-20 | Mitsubishi Materials Corp | 内接型ギヤポンプのインナーロータ |
-
2005
- 2005-05-10 DE DE102005021597A patent/DE102005021597A1/de not_active Withdrawn
-
2006
- 2006-05-03 WO PCT/EP2006/061997 patent/WO2006120138A1/de not_active Application Discontinuation
- 2006-05-03 US US11/913,606 patent/US20090016912A1/en not_active Abandoned
- 2006-05-03 KR KR1020077024543A patent/KR20080011380A/ko not_active Application Discontinuation
- 2006-05-03 JP JP2008510542A patent/JP2008540910A/ja active Pending
- 2006-05-03 CN CNA2006800158979A patent/CN101171426A/zh active Pending
- 2006-05-03 EP EP06754971A patent/EP1880108A1/de not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2169460A (en) * | 1938-12-21 | 1939-08-15 | Lyle E Broughton | Socket head screw and method of making the same |
JPH0579465A (ja) * | 1991-07-08 | 1993-03-30 | Mitsubishi Materials Corp | 内接型流体圧装置 |
US5482437A (en) * | 1993-11-03 | 1996-01-09 | Ingersoll-Rand Company | Method for preventing fretting and galling in a polygon coupling |
US5425625A (en) * | 1994-03-24 | 1995-06-20 | Lenco Enterprises Co., Ltd. | Car-used electric fuel pump |
US5961276A (en) * | 1997-05-09 | 1999-10-05 | Robert Bosch Gmbh | Aggregate for feeding a fuel from tank to an internal combustion engine of a motor vehicle |
DE29916108U1 (de) * | 1999-09-15 | 2001-01-25 | ASF THOMAS INDUSTRIES GMBH, 87700 Memmingen | Pumpe |
EP1219835A2 (de) * | 2000-12-25 | 2002-07-03 | Mitsuba Corporation | Innenzahnradpumpe |
JP2005016448A (ja) * | 2003-06-26 | 2005-01-20 | Mitsubishi Materials Corp | 内接型ギヤポンプのインナーロータ |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 017, no. 407 (M - 1454) 29 July 1993 (1993-07-29) * |
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05) * |
Also Published As
Publication number | Publication date |
---|---|
DE102005021597A1 (de) | 2006-11-16 |
EP1880108A1 (de) | 2008-01-23 |
CN101171426A (zh) | 2008-04-30 |
KR20080011380A (ko) | 2008-02-04 |
JP2008540910A (ja) | 2008-11-20 |
US20090016912A1 (en) | 2009-01-15 |
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