EP1102934B1 - Zahnradpumpe - Google Patents
Zahnradpumpe Download PDFInfo
- Publication number
- EP1102934B1 EP1102934B1 EP99936564A EP99936564A EP1102934B1 EP 1102934 B1 EP1102934 B1 EP 1102934B1 EP 99936564 A EP99936564 A EP 99936564A EP 99936564 A EP99936564 A EP 99936564A EP 1102934 B1 EP1102934 B1 EP 1102934B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear pump
- pressure
- space
- pump according
- filter
- 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
- 238000013016 damping Methods 0.000 claims description 5
- 230000010349 pulsation Effects 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 210000003734 kidney Anatomy 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 235000021185 dessert Nutrition 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
- F04C15/0049—Equalization of pressure pulses
-
- 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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
-
- 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
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/005—Removing contaminants, deposits or scale from the pump; Cleaning
Definitions
- the present invention relates to a gear pump, in particular a Power steering pump for the drive unit of a motor vehicle, with a drive connected is.
- Gear pumps find one diverse use in modern motor vehicles.
- a generic gear pump as described in DE-A1-195 24 965, shows a gear pump connected to a drive, which has a damper space, a Suction chamber, has an oil inlet and an oil drain.
- the gear pump is in one Housing is integrated and is used both from Tilgerraum and from the suction chamber enclosed.
- the Tilgerraum extends in the radial direction to the outer Limits of the pressure field, an area in which a certain pressure prevails and in axial direction over the entire housing length. Despite the execution with the Tilgerraum and the suction chamber, is the pulsation damping and the Pressure stabilization inadequate.
- DE-A1-196 04 517 shows a gear pump, in particular for Powershift transmission of motor vehicles is used and in the two in mesh mutually cooperating gears are rotatably mounted in a pump housing. Between a suckling kidney and a pressure kidney lies an area in which between the Teeth of the gears lying tooth chambers by one, the gears surrounding Housing contour are sealed against each other.
- a dessert is for the Gear pump provided, which is characterized by this at least one tooth chamber in Direction of rotation is separated from the suction kidney and the pressure kidney, supplied with pressure oil can. The tooth chambers, which were not completely filled, are refilled, so that cavitation is avoided.
- a gear pump for the drive unit is a Power steering of a motor vehicle which has a pump housing in which two intermeshing gears are housed, each rotatably on a shaft sit and with a led out of the pump housing shaft, with the Drive unit is connected; in the drive connection between the gear pump and the drive unit is at least a reduction stage provided. Due to the reduction of the high speed of the driving shaft into the small speed of the gear pump will be a noise reduction achieved.
- this known gear pump still has a relatively large volume of construction on.
- Object of the present invention is to provide a gear pump, in particular as Power steering pump can be used to create an improved pulsation damping and Pressure stabilization and thereby a simplified construction and thus a lower Has construction volume, associated with lower production costs and one Possibility of easy running in at the test bench offers.
- the sealed suction chamber ensures a calmed oil supply, so that the Noise is reduced.
- the advantage is a symmetrical Suction through hole and slot from the foreclosed Suction chamber achieved and in addition by the deflection the oil flow on the pressure side a pulse reduction.
- the housing is designated in the the gear pump 2 is integrated.
- 3 is a suitable one Drive referred to, for. B. an electric motor, with the Housing 1 is screwed.
- cylindrical Housing is also a Tilgerraum 4 and a foreclosed Suction chamber 5 is provided, wherein the gear pump 2 from Tilgerraum 4 and are enclosed by the suction chamber 5; the deluge room 4 includes the gear pump 2 on the circumference approximately so far as the inner pressure field of the gear pump reaches and extends over the entire housing length.
- Tilgerraum 4 are also ribs 16 (Fig. 2) for Pulsation damping and pressure field stabilization provided.
- the suction side is divided into the suction chamber 5 in the housing 1, in a filter chamber 17 and the volume of the oil tank 7th
- the sealed suction chamber 5 ensures a calm Oil supply, with the return and the oil flows above described valves outside the foreclosed Swirl suction chamber in the residual volumes.
- the suction chamber 5 extends as the Tilgerraum. 4 over the entire housing length, so that the attached container volume, d. H. the oil tank 7 smaller can.
- the filter chamber 17 is enclosed between the lid 6 and a filter cap 10, but is from the suction chamber. 5 separated.
- a suction valve to Tilgerraum 4 opens into the filter room 17; the filter cap 10 shown only in section is designed such that it fits the rib contour in the Lid sealingly attachable.
- the cover screw connections are arranged inside the filter. This is the filter when entering the gear pump 2 on the test stand removable.
- the oil inlet 9 opens in the attached oil tank 7, wherein a pressure relief valve in the lid 6 is provided is that of the Tilgerraum 4 cums in the oil tank 7, so that the pressure relief valve when running the gear pump 2 is blocked on the test bench.
- 11 denotes a drive shaft of the gear pump 2, 12 a coupling, with 13 (FIG. 4) a suction bore, with 14 a slot and 15 with glasses.
- a central transverse bore consisting of pressure holes in the absorber room and in the gear pump and the equiaxed suction hole 13, is outside the pump center provided at eyeglass height. This results in a symmetrical Sucking the oil through the bore and slot 14 the sealed suction chamber 5; through the additional diversion the oil flow on the pressure side becomes an impulse reduction achieved.
- a pressure filter 19th clipped In the central transverse bore is on the pressure side between Tilgerraum and gear pump, a pressure filter 19th clipped.
- This pressure filter 19 includes a baffle plate 20, so that the flowing from the gear pump 2 pulsating Oil is diverted into the absorber room 4 and only then from the Tilgerraum from the housing 1 can flow. Of the Pressure filter 19 is through the pressure hole in the housing. 1 stuck and clipped.
- the clutch 12 is because of the provided coupling fuse 18 (Fig. 3) captive during assembly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Description
Es zeigen:
- Fig. 1
- einen Schnitt durch das Gehäuse mit eingesetzter Zahnradpumpe,
- Fig. 2
- eine Stirnansicht,
- Fig. 3
- eine vergrösserte Darstellung einer Einzelheit und
- Fig. 4
- eine Variante der in Fig. 3 dargestellten Einzelheit.
- 1
- Gehäuse
- 2
- Zahnradpumpe
- 3
- Antrieb
- 4
- Tilgerraum
- 5
- Saugraum
- 6
- Deckel
- 7
- Ölbehälter
- 8
- Ölablauf
- 9
- Ölzulauf
- 10
- Filterkappe
- 11
- Antriebswelle
- 12
- Kupplung
- 13
- Saugbohrung
- 14
- Schlitz
- 15
- Brille
- 16
- Rippe
- 17
- Filterraum
- 18
- Kupplungssicherung
- 19
- Druckfilter
- 20
- Prallplatte
Claims (10)
- Zahnradpumpe, insbesondere Lenkhelfpumpe für das Antriebsaggregat eines Kraftfahrzeuges, mit folgenden Merkmalen:gekennzeichnet durch das folgende Merkmal:Die Zahnradpumpe ist mit einem Antrieb verbindbar und weist einen Tilgerraum (4) zur Pulsationsdämpfung, einen Saugraum (5), einen Ölzulauf (9) und einen Ölablauf (8) auf;die Zahnradpumpe (2) weist ein sie umhüllendes Gehäuse (1) auf;die Zahnradpumpe (2) weist ein Druckfeld auf, welches den Bereich auf der Druckseite der Zahnradpumpe (2) umfasst, in welchem zwischen den Zähnen der Zahnradpumpe (2), der sie umgebenden inneren Wandung des Gehäuses (1) und den Brillen (15) der Druck aufgebaut wird;die Zahnradpumpe (2) wird sowohl vom Tilgerraum (4) als auch vom Saugraum (5) umschlossen;der Tilgerraum (4) erstreckt sich in radialer Richtung bis an die äußeren Grenzen des Druckfeldes und in axialer Richtung über die gesamte Gehäuselänge;der Saugraum (5) erstreckt sich in axialer Richtung über die gesamte Gehäuselänge.im Tilgerraum (4) sind Rippen (16) zur Pulsationsdämpfung und zur Druckfeldstabilisierung vorgesehen;
- Zahnradpumpe nach Anspruch 1, dadurch ge- kennzeichnet, daß zwischen einem Deckel (6) und einer Filterkappe (10) ein Filterraum (17) vorgesehen ist.
- Zahnradpumpe nach Anspruch 2, dadurch ge- kennzeichnet, dass ein Nachsaugventil für den Tilgerraum (4) im Filterraum (17) mündet.
- Zahnradpumpe nach einem der Ansprüche 1 bis 3, dadurch ge- kennzeichnet, dass der Ölzulauf (9) in den Ölbehälter (7) mündet.
- Zahnradpumpe nach einem der Ansprüche 1 bis 4, dadurch ge- kennzeichnet, dass der Deckel (6) mit einem Druckbegrenzungsventil versehen ist.
- Zahnradpumpe nach einem der Ansprüche 1 bis 5, dadurch ge- kennzeichnet, dass eine zentrale Querbohrung, bestehend aus Druckbohrungen im Tilgerraum (4) und gleichachsig in der Zahnradpumpe, vorgesehen ist.
- Zahnradpumpe nach Anspruch 6, dadurch ge- kennzeichnet, daß die zentrale Querbohrung zusätzlich eine gleichachsige Saugbohrung (13) außerhalb der Pumpenmitte auf Höhe der Brille (15) aufweist.
- Zahnradpumpe nach den Ansprüchen 6 und 7, dadurch ge- kennzeichnet, daß eine Prallplatte (20) in der zentralen Querbohrung so eingebaut wird, daß sie zwischen der Druckbohrung im Tilgerraum (4) und in der Zahnradpumpe (2) vorgesehen ist.
- Zahnradpumpe nach Anspruch 7, dadurch ge- kennzeichnet, daß die Prallplatte (20) Teil eines Druckfilters (19) ist.
- Zahnradpumpe nach einem der Ansprüche 1 bis 9, dadurch ge- kennzeichnet, daß eine Kupplung (12) zwischen einer Antriebswelle (11) der Zahnradpumpe (2) und einem Antrieb (3) verliersicher ausgebildet ist.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833372 | 1998-07-24 | ||
| DE19833372A DE19833372A1 (de) | 1998-07-24 | 1998-07-24 | Zahnradpumpe |
| PCT/EP1999/005121 WO2000005504A1 (de) | 1998-07-24 | 1999-07-17 | Zahnradpumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1102934A1 EP1102934A1 (de) | 2001-05-30 |
| EP1102934B1 true EP1102934B1 (de) | 2005-09-14 |
Family
ID=7875195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99936564A Expired - Lifetime EP1102934B1 (de) | 1998-07-24 | 1999-07-17 | Zahnradpumpe |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6506029B1 (de) |
| EP (1) | EP1102934B1 (de) |
| DE (2) | DE19833372A1 (de) |
| ES (1) | ES2249023T3 (de) |
| WO (1) | WO2000005504A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19942567A1 (de) * | 1999-09-07 | 2001-03-22 | Fluidtech Gmbh | Vorrichtung zum Pumpen von Fluid |
| JP4438519B2 (ja) * | 2004-06-02 | 2010-03-24 | 株式会社ジェイテクト | ポンプ装置 |
| GB0700925D0 (en) | 2007-01-18 | 2007-02-28 | Reckitt Benckiser Nv | Dosage element and a method of manufacturing a dosage element |
| CN107867323B (zh) * | 2016-09-28 | 2019-11-22 | 比亚迪股份有限公司 | 电机油泵总成、转向系统和车辆 |
| FI3676482T3 (fi) * | 2017-08-29 | 2022-12-15 | Kone, johon on järjestetty öljypumppu, ja menetelmä sellaisen koneen käynnistämiseksi | |
| DE102017127675B4 (de) * | 2017-11-23 | 2023-03-23 | HAWE Altenstadt Holding GmbH | Hydraulische Druckversorgungseinheit |
| DE102020129312A1 (de) * | 2019-12-02 | 2021-06-02 | Fte Automotive Gmbh | Flüssigkeitspumpe, insbesondere zur Versorgung eines Getriebes eines Elektro- oder Hybridantriebsmoduls eines Kraftfahrzeugs |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2193504A (en) * | 1937-05-21 | 1940-03-12 | Teesdale Mfg Company | Pump |
| US4174196A (en) * | 1976-07-28 | 1979-11-13 | Hitachi, Ltd. | Screw fluid machine |
| CS220776B2 (en) * | 1977-08-25 | 1983-04-29 | Ivan J Cyphelly | Facility for the lossfree alternation of the conveyed stream of the displacement pump |
| GB2102074B (en) * | 1981-07-18 | 1985-01-30 | Dowty Group Services | Positive-displacement fluid-machines |
| US4752195A (en) * | 1985-01-15 | 1988-06-21 | Zahnradfabrik Friedrichshafen, Ag. | Rotary vane type of pump with elongated damping chambers |
| DE3623421A1 (de) * | 1986-07-11 | 1988-01-14 | Vickers Systems Gmbh | Lenkhilfpumpe |
| DE4120757C2 (de) * | 1990-06-25 | 2000-06-15 | Zahnradfabrik Friedrichshafen | Flügelzellenpumpe |
| DE4308452B4 (de) * | 1993-03-17 | 2005-12-22 | Zf Friedrichshafen Ag | Flügelzellenpumpe |
| US5411376A (en) * | 1993-12-15 | 1995-05-02 | Walbro Corporation | Fuel pump with noise suppression |
| ES2140715T3 (es) * | 1994-11-07 | 2000-03-01 | Hobourn Automotive Ltd | Bomba rotativa y conjunto de motor. |
| FR2735534B1 (fr) * | 1995-06-15 | 1997-08-29 | Hydroperfect Int | Ensemble moteur electrique et pompe hydraulique a grande compacite |
| DE19524965A1 (de) * | 1995-07-08 | 1997-01-09 | Bosch Gmbh Robert | Zahnradmaschine (Pumpe oder Motor) |
| FR2738302B1 (fr) * | 1995-08-30 | 1997-10-10 | Hydroperfect Int | Groupe electro-hydraulique compact |
| DE19533215A1 (de) | 1995-09-08 | 1997-03-13 | Hydraulik Ring Gmbh | Zahnradpumpe |
| DE19604517A1 (de) | 1996-02-08 | 1997-08-14 | Zahnradfabrik Friedrichshafen | Zahnradpumpe, insbesondere für Lastschaltgetriebe von Kraftfahrzeugen |
| DE19627668A1 (de) * | 1996-07-10 | 1998-01-15 | Hydraulik Ring Gmbh | Antriebsvorrichtung, insbesondere als Lenkhilfe für Kraftfahrzeuge |
| JP3667034B2 (ja) * | 1996-07-17 | 2005-07-06 | 光洋精工株式会社 | 電動ポンプ |
| DE19635801B4 (de) * | 1996-09-04 | 2005-04-28 | Zahnradfabrik Friedrichshafen | Hochdruckpumpe mit Arbeitsschiebern |
| JPH1137060A (ja) * | 1997-07-16 | 1999-02-09 | Koyo Seiko Co Ltd | ギヤポンプ |
-
1998
- 1998-07-24 DE DE19833372A patent/DE19833372A1/de not_active Withdrawn
-
1999
- 1999-07-17 EP EP99936564A patent/EP1102934B1/de not_active Expired - Lifetime
- 1999-07-17 ES ES99936564T patent/ES2249023T3/es not_active Expired - Lifetime
- 1999-07-17 WO PCT/EP1999/005121 patent/WO2000005504A1/de not_active Ceased
- 1999-07-17 US US09/744,736 patent/US6506029B1/en not_active Expired - Fee Related
- 1999-07-17 DE DE59912563T patent/DE59912563D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1102934A1 (de) | 2001-05-30 |
| ES2249023T3 (es) | 2006-03-16 |
| US6506029B1 (en) | 2003-01-14 |
| WO2000005504A1 (de) | 2000-02-03 |
| DE19833372A1 (de) | 2000-01-27 |
| DE59912563D1 (de) | 2005-10-20 |
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