EP1503081A1 - Hydropumpe - Google Patents
Hydropumpe Download PDFInfo
- Publication number
- EP1503081A1 EP1503081A1 EP04017316A EP04017316A EP1503081A1 EP 1503081 A1 EP1503081 A1 EP 1503081A1 EP 04017316 A EP04017316 A EP 04017316A EP 04017316 A EP04017316 A EP 04017316A EP 1503081 A1 EP1503081 A1 EP 1503081A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic pump
- housing
- pinion
- suction chamber
- pump according
- 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.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract 2
- 238000007789 sealing Methods 0.000 claims description 17
- 239000000945 filler Substances 0.000 claims description 10
- 239000003921 oil Substances 0.000 description 20
- 230000010349 pulsation Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 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
- 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
- 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
- F04C2/101—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 with a crescent-shaped filler element, located between the inner and outer intermeshing members
-
- 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
- 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
- F04C2/088—Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement
-
- 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
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
Definitions
- the present invention relates to a hydraulic pump according to the preamble of Claim 1.
- Such a hydraulic pump also called a hydraulic pump
- a hydraulic pump is used in particular
- the industrial hydraulics used to get a hydraulic oil from a first Pressure level to pump to a second pressure level.
- these promote Pumping from an oil tank, usually in a closed circuit, like that that the oil returns to the oil tank after passing the working distance is initiated.
- the oil tanks are usually designed in size so that they can absorb an oil volume which is three to five times that of Volume of oil, which is pumped per minute by the pump.
- the invention has for its object to present a hydraulic pump, which is improved over the prior art and the aforementioned problems largely dissolves.
- the pressure build-up conditions in a Hydro pump, in particular a gear pump be designed such that no excessive pressure pulsations arise and a quieter in the essential cavitation-free operation is possible.
- the inventors are both interesting and unusual Possibility recognized by structural measures to ensure that in one Hydraulic pump enters the pressure range only nearly air-free hydraulic medium.
- Conventional designs are known in the Um Kunststoff Anlagen of the Suction side to the pressure side close play conditions on to the pressure chamber To seal as effectively as possible against the suction chamber and a Return flow of hydraulic medium from the pressure chamber in the suction chamber to Avoid, as this counteracts a pressure build-up in the pressure chamber.
- low Games or gaps between the relative to each other moving parts are considered necessary to high volumetric To achieve efficiencies.
- a targeted volume flow to adjust from hydraulic medium from the pressure chamber into the suction chamber is inventively achieved in that of the pressure chamber a Hydraulic medium-conducting remindströmharm with a predetermined Flow cross-section is provided to the suction chamber.
- a Hydraulic medium-conducting remindström für essentially no flow held by hydraulic fluid from the pressure chamber into the suction chamber causing a high efficiency is achieved.
- the targeted backflow volume flow causes, for example, at a Gear pump that the only partially filled tooth chambers until entry into the pressure chamber completely filled with hydraulic fluid, especially oil and advantageously already have the desired system pressure. This can a pressure pulsation due to the sudden filling of air-filled Volumes are effectively prevented.
- the desired backflow volume flow from the pressure chamber into the Suction room can by a suitable choice of the size of the Connection cross section of the remindströmtagen be adjusted.
- FIG. 1 can be seen an internal gear pump with so-called filler.
- the internal gear pump has an externally toothed pinion 10 and a internally toothed ring gear 11, which mesh with each other in a meshing engagement stand. It is, as indicated by the dot-dashed midpoint axes, the pinion 10 mounted eccentrically in the ring gear 11. Through this eccentric Storage form the pinion 10 and the ring gear 11 a crescent-shaped space between themselves. In this crescent-shaped space, the filler 14 is connected, which frontally, that is with its blunt side, against a pin is supported. The blunt side opposite pointed side of the Filler is adapted to the top of the safe space cross section and fits in with little game in this one.
- the filler 14 has in the circumferential direction of the pinion 10 and the Hohlrads 11 two curved flat outer sides, namely on the side of the Pinion 10 a first surface 14.1 and on the side of the ring gear 11 a second surface 14.2.
- the first surface 14.1 is in close proximity to the Tooth tips of the pinion 10 stored and the second surface 14.2 in denser Close to the tooth tips of the ring gear 11.
- the filler 14 is constructed in two parts. It includes a segment carrier 14.4 and a sealing segment 14.3. Both cuts, that is Segment carrier 14.4 and sealing segment 14.3, are radially adjacent to each other arranged. Between the two sections, a gap is provided which pressure-conducting connected to the pressure chamber 1. According to the pressure in the Pressure gap, the two sections take a certain radial position to each other, so the games on the surfaces 14.1 and 14.2 accordingly to optimize the pressure conditions.
- channels 15 are provided which the Inventive sudströmtagen 4 between the pressure chamber 1 and the suction chamber 2 manufacture. As can be seen in particular in Figure 1 b, are present in each surface 14.1 and 14.2 two parallel notch-shaped Channels 15 introduced.
- FIG. 2 shows an internal gear pump without filling piece. Appropriate Components are provided with the same reference numerals as in FIG. 1
- the remindströmtagenen are the 4th in the sealing surface between the ring gear 11 and the enclosing housing 16 introduced.
- the housing 16 in Area of sealed against the ring gear 11 surface between Pressure chamber 1 and suction chamber 2 notched channels. How to get in the Particularity recognizes from the figure 2b, three parallel channels in the Housing interior side surface introduced.
- By in the housing 16 introduced remindströmtagen 4 flows hydraulic medium from the Pressure chamber 1 in the direction of the suction chamber 2.
- About the radial holes in Ring gear 11 is remaining space in the tooth chambers substantially completely filled with hydraulic medium, especially oil.
- FIG. 3 shows a gear pump, which is an external gear pump is executed. You can see two meshing with each other Pinion 20 and 21, which are enclosed by a common housing 22.
- the pinion 20 forms with the housing 22 from a first sealing surface 23. In this Area, the tooth tips of the pinion 20 have a predetermined minimum Distance from the inner surface of the housing 22.
- the pinion 21 forms with the housing 22 from a second sealing surface 24. In In this area, the tooth tips of the pinion 21 have a predetermined minimum distance to the inner surface of the housing 22.
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
- Figur 1
- eine Innenzahnradpumpe mit geteiltem Füllstück mit einer erfindungsgemäßen Rückströmverbindung;
- Figur 2
- eine Innenzahnradpumpe ohne Füllstück mit erfindungsgemäßer Rückströmverbindung;
- Figur 3
- eine Außenzahnradpumpe mit erfindungsgemäßer Rückströmverbindung.
Claims (10)
- Hydropumpe, insbesondere Zahnradpumpe, mit1.1 einem Druckraum (1) und1.2 einem Saugraum (2); wobei1.3 die Hydropumpe wenigstens einen Verdrängungskörper (3) aufweist, der derart angetrieben zwischen den Druckraum (1) und den Saugraum (2) geschaltet ist, dass ein hydraulisches Medium von dem Saugraum (2) in den Druckraum (1) gepumpt wird;
dadurch gekennzeichnet, dass1.4 von dem Druckraum (1), der gegenüber dem Saugraum (2) im wesentlichen druckdicht abgesperrt ist, eine hydraulikmediumleitende Rückströmverbindung (4), vorzugsweise im Druckaufbaubereich, mit vorgegebenem Strömungsquerschnitt zu dem Saugraum (2) vorgesehen ist. - Hydropumpe gemäß Anspruch 1, dadurch gekennzeichnet, dass die Pumpe als Innenzahnradpumpe ausgeführt ist, welche ein außenverzahntes Ritzel (10) und ein innenverzahntes Hohlrad (11) aufweist; wobei2.1 das Ritzel (10) exzentrisch im Hohlrad (11) angeordnet ist und mit diesem in einem kämmenden Eingriff steht.
- Hydropumpe gemäß Anspruch 2, dadurch gekennzeichnet, dass in dem sichelförmigen Raum zwischen dem Ritzel (10) und dem Hohlrad (11) eine Füllung (14) vorgesehen ist, wobei die Rückströmverbindung (4) in die Füllung (14) eingebracht ist.
- Hydropumpe gemäß Anspruch 3, dadurch gekennzeichnet, dass die Rückströmverbindung (4) in Form eines oder mehrerer Kanäle (15) in der Oberfläche der Füllung (14) vorgesehen ist.
- Hydropumpe gemäß Anspruch 4, dadurch gekennzeichnet, dass die Füllung (14) eine erste Oberfläche (14.1) aufweist, die abdichtend an den Zahnspitzen des Ritzels (10) anliegt, und eine zweite Oberfläche (14.2), die abdichtend an den Zahnspitzen des Hohlrads (11) anliegt, wobei der oder die Kanäle (15) in der ersten und/oder zweiten Oberfläche (14.1, 14.2) in Form von Kerben in Umfangsrichtung vorgesehen sind.
- Hydropumpe gemäß einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass die Füllung (14) ein zweiteiliges Füllstück aufweist, wobei die beiden Teilstücke radial benachbart zueinander angeordnet sind und radial zueinander, elastisch oder durch Druckbeaufschlagung im Sichelraum verlagerbar sind.
- Hydropumpe gemäß einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass das Hohlrad (11) von einem Gehäuse (16) umschlossen ist, wobei die Rückströmverbindung (4) in dem Gehäuse (16) vorgesehen ist.
- Hydropumpe gemäß Anspruch 7, dadurch gekennzeichnet, dass die Rückströmverbindung (4) in Form von Kerben in Umfangsrichtung in einer oder mehreren Oberflächen des Gehäuses (16) vorgesehen ist, wobei diese Oberflächen abdichtend am Außenumfang des Hohlrads (11) anliegen.
- Hydropumpe gemäß Anspruch 1, dadurch gekennzeichnet, dass die Pumpe als Außenzahnradpumpe ausgeführt ist, welche mindestens zwei Ritzel (20, 21) aufweist, die miteinander in einem kämmenden Eingriff stehen; wobei9.1 die Ritzel (20, 21) von einem Gehäuse (22) umschlossen sind; und9.2 zwischen den Ritzeln (20, 21) und dem Gehäuse (22) der Druckraum (1) und der Saugraum (2) ausgebildet sind; und9.3 die Rückströmverbindung (4) in das Gehäuse (22) eingebracht ist.
- Hydropumpe gemäß Anspruch 9, dadurch gekennzeichnet, dass das erste Ritzel (20) mit seinen Zahnspitzen am Gehäuse (22) abdichtend anliegt, so dass eine erste Dichtfläche (23) gebildet wird; und10.1 das zweite Ritzel (21) mit seinen Zahnspitzen am Gehäuse (22) abdichtend anliegt, so dass eine zweite Dichtfläche (24) gebildet wird; wobei10.2 im Bereich beider Dichtflächen (23, 24) die Rückströmverbindung (4) in Form von einem oder mehreren Kanälen (25) in der Gehäuseoberfläche ausgebildet ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10334954 | 2003-07-31 | ||
| DE10334954A DE10334954A1 (de) | 2003-07-31 | 2003-07-31 | Hydropumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1503081A1 true EP1503081A1 (de) | 2005-02-02 |
| EP1503081B1 EP1503081B1 (de) | 2006-05-31 |
Family
ID=33521499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04017316A Expired - Lifetime EP1503081B1 (de) | 2003-07-31 | 2004-07-22 | Hydropumpe |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7331775B2 (de) |
| EP (1) | EP1503081B1 (de) |
| JP (1) | JP2005054787A (de) |
| KR (1) | KR20050014709A (de) |
| CN (1) | CN1580575A (de) |
| DE (2) | DE10334954A1 (de) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202011052114U1 (de) | 2011-11-28 | 2012-02-28 | Eckerle Industrie-Elektronik Gmbh | Innenzahnradpumpe |
| WO2012089436A3 (de) * | 2010-12-27 | 2013-06-20 | Robert Bosch Gmbh | Innenzahnradpumpe |
| WO2016199061A3 (en) * | 2015-06-11 | 2017-02-02 | Turla S.R.L. | Stretching machine for non-ferrous metal profiles |
| CN109113986A (zh) * | 2017-06-22 | 2019-01-01 | 江阴华欧德汽车动力系统研发有限公司 | 具有卸油结构的变速箱油泵及变速箱 |
| CN110273834A (zh) * | 2018-03-16 | 2019-09-24 | 艾可勒科技公司 | 齿轮流体机 |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005041579B4 (de) * | 2005-09-01 | 2015-06-11 | Bosch Rexroth Aktiengesellschaft | Innenzahnradpumpe mit Füllstück |
| DE102007049704B4 (de) * | 2007-10-17 | 2019-01-31 | Robert Bosch Gmbh | Innenzahnradpumpe für eine Bremsanlage |
| DE102007054808A1 (de) * | 2007-11-16 | 2009-05-20 | Robert Bosch Gmbh | Pumpenbaugruppe zur synchronen Druckbeaufschlagung von zwei Fluidkreisen |
| CN202149024U (zh) * | 2011-06-09 | 2012-02-22 | 萧锡钦 | 内啮合齿轮泵及填隙组件 |
| DE102011083425A1 (de) * | 2011-09-26 | 2013-03-28 | Robert Bosch Gmbh | Innenzahnradpumpe |
| DE102012001462A1 (de) | 2012-01-25 | 2013-07-25 | Robert Bosch Gmbh | Innenzahnradpumpe |
| DE102012205007A1 (de) * | 2012-03-28 | 2013-10-02 | Robert Bosch Gmbh | Innenzahnradpumpe |
| DE102014103958A1 (de) * | 2014-03-21 | 2015-09-24 | Eckerle Industrie-Elektronik Gmbh | Motor-Pumpen-Einheit |
| DE102015001235A1 (de) * | 2015-02-03 | 2016-08-04 | Man Truck & Bus Ag | Verfahren zum Betreiben einer Zahnradpumpe und Zahnradpumpe |
| DE102015209833B4 (de) * | 2015-05-28 | 2025-07-03 | Reinhard Pippes | Zahnradmaschine |
| CN105840503A (zh) * | 2016-05-11 | 2016-08-10 | 广州泰旺精密机械有限公司 | 一种内啮合齿轮泵的高压出油口结构及内啮合齿轮泵 |
| CN105840492A (zh) * | 2016-05-11 | 2016-08-10 | 广州泰旺精密机械有限公司 | 一种内啮合齿轮泵的泵体及内啮合齿轮泵 |
| WO2018096345A1 (en) * | 2016-11-28 | 2018-05-31 | Zilift Holdings Limited | Fail-safe actuator to control a downhole safety valve |
| CN114093764B (zh) | 2016-12-28 | 2025-07-22 | 太阳能爱迪生半导体有限公司 | 单晶硅晶片 |
| US12117003B2 (en) | 2019-12-17 | 2024-10-15 | Cummins Inc. | Flexible crescent for low pressure fuel pump |
| CN112013262B (zh) * | 2020-08-28 | 2021-10-22 | 台州九谊机电有限公司 | 一种机油泵的转子结构 |
| CN111911408A (zh) * | 2020-08-31 | 2020-11-10 | 安徽江淮汽车集团股份有限公司 | 内啮合齿轮泵 |
| EP4295046A4 (de) * | 2021-02-19 | 2024-12-18 | 1158992 B.C. Ltd. | Vorrichtung zur übertragung von fluiden |
| CN114198277B (zh) * | 2021-12-14 | 2023-03-31 | 浙江工业大学 | 齿轮传动往复式活塞泵 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2544144A (en) * | 1947-05-07 | 1951-03-06 | Gen Motors Corp | Oil burner pump |
| JPS62282185A (ja) * | 1985-12-26 | 1987-12-08 | Yamaha Motor Co Ltd | トロコイドポンプの吐出圧力調節装置 |
| DE4028699A1 (de) * | 1989-09-25 | 1991-04-04 | Bucher Maschf Gmbh | Zahnradpumpe- oder -motor |
| DE19746505A1 (de) * | 1996-12-02 | 1998-06-04 | Ford Motor Co | Innenzahnradpumpe |
| DE19934035A1 (de) * | 1998-07-27 | 2000-02-10 | Ford Motor Co | Zahnradpumpe mit innenverzahntem Zahnrad |
| US6089841A (en) * | 1998-06-26 | 2000-07-18 | General Motors Corporation | Crescent gear pump |
| DE19915784A1 (de) * | 1999-04-08 | 2000-10-19 | Fresenius Medical Care De Gmbh | Zahnradpumpe, insbesondere für medizinische Zwecke |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH157744A (fr) * | 1931-10-02 | 1932-10-15 | Volet Edouard | Pompe à engrenage. |
| GB967944A (en) * | 1962-04-06 | 1964-08-26 | Daimler Benz Ag | Improvements relating to gear pumps |
| DE1553014A1 (de) * | 1963-03-04 | 1969-08-21 | Otto Eckerle | Einrichtung an Pumpen zur Verminderung der Geraeuschentwicklung |
| DE2606082A1 (de) * | 1976-02-16 | 1977-08-25 | Otto Eckerle | Hochdruck-zahnradpumpe oder -motor |
| US4130383A (en) * | 1977-06-23 | 1978-12-19 | Borg-Warner Corporation | Apparatus for noise suppression in a gear pump |
| DE4133880A1 (de) * | 1991-10-12 | 1993-04-15 | Bosch Gmbh Robert | Aggregat zum foerdern von kraftstoff aus einem vorratstank zur brennkraftmaschine eines fahrzeuges |
| DE19854155B4 (de) * | 1997-12-03 | 2012-04-26 | Schaeffler Technologies Gmbh & Co. Kg | Hydraulische Zahnradmaschine |
| DE10134622B4 (de) * | 2001-07-17 | 2018-09-13 | Robert Bosch Gmbh | Zahnradpumpe, insbesondere zum Fördern von Kraftstoff aus einem Kraftstoffvorratsbehälter zu einer Kraftstoffhochdruckpumpe |
-
2003
- 2003-07-31 DE DE10334954A patent/DE10334954A1/de not_active Withdrawn
-
2004
- 2004-07-22 EP EP04017316A patent/EP1503081B1/de not_active Expired - Lifetime
- 2004-07-22 DE DE502004000652T patent/DE502004000652D1/de not_active Expired - Lifetime
- 2004-07-29 KR KR1020040059667A patent/KR20050014709A/ko not_active Withdrawn
- 2004-07-29 JP JP2004222155A patent/JP2005054787A/ja active Pending
- 2004-07-30 US US10/903,955 patent/US7331775B2/en not_active Expired - Lifetime
- 2004-08-02 CN CNA2004100704167A patent/CN1580575A/zh active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2544144A (en) * | 1947-05-07 | 1951-03-06 | Gen Motors Corp | Oil burner pump |
| JPS62282185A (ja) * | 1985-12-26 | 1987-12-08 | Yamaha Motor Co Ltd | トロコイドポンプの吐出圧力調節装置 |
| DE4028699A1 (de) * | 1989-09-25 | 1991-04-04 | Bucher Maschf Gmbh | Zahnradpumpe- oder -motor |
| DE19746505A1 (de) * | 1996-12-02 | 1998-06-04 | Ford Motor Co | Innenzahnradpumpe |
| US6089841A (en) * | 1998-06-26 | 2000-07-18 | General Motors Corporation | Crescent gear pump |
| DE19934035A1 (de) * | 1998-07-27 | 2000-02-10 | Ford Motor Co | Zahnradpumpe mit innenverzahntem Zahnrad |
| DE19915784A1 (de) * | 1999-04-08 | 2000-10-19 | Fresenius Medical Care De Gmbh | Zahnradpumpe, insbesondere für medizinische Zwecke |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 0121, no. 64 (M - 698) 18 May 1988 (1988-05-18) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012089436A3 (de) * | 2010-12-27 | 2013-06-20 | Robert Bosch Gmbh | Innenzahnradpumpe |
| DE202011052114U1 (de) | 2011-11-28 | 2012-02-28 | Eckerle Industrie-Elektronik Gmbh | Innenzahnradpumpe |
| WO2016199061A3 (en) * | 2015-06-11 | 2017-02-02 | Turla S.R.L. | Stretching machine for non-ferrous metal profiles |
| CN109113986A (zh) * | 2017-06-22 | 2019-01-01 | 江阴华欧德汽车动力系统研发有限公司 | 具有卸油结构的变速箱油泵及变速箱 |
| CN110273834A (zh) * | 2018-03-16 | 2019-09-24 | 艾可勒科技公司 | 齿轮流体机 |
| CN110273834B (zh) * | 2018-03-16 | 2020-12-15 | 艾可勒科技公司 | 齿轮流体机 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050123419A1 (en) | 2005-06-09 |
| KR20050014709A (ko) | 2005-02-07 |
| US7331775B2 (en) | 2008-02-19 |
| EP1503081B1 (de) | 2006-05-31 |
| DE10334954A1 (de) | 2005-02-24 |
| CN1580575A (zh) | 2005-02-16 |
| DE502004000652D1 (de) | 2006-07-06 |
| JP2005054787A (ja) | 2005-03-03 |
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