EP2773850A2 - Pumpeinrichtung zur förderung eines mediums - Google Patents
Pumpeinrichtung zur förderung eines mediumsInfo
- Publication number
- EP2773850A2 EP2773850A2 EP12778309.0A EP12778309A EP2773850A2 EP 2773850 A2 EP2773850 A2 EP 2773850A2 EP 12778309 A EP12778309 A EP 12778309A EP 2773850 A2 EP2773850 A2 EP 2773850A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- pump
- pumping device
- wings
- vane
- 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
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
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3446—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0818—Vane tracking; control therefor
- F01C21/0854—Vane tracking; control therefor by fluid means
- F01C21/0863—Vane tracking; control therefor by fluid means the fluid being the working fluid
-
- 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
- F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
- F04C11/006—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle having complementary function
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
-
- 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
Definitions
- the invention relates to a pump device for conveying a medium with a vane pump, in which the vane pump has a rotor with vane slots radially outward toward a stroke contour of a stator extendable wings, connected to a pressure range of the pumping device via a fluid channel Under wing areas to
- Actuation of the underfoot areas with pressure for hydraulic extension of the wings wherein the lower wing areas of the wings are interconnected.
- Such pumping devices are used in today's motor vehicles to promote transmission oil and are known in practice.
- the lower wing areas are initially connected to one another.
- some of the vanes are pressed by the stroke contour of the stator in the rotor and generate a pressure in the under wing area.
- Other wings should be extended by the pressure in the lower wing areas of the rotor against the stroke contour of the stator.
- the underfloor areas are also connected via the fluid channel to a further pressure area.
- a disadvantage of the known pumping device is that with viscous medium or not completely filled with medium vane pump the pressure generated by the incoming wings in the lower wing areas can escape through the fluid channel. As a result, the wings to be moved out remain inside the rotor and there is no delivery of the medium.
- the invention is based on the problem, a pumping device of the type mentioned so on to form that they a reliable pressure build-up when starting the vane pump allows.
- This design ensures that the pressure generated by the incoming wings in the lower wing areas is used to extend other wings. Since the fluid channel is closed when starting the vane pump, it is avoided that pressure built up by the incoming wings can escape into the pressure region before a pressure in the pressure region is established. Thanks to the invention, the wings guided past the suction area are extended during the first revolution of the rotor.
- the pumping device according to the invention is characterized structurally particularly simple.
- the fluid channel can be closed in both directions as a function of the operating state of the pump device according to the invention if a switchable valve is arranged in the fluid channel.
- the structural complexity for closing the fluid channel can be kept particularly low according to an advantageous embodiment of the invention, when a check valve is arranged in the fluid channel, and when the check valve blocks in the direction of the pressure range.
- the check valve prevents the start of the vane pump that built-up pressure from incoming wings escapes into the pressure area without a pressure in the lower wing areas of the wing to be extended can be built.
- the check valve may be used as a replacement or in addition to the described switchable valve.
- Movable components for closing the fluid channel at the start of the vane pump can be according to another advantageous embodiment of the invention easily avoided if a temperature-dependent hydraulic resistance is arranged in the fluid channel, wherein the hydraulic resistance at low temperatures is highest.
- the hydraulic resistance is preferably designed such that the maximum leakage losses occurring in operation in the underflying area produce a pressure difference which is clearly below the minimum operating pressure of the pumping device. This ensures that the throttled pressure in the underwing area does not fall below the ambient pressure and is sufficient to extend the wings. Due to the temperature dependence of the hydraulic resistance allows the start of the pumping device and thus the still cold medium, the decoupling of the lower wing area of the pressure range, so that the lower wing areas of the retracting and extending wings are coupled. Another advantage of this design is that the pressure in the underflying areas is throttled, so that the contact pressure of the extending wings against the stroke contour is minimized. This reduces friction and wear of the vane pump.
- the hydraulic resistance is a throttle.
- the hydraulic resistor may be used as a replacement or in addition to the switchable valve or the check valve.
- the pressure region is arranged at the outlet of the vane pump.
- the wings can be reliably hydraulically extended when the pressure region is arranged at the outlet of a second pump.
- This design makes it possible to use part of the delivery pump of the second pump for the hydraulic extension of the blades of the vane pump.
- this design tion pumping device according to the invention has two pumps, which can be operated independently.
- the second pump allows according to another advantageous embodiment of the invention, a direct generation of a
- gear ring pumps or gear pumps have inherently fixed teeth, which ensures the immediacy of promotion with the start of the second pump even in cold and viscous media.
- FIG. 1 shows schematically a pumping device according to the invention with a vane pump
- FIG. 2 is a sectional view through the vane cells of Figure 1 along the line II - II,
- FIG. 3 schematically a further embodiment of he inventive pumping device, 4 shows a 3/2-way valve for the pumping device of FIG. 3, FIG.
- Fig. 5 shows schematically a further embodiment of he inventive pumping device.
- FIG. 1 shows a pump device with a double-stroke vane pump 1.
- the vane pump 1 has a rotor 3 rotatable in a stator 2 and extendable vanes 4, 5.
- the vane pump 1 conveys a medium, for example
- the wings 4, 5 are guided radially displaceable in wing slots 8, 9 against a stroke contour 10 of the stator 2.
- the rotor 3 has lower wing regions 11, 12, which are partially interconnected via constrictions 13.
- the pressure regions 7 are connected via fluid channels 14 with check valves 15 arranged therein with underfloor regions 12 arranged in the suction region 6.
- the check valves 15 are aligned such that they lock in the direction of the pressure area 7.
- the check valves 15 prevent the start of the vane pump 1, an escape of pressure from the lower wing areas 11, 12, when no pressure is built up in the pressure areas 7.
- FIG. 2 shows the vane pump 1 from FIG. 1 in a sectional view along the line II - II. It can be seen here that the underfloor regions 11, 12 are connected to one another via a groove 16 arranged in the stator 2. The check valves 15 are also arranged in the stator 2. The bottlenecks 13, shown in FIG. 1, over which the underfloor regions 11, 12 are connected to one another, are arranged in the stator 2 and thus stationary to the likewise stationary suction regions 6 and the pressure areas. 7
- FIG. 3 shows a further embodiment of the pump arrangement with a single-stroke vane pump 17 and a second pump 18.
- the stator 19 with suction regions 20, with pressure regions 21 and underfloor regions 23, 24 connected to each other via a constriction 22 are shown by the vane cell pump 17 .
- the second pump 18 is designed for example as a gear pump and promotes the
- the pressure region 21 of the vane pump 17 is connected via a fluid channel 27 with a check valve 28 with the underfoot region 24 at the suction region 20.
- the pressure region 26 of the second pump 18 is also connected via a second fluid channel 29 with a second check valve 30 to the lower wing region 24.
- the two check valves 28, 30 are designed such that a pressure from the Untererielbe- rich 23, 24 can not escape. However, as soon as in the
- FIG. 4 shows a switchable 3/2-way valve 31, which can be used instead of the two check valves 28, 30 in the pumping device of Figure 3.
- the vane pump 17 or the second pump 18 builds up a pressure in the respective pressure region 21, 26, this pressure region 21, 26 is connected to the underflying regions 24.
- This makes it possible to connect the pressure region 26 of the second pump 18 with the lower wing region 24 of the vane pump 18 and at the same time to prevent the pressure from escaping into the pressure region 21 of the vane pump 17.
- FIG. 5 shows a further embodiment of the pump device, which differs from that of FIG. 3 primarily in that the vane pump 17 has a temperature-dependent hydraulic resistance 32 instead of the check valve 28. The resistance 32 is greatest when the temperature is lowest. Otherwise, the pumping device is constructed as described for Figure 3.
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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011085795 | 2011-11-04 | ||
| PCT/EP2012/070839 WO2013064386A2 (de) | 2011-11-04 | 2012-10-22 | Pumpeinrichtung zur förderung eines mediums |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2773850A2 true EP2773850A2 (de) | 2014-09-10 |
| EP2773850B1 EP2773850B1 (de) | 2017-03-29 |
Family
ID=47076208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12778309.0A Not-in-force EP2773850B1 (de) | 2011-11-04 | 2012-10-22 | Pumpeinrichtung zur förderung eines mediums |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9593681B2 (de) |
| EP (1) | EP2773850B1 (de) |
| CN (1) | CN103917748B (de) |
| WO (1) | WO2013064386A2 (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013105437A1 (de) * | 2013-05-28 | 2014-12-04 | Zf Lenksysteme Gmbh | Verdrängerpumpe, insbesondere flügelzellenpumpe |
| DE102013105436A1 (de) * | 2013-05-28 | 2014-12-04 | Zf Lenksysteme Gmbh | Verdrängerpumpe, insbesondere flügelzellenpumpe |
| DE102014222322B3 (de) * | 2014-10-31 | 2016-02-04 | Magna Powertrain Bad Homburg GmbH | Flügelzellenpumpe mit verbessertem Startverhalten |
| DE102014222321B3 (de) * | 2014-10-31 | 2015-12-10 | Magna Powertrain Bad Homburg GmbH | Flügelzellenpumpe mit verbessertem Startverhalten |
| DE102015213477A1 (de) * | 2015-07-17 | 2017-01-19 | Zf Friedrichshafen Ag | Duales Pumpensystem |
| DE102015215982B4 (de) * | 2015-08-21 | 2017-03-16 | Magna Powertrain Bad Homburg GmbH | Pumpe sowie System zur Versorgung eines Verbrauchers |
| JP2017057738A (ja) * | 2015-09-14 | 2017-03-23 | トヨタ自動車株式会社 | 車両用油圧装置 |
| JP2017057737A (ja) * | 2015-09-14 | 2017-03-23 | トヨタ自動車株式会社 | 車両用油圧装置 |
| DE102015219771A1 (de) * | 2015-10-13 | 2017-04-13 | Continental Automotive Gmbh | Fördereinrichtung für ein Kraftfahrzeug |
| JP6707340B2 (ja) * | 2015-12-17 | 2020-06-10 | 株式会社ショーワ | ベーンポンプ装置 |
| DE102016211913A1 (de) * | 2016-06-30 | 2018-01-18 | Schwäbische Hüttenwerke Automotive GmbH | Flügelzellenpumpe mit druckbeaufschlagbarem Unterflügelbereich |
| JP6702117B2 (ja) * | 2016-09-23 | 2020-05-27 | ダイキン工業株式会社 | ベーンポンプ装置 |
| DE102016221332A1 (de) * | 2016-10-28 | 2018-05-03 | Zf Friedrichshafen Ag | Hydrauliksystem |
| DE102017223530A1 (de) * | 2017-12-21 | 2019-06-27 | Zf Friedrichshafen Ag | Flügelzellenpumpe |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2512433C2 (de) | 1975-03-21 | 1982-03-04 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Doppelhubige Drehkolbenpumpe, insbesondere für Hilfskraftlenkungen |
| DE2835816C2 (de) | 1978-08-16 | 1984-10-31 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Drehkolbenpumpe |
| JPS6098187A (ja) * | 1983-11-04 | 1985-06-01 | Diesel Kiki Co Ltd | ベ−ン型圧縮機 |
| JPH0469686U (de) * | 1990-10-25 | 1992-06-19 | ||
| US5147183A (en) | 1991-03-11 | 1992-09-15 | Ford Motor Company | Rotary vane pump having enhanced cold start priming |
| DE19631846A1 (de) | 1995-08-14 | 1997-02-20 | Luk Fahrzeug Hydraulik | Pumpe |
| WO2000039465A1 (de) * | 1998-12-24 | 2000-07-06 | Mannesmann Rexroth Ag | Pumpenanordnung mit zwei hydropumpen |
| DE19952167A1 (de) | 1998-12-24 | 2000-06-29 | Mannesmann Rexroth Ag | Pumpenanordnung mit zwei Hydropumpen |
| JP2004529283A (ja) * | 2000-09-28 | 2004-09-24 | グッドリッチ・パンプ・アンド・エンジン・コントロール・システムズ・インコーポレイテッド | ベーン下方供給装置付きベーンポンプ |
| US7094044B2 (en) * | 2001-11-16 | 2006-08-22 | Trw Automotive U.S. Llc | Vane pump having a pressure compensating valve |
| DE102004060554A1 (de) * | 2004-12-16 | 2006-06-22 | Robert Bosch Gmbh | Flügelzellenpumpe |
| DE102006036756A1 (de) | 2006-08-05 | 2008-02-07 | Zf Friedrichshafen Ag | Verfahren zur Verkürzung des Hochlaufes einer Flügelzellenpumpe und Flügelzellenpumpe, betreibbar nach dem Verfahren |
| JP4927601B2 (ja) * | 2007-03-05 | 2012-05-09 | 日立オートモティブシステムズ株式会社 | 可変容量型ベーンポンプ |
| EP2268899B1 (de) | 2008-04-04 | 2015-10-21 | Magna Powertrain Bad Homburg GmbH | Pumpe, insbesondere flügelzellenpumpe |
| CN201448235U (zh) * | 2009-06-16 | 2010-05-05 | 崔勇达 | 高性能液压叶片泵 |
-
2012
- 2012-10-22 EP EP12778309.0A patent/EP2773850B1/de not_active Not-in-force
- 2012-10-22 CN CN201280053941.0A patent/CN103917748B/zh not_active Expired - Fee Related
- 2012-10-22 WO PCT/EP2012/070839 patent/WO2013064386A2/de not_active Ceased
- 2012-10-22 US US14/356,077 patent/US9593681B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103917748B (zh) | 2018-05-29 |
| WO2013064386A2 (de) | 2013-05-10 |
| WO2013064386A3 (de) | 2013-07-18 |
| US9593681B2 (en) | 2017-03-14 |
| US20140301877A1 (en) | 2014-10-09 |
| CN103917748A (zh) | 2014-07-09 |
| EP2773850B1 (de) | 2017-03-29 |
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