EP2773850B1 - Dispositif de pompage pour le refoulement d'un fluide - Google Patents

Dispositif de pompage pour le refoulement d'un fluide Download PDF

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Publication number
EP2773850B1
EP2773850B1 EP12778309.0A EP12778309A EP2773850B1 EP 2773850 B1 EP2773850 B1 EP 2773850B1 EP 12778309 A EP12778309 A EP 12778309A EP 2773850 B1 EP2773850 B1 EP 2773850B1
Authority
EP
European Patent Office
Prior art keywords
pump
vane
pressure
pump device
under
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.)
Not-in-force
Application number
EP12778309.0A
Other languages
German (de)
English (en)
Other versions
EP2773850A2 (fr
Inventor
Christian Böhm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP2773850A2 publication Critical patent/EP2773850A2/fr
Application granted granted Critical
Publication of EP2773850B1 publication Critical patent/EP2773850B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 pumping device for conveying a medium with a vane pump, in which the vane pump has a rotor with vane slots radially outwardly towards a stroke contour of a stator extendable wings, with a pressure range of the pumping device via a fluid channel connected lower wing areas for acting on the underwing 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 lower wing areas are also connected via the fluid channel with another pressure range.
  • 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 is used in the under wing areas 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 is highest at low temperatures.
  • 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 allows the hydraulic resistance at the start of the pumping device and thus the still cold medium, the decoupling of the underwing area of the pressure range, so that the lower wing areas of the retracting and extending wings are coupled.
  • the pressure in the lower wing areas is throttled, so that the contact pressure of the extending wings is minimized against the stroke contour. 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.
  • a portion of the flow rate of the second pump for the hydraulic extension of the blades of the vane pump can be used.
  • the pumping device according to the invention has two pumps, which can be operated independently of each other.
  • the second pump allows according to another advantageous embodiment of the invention, a direct generation of a pressure for extending the blades of the vane pump, when the second pump is a gear ring pump or as a gear pump.
  • 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 a pumping device with a double-stroke vane pump 1.
  • the vane pump 1 has a rotor 2 rotatable in a stator 2 and extendable wings 4, 5.
  • the vane pump 1 conveys a medium, such as gear oil from suction 6 to pressure areas 7.
  • the wings 4, 5 are in wing slots 8, 9 guided radially displaceable against a stroke contour 10 of the stator 2.
  • the rotor 3 has lower wing regions 11, 12, which are interconnected partially via bottlenecks 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 vanes 4 located on the pressure region 7 are pressed into the rotor 3, while vanes 5 located on the suction region 6 extend.
  • the pressed into the rotor 3 wings 4 build in the lower wing areas 11, 12 to a pressure which causes the didacticfahrenden wings 5 are extended from the rotor 3.
  • 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 lower wing 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. In the FIG. 1 shown bottlenecks 13, via which the lower wing areas 11, 12 are connected to each other, 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 pumping arrangement with a single-stroke vane pump 17 and a second pump 18. From the vane pump 17 is shown for simplicity only the stator 19 with suction areas 20, with pressure areas 21 and over a constriction 22 interconnected under wing areas 23, 24.
  • the second pump 18 is designed, for example, as a gear pump and conveys the medium from a suction region 25 to a pressure region 26.
  • the pressure region 21 of the vane pump 17 is connected via a fluid channel 27 with a check valve 28 to the lower wing 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 lower wing areas 23, 24 can not escape. However, as soon as a pressure is built up in the pressure regions 21, 26 of the vane pump 17 or the second pump 18, the conveyed medium passes via the fluid channels 27, 29 into the underfinger regions 23, 24.
  • FIG. 4 shows a switchable 3/2-way valve 31, which instead of the two check valves 28, 30 in the pumping device FIG. 3 can be used.
  • FIG. 5 shows a further embodiment of the pumping device, which is different from the FIG. 3 especially differs in that the vane pump 17 instead of the check valve 28 has a temperature-dependent, hydraulic resistance 32. The resistance 32 is greatest when the temperature is lowest. Otherwise the pumping device is as closed FIG. 3 described constructed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Claims (8)

  1. Dispositif de pompage pour le refoulement d'un fluide avec une pompe à palettes (1, 17), dans lequel la pompe à palettes (1, 17) comporte un rotor (3) avec des ailettes (4, 5) pouvant sortir hors de fentes d'ailettes (8, 9) radialement vers l'extérieur en direction d'un profil de levage (10) d'un stator (2, 19), et avec des régions (11, 12, 23, 24) sous les ailettes reliées par un canal de fluide (14, 27, 29) à une région de pression (7, 21, 26) du dispositif de pompage pour mettre sous pression les régions sous les ailettes (11, 12, 23, 24) en vue de la sortie hydraulique des ailettes (4, 5), dans lequel les régions sous les ailettes (11, 12, 23, 24) des ailettes (4, 5) sont reliées entre elles, caractérisé en ce qu'au moins au démarrage de la pompe à palettes (1, 17), le canal de fluide (14, 27, 29) partant de la région sous les ailettes (11, 12, 23, 24) en direction de la région de pression (7, 21, 26) est fermé.
  2. Dispositif de pompage selon la revendication 1, caractérisé en ce qu'une soupape commutable (31) est disposée dans le canal de fluide (27, 29).
  3. Dispositif de pompage selon la revendication 1 ou 2, caractérisé en ce qu'un clapet anti-retour (15, 28, 30) est disposé dans le canal de fluide (14, 27, 29), et en ce que le clapet anti-retour (15, 28, 30) bloque en direction de la région de pression (7, 21, 26).
  4. Dispositif de pompage selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'une résistance hydraulique (32), dépendant de la température, est disposée dans le canal de fluide (27, 29), dans lequel la résistance hydraulique (32) est maximale dans le cas de basses températures.
  5. Dispositif de pompage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la région de pression (7, 21) est disposée à la sortie de la pompe à palettes (1, 17).
  6. Dispositif de pompage selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la région de pression (26) est disposée à la sortie d'une deuxième pompe (18).
  7. Dispositif de pompage selon la revendication 6, caractérisé en ce que la deuxième pompe (18) est une pompe annulaire à engrenages ou une pompe à engrenages.
  8. Dispositif de pompage selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les régions sous les ailettes (11, 12, 23, 24) sont reliées l'une à l'autre par une rainure (16) pratiquée dans le stator (2, 19) et en ce que la rainure (16) présente un étranglement (13, 22) entre les régions sous les ailettes (12, 24) des ailettes sortantes (5) et les régions sous les ailettes (11, 23) des ailettes rentrantes (4).
EP12778309.0A 2011-11-04 2012-10-22 Dispositif de pompage pour le refoulement d'un fluide Not-in-force EP2773850B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011085795 2011-11-04
PCT/EP2012/070839 WO2013064386A2 (fr) 2011-11-04 2012-10-22 Dispositif de pompage pour le refoulement d'un fluide

Publications (2)

Publication Number Publication Date
EP2773850A2 EP2773850A2 (fr) 2014-09-10
EP2773850B1 true EP2773850B1 (fr) 2017-03-29

Family

ID=47076208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12778309.0A Not-in-force EP2773850B1 (fr) 2011-11-04 2012-10-22 Dispositif de pompage pour le refoulement d'un fluide

Country Status (4)

Country Link
US (1) US9593681B2 (fr)
EP (1) EP2773850B1 (fr)
CN (1) CN103917748B (fr)
WO (1) WO2013064386A2 (fr)

Families Citing this family (14)

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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
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
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
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

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CN201448235U (zh) * 2009-06-16 2010-05-05 崔勇达 高性能液压叶片泵

Also Published As

Publication number Publication date
EP2773850A2 (fr) 2014-09-10
US9593681B2 (en) 2017-03-14
CN103917748B (zh) 2018-05-29
US20140301877A1 (en) 2014-10-09
CN103917748A (zh) 2014-07-09
WO2013064386A3 (fr) 2013-07-18
WO2013064386A2 (fr) 2013-05-10

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