EP2971779A1 - Pompe à palettes ayant de multiples chambres de commande - Google Patents

Pompe à palettes ayant de multiples chambres de commande

Info

Publication number
EP2971779A1
EP2971779A1 EP14763782.1A EP14763782A EP2971779A1 EP 2971779 A1 EP2971779 A1 EP 2971779A1 EP 14763782 A EP14763782 A EP 14763782A EP 2971779 A1 EP2971779 A1 EP 2971779A1
Authority
EP
European Patent Office
Prior art keywords
pump
control ring
control
chamber
ring
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
Application number
EP14763782.1A
Other languages
German (de)
English (en)
Other versions
EP2971779A4 (fr
EP2971779B1 (fr
Inventor
Matthew Williamson
David R. Shulver
Cezar Tanasuca
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.)
Magna Powertrain Fpc LP
Original Assignee
Magna Powertrain Inc
Magna Powertrain of America Inc
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
Priority claimed from US13/800,227 external-priority patent/US9181803B2/en
Application filed by Magna Powertrain Inc, Magna Powertrain of America Inc filed Critical Magna Powertrain Inc
Publication of EP2971779A1 publication Critical patent/EP2971779A1/fr
Publication of EP2971779A4 publication Critical patent/EP2971779A4/fr
Application granted granted Critical
Publication of EP2971779B1 publication Critical patent/EP2971779B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
    • F04C14/226—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam by pivoting the cam around an eccentric axis
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • 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

Definitions

  • Figure 4 shows a schematic representation of a prior art variable capacity vane pump
  • Pump 20 further includes a second control chamber 64, the leftmost hatched area in Figure 3, which is formed between pump casing 22, pump control ring 44, resilient seal 68 and a second resilient seal 76.
  • Resilient seal 76 abuts the wall of pump casing 22 to separate control chamber 64 from pump inlet 50 and resilient seal 68 separates chamber 64 from chamber 60.
  • control chamber 60 and return spring 56 results in reduced reaction forces on pivot pin 52 and can improve the operating lifetime of pump 20 and can reduce "stiction" of pump control ring 44 to allow smoother control of pump 20.
  • this unique positioning is not limited to use in variable capacity vane pumps with two or more equilibrium pressures and can be employed with variable capacity vane pumps with single equilibrium pressures.
  • a first chamber 460 extends between first seal assembly 446 and third seal assembly 450 and between an outer surface of pump control ring 424 and housing 402.
  • a second chamber 462 is defined between first seal assembly 446 and second seal assembly 448, as well as the other surface of pump control ring 424 and housing 402.
  • pump 400 may be configured to operate in at least two different modes.
  • first chamber 460 is provided pressurized fluid at pump outlet pressure.
  • second chamber 462 may be selectively supplied pressurized fluid from any source of pressure through the use of an on/off solenoid valve.
  • an upper equilibrium pressure of pump 400 is defined by the pump outlet pressure and a lower equilibrium pressure may be defined by the second source.
  • Pump 500 is similar to pump 400 regarding the use of a pivoting pump control ring 526, first through fourth seal assemblies 528, 530, 532, 534, a bias spring 536, vanes 538, a rotor 540, a rotor shaft 542 and retaining rings 544. Similar elements will not be described in detail.
  • control ring 526 At cold start, it may be desirable to urge control ring 526 toward a position of minimum displacement as shown in Figure 1 1 . This may be accomplished by having moment arm R be longer than moment arm R 2 . Alternatively, it may be desirable to compensate for forces acting internally within pump 500 and acting on pump control ring 526. To address this concern, it may be desirable to construct moment arm Ri at a length less than the length of moment arm R 2 to urge pump control ring 526 toward the maximum displacement position.
  • Figure 9 represents control ring 526 at a position of maximum eccentricity, thereby providing maximum pump displacement.
  • first seal assembly 528 is circumferentially spaced apart from fourth seal assembly 534 an angle greater than 80 degrees.
  • first control chamber 520 is always active and may be in receipt of pressurized fluid from any source, such as the pump output.
  • Second control chamber 524 is switched on and off via solenoid 522.
  • the supply of pressurized fluid may be from any source.
  • Outlet passage 550, or third control chamber 550 may or may not contribute to the pressure controlling function as described in relation to the relative lengths of moment arms Ri and R 2 .
  • Pump 500 need only be associated with an on/off type solenoid valve 522 due to the provision of three control chambers.
  • Third control chamber 550 provides for a very low restriction outlet flow path.
  • First control chamber 520 and second control chamber 524 allow two equilibrium pressures that are determined by sources other than the pump outlet pressure.

Landscapes

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

Abstract

L'invention porte sur une pompe à palettes à capacité variable, qui comprend une première chambre de commande entre un carter de pompe et une première partie d'un anneau de commande de pompe. La première partie de l'anneau de commande s'étend de façon circonférentielle de part et d'autre d'un axe de pivotement. Une seconde chambre de commande est formée entre le carter de pompe et une seconde partie de l'anneau de commande de pompe. Les première et seconde chambres de commande peuvent recevoir un fluide mis sous pression pour créer une force servant à déplacer l'anneau de commande de pompe pour réduire la capacité volumétrique de la pompe. Un ressort de rappel sollicite l'anneau de pompe vers une position de capacité volumétrique maximale.
EP14763782.1A 2013-03-13 2014-03-06 Pompe à palettes ayant de multiples chambres de commande Active EP2971779B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/800,227 US9181803B2 (en) 2004-12-22 2013-03-13 Vane pump with multiple control chambers
PCT/IB2014/059506 WO2014141013A1 (fr) 2013-03-13 2014-03-06 Pompe à palettes ayant de multiples chambres de commande

Publications (3)

Publication Number Publication Date
EP2971779A1 true EP2971779A1 (fr) 2016-01-20
EP2971779A4 EP2971779A4 (fr) 2016-12-07
EP2971779B1 EP2971779B1 (fr) 2020-08-05

Family

ID=51535960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14763782.1A Active EP2971779B1 (fr) 2013-03-13 2014-03-06 Pompe à palettes ayant de multiples chambres de commande

Country Status (7)

Country Link
EP (1) EP2971779B1 (fr)
JP (1) JP6130525B2 (fr)
KR (1) KR101789899B1 (fr)
CN (1) CN105074217B (fr)
CA (2) CA3014939C (fr)
MX (1) MX365215B (fr)
WO (1) WO2014141013A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6664465B2 (ja) 2016-03-07 2020-03-13 日立オートモティブシステムズ株式会社 可変容量形ポンプ
DE102016124104A1 (de) 2016-12-12 2018-06-14 Schwäbische Hüttenwerke Automotive GmbH Hydraulikvorrichtung mit Dichtelement
CN106969249A (zh) * 2017-04-26 2017-07-21 奇瑞汽车股份有限公司 一种叶片式机油泵
CN107605720B (zh) * 2017-10-27 2019-06-28 湖南机油泵股份有限公司 一种基于双开关电磁阀的三级或四级可变排量机油泵
CN108894982B (zh) * 2018-08-21 2023-12-05 湖南机油泵股份有限公司 一种具有密封补偿功能的可变排量叶片泵
KR20210149179A (ko) * 2019-04-23 2021-12-08 스택폴 인터내셔널 엔지니어드 프로덕츠, 엘티디. 제어 챔버를 위한 개선된 시일 조립체를 지닌 베인 펌프
EP4240973A1 (fr) 2020-11-09 2023-09-13 Pierburg Pump Technology GmbH Pompe de graissage à cylindrée variable
US11635076B2 (en) * 2021-01-22 2023-04-25 Slw Automotive Inc. Variable displacement vane pump with improved pressure control and range
CN117052957B (zh) * 2023-10-10 2024-01-26 山东振宇厨业有限公司 一种燃气灶具联动安全调节阀

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6558132B2 (en) 2001-09-24 2003-05-06 General Motors Corporation Variable displacement pump
DE112005002644T5 (de) * 2004-10-25 2007-09-20 Magna Powertrain Inc., Concord Flügelzellenpumpe mit variabler Fördermenge und Kraftreduktionskammer an Verdrängungsring
CA2762087C (fr) * 2004-12-22 2015-02-10 Magna Powertrain Inc. Pompe a palettes de capacite variable comprenant des chambres de commande doubles
JP5174720B2 (ja) 2009-03-09 2013-04-03 日立オートモティブシステムズ株式会社 可変容量形ポンプ
EP2253847B1 (fr) * 2009-05-18 2019-07-03 Pierburg Pump Technology GmbH Pompe à paillettes à lubrifiant à capacité variable

Also Published As

Publication number Publication date
CA2902472C (fr) 2018-10-02
JP6130525B2 (ja) 2017-05-17
CN105074217A (zh) 2015-11-18
CA3014939C (fr) 2020-07-14
EP2971779A4 (fr) 2016-12-07
JP2016510102A (ja) 2016-04-04
CA2902472A1 (fr) 2014-09-18
MX2015012591A (es) 2016-01-20
KR20150128866A (ko) 2015-11-18
CN105074217B (zh) 2017-03-15
KR101789899B1 (ko) 2017-10-25
EP2971779B1 (fr) 2020-08-05
WO2014141013A1 (fr) 2014-09-18
MX365215B (es) 2019-05-27
CA3014939A1 (fr) 2014-09-18

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