EP0337439A3 - Fixed cylinder type radial piston pump with volume control apparatus - Google Patents

Fixed cylinder type radial piston pump with volume control apparatus Download PDF

Info

Publication number
EP0337439A3
EP0337439A3 EP19890106542 EP89106542A EP0337439A3 EP 0337439 A3 EP0337439 A3 EP 0337439A3 EP 19890106542 EP19890106542 EP 19890106542 EP 89106542 A EP89106542 A EP 89106542A EP 0337439 A3 EP0337439 A3 EP 0337439A3
Authority
EP
European Patent Office
Prior art keywords
volume control
radial piston
piston pump
fixed cylinder
control apparatus
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.)
Withdrawn
Application number
EP19890106542
Other languages
German (de)
French (fr)
Other versions
EP0337439A2 (en
Inventor
Sigeaki Yamamuro
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of EP0337439A2 publication Critical patent/EP0337439A2/en
Publication of EP0337439A3 publication Critical patent/EP0337439A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

A fixed cylinder type radial piston pump (1) with volume control apparatus is disclosed, in which volume control is possible by means of a variable aperture (38) carrying out opening control of a suction passage (22). For achieving continuous volume control in a large range, the radial piston pump (1) can provide two pump portions separated by an intermediate wall (60) and including a gate valve (62) in the other suction passage (22'). Without installing the intermediate wall (60), it is also possible to separate the two pump portions from each other by using a suction check valve (64).
EP19890106542 1988-04-13 1989-04-12 Fixed cylinder type radial piston pump with volume control apparatus Withdrawn EP0337439A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8890988A JPH01262374A (en) 1988-04-13 1988-04-13 Capacity control device for fixed cylindrical radial piston pump
JP88909/88 1988-04-13

Publications (2)

Publication Number Publication Date
EP0337439A2 EP0337439A2 (en) 1989-10-18
EP0337439A3 true EP0337439A3 (en) 1990-09-26

Family

ID=13956069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890106542 Withdrawn EP0337439A3 (en) 1988-04-13 1989-04-12 Fixed cylinder type radial piston pump with volume control apparatus

Country Status (2)

Country Link
EP (1) EP0337439A3 (en)
JP (1) JPH01262374A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2672127B2 (en) * 1988-09-20 1997-11-05 カヤバ工業株式会社 Radial piston pump
JPH02122180U (en) * 1989-03-17 1990-10-05
JP2689664B2 (en) * 1989-12-28 1997-12-10 日産自動車株式会社 Flow control device for variable displacement positive displacement pump
JP2684804B2 (en) * 1990-01-19 1997-12-03 日産自動車株式会社 Control device for positive displacement pump
US5167493A (en) * 1990-11-22 1992-12-01 Nissan Motor Co., Ltd. Positive-displacement type pump system
JPH04187871A (en) * 1990-11-22 1992-07-06 Nissan Motor Co Ltd Capacity control device of stationary cylinder type radial piston pump
JP2768033B2 (en) * 1991-03-26 1998-06-25 日産自動車株式会社 Control device for positive displacement pump
US5687808A (en) * 1994-03-18 1997-11-18 Nissan Motor Co., Ltd. Four wheel drive mechanism
DE4414400C2 (en) * 1994-04-26 1997-09-18 Rexroth Mannesmann Gmbh Engine brake for a multi-cylinder internal combustion engine
DE19510206B4 (en) * 1995-03-21 2005-08-18 Zf Friedrichshafen Ag Control device for a hydraulic circuit
JP4088738B2 (en) * 1998-12-25 2008-05-21 株式会社デンソー Fuel injection pump
DE19961852A1 (en) * 1999-12-22 2001-06-28 Continental Teves Ag & Co Ohg Pump has valve(s), preferably inlet valve(s), that determines parameter(s) dependent on pressure in pump cylinder and switching time of valve depending on the measured parameter
DE10221305A1 (en) 2002-05-14 2003-11-27 Bosch Gmbh Robert Radial piston pump for fuel injection system with improved high pressure resistance

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1653379A1 (en) * 1967-05-13 1971-07-01 Bosch Gmbh Robert Hydraulic piston pump with a throttle element arranged in the suction line
DE2946746A1 (en) * 1979-11-20 1981-05-27 Fichtel & Sachs Ag, 8720 Schweinfurt Hydraulic radial piston pump - has inlet flow increasingly throttled with increasing speed and with increasing pressure at outlet
DE2951012A1 (en) * 1979-12-19 1981-07-23 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen PUMP ARRANGEMENT

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51118103A (en) * 1975-04-10 1976-10-16 Daiken Kogyo Kk Super liquid pressure pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1653379A1 (en) * 1967-05-13 1971-07-01 Bosch Gmbh Robert Hydraulic piston pump with a throttle element arranged in the suction line
DE2946746A1 (en) * 1979-11-20 1981-05-27 Fichtel & Sachs Ag, 8720 Schweinfurt Hydraulic radial piston pump - has inlet flow increasingly throttled with increasing speed and with increasing pressure at outlet
DE2951012A1 (en) * 1979-12-19 1981-07-23 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen PUMP ARRANGEMENT

Also Published As

Publication number Publication date
JPH01262374A (en) 1989-10-19
EP0337439A2 (en) 1989-10-18

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Legal Events

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