EP0337439A3 - Fixed cylinder type radial piston pump with volume control apparatus - Google Patents
Fixed cylinder type radial piston pump with volume control apparatus Download PDFInfo
- 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- Withdrawn
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).
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)
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 |
JP2768033B2 (en) * | 1991-03-26 | 1998-06-25 | 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 |
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51118103A (en) * | 1975-04-10 | 1976-10-16 | Daiken Kogyo Kk | Super liquid pressure pump |
-
1988
- 1988-04-13 JP JP8890988A patent/JPH01262374A/en active Pending
-
1989
- 1989-04-12 EP EP19890106542 patent/EP0337439A3/en not_active Withdrawn
Patent Citations (3)
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 |
---|---|
EP0337439A2 (en) | 1989-10-18 |
JPH01262374A (en) | 1989-10-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0337439A3 (en) | Fixed cylinder type radial piston pump with volume control apparatus | |
CA2088824A1 (en) | Capacity control mechanism for scroll-type compressor | |
CA2012693A1 (en) | Intake valve for vacuum compressor | |
CA2080877A1 (en) | Pressure ratio responsive unloader | |
CA2289568A1 (en) | Device for varying a piston engine effective volumetric displacement and/or volumetric ratio of during its operation | |
ATE32131T1 (en) | VALVE OPENED BY DEPRESSION. | |
CA2007346A1 (en) | Fluid-controlled servo-arrangement | |
TW374828B (en) | Control device for slanting plate type variable capacity pump | |
EP0608415A4 (en) | Hydraulic circuit having pressure compensation valve. | |
ATE252204T1 (en) | PISTON PUMP | |
CA2041511A1 (en) | Dual-acting, reciprocating piston pump | |
TW330231B (en) | The electromagnetic pump | |
ES485290A1 (en) | Piston pump, especially radial piston pump | |
CA2147073A1 (en) | Pump Sprayer with Stationary Discharge | |
FR2774729B1 (en) | LIQUID PUMPING SYSTEM | |
ATE223000T1 (en) | ELECTROHYDRAULIC HUB MODULE | |
JPS57163706A (en) | Multiple cylinder equipment | |
CA2036609A1 (en) | Compatible manual and automatic control system for axial piston pumps | |
EP0129097A3 (en) | Stroke control valve for a radial piston pump | |
JPS6424193A (en) | Capacity control device for hermetic screw compressor | |
AU7132396A (en) | Pumping through a variable volume plunger chamber | |
DE3860559D1 (en) | CONTROL VALVE WITH HYDRAULIC SELF-HOLDING. | |
SE8803842D0 (en) | PUMP FEES AUTOMATICALLY AND SLOW EFFECT OF AN AMPULA | |
JPS53103203A (en) | Oil pressure operating device for fluid pressure conveying piston pump | |
JPS57157023A (en) | Control unit of fuel injection timing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19890412 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE GB |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE GB |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19910327 |