DE3562509D1 - Variable displacement pump system - Google Patents
Variable displacement pump systemInfo
- Publication number
- DE3562509D1 DE3562509D1 DE8585300711T DE3562509T DE3562509D1 DE 3562509 D1 DE3562509 D1 DE 3562509D1 DE 8585300711 T DE8585300711 T DE 8585300711T DE 3562509 T DE3562509 T DE 3562509T DE 3562509 D1 DE3562509 D1 DE 3562509D1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- pressure
- pistons
- control valve
- displacement
- 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.)
- Expired
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
- F04B49/08—Regulating by delivery pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
- Y10T137/87177—With bypass
- Y10T137/87185—Controlled by supply or exhaust valve
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Rotary Pumps (AREA)
- Fertilizing (AREA)
- Endoscopes (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Gearings (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/576,688 US4518320A (en) | 1984-02-03 | 1984-02-03 | Variable displacement pump system |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3562509D1 true DE3562509D1 (en) | 1988-06-09 |
Family
ID=24305547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585300711T Expired DE3562509D1 (en) | 1984-02-03 | 1985-02-01 | Variable displacement pump system |
Country Status (11)
Country | Link |
---|---|
US (1) | US4518320A (de) |
EP (1) | EP0153065B1 (de) |
JP (1) | JP2521658B2 (de) |
AT (1) | ATE34020T1 (de) |
AU (1) | AU566197B2 (de) |
BR (1) | BR8500340A (de) |
CA (1) | CA1225279A (de) |
DE (1) | DE3562509D1 (de) |
DK (1) | DK46885A (de) |
ES (1) | ES8606150A1 (de) |
ZA (1) | ZA85800B (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5554007A (en) * | 1994-10-17 | 1996-09-10 | Caterpillar Inc. | Variable displacement axial piston hydraulic unit |
CA2260684C (en) * | 1998-02-06 | 2004-06-01 | Robert D. Backer | Pump enable system and method |
WO2005066490A1 (ja) * | 2004-01-05 | 2005-07-21 | Hitachi Construction Machinery Co., Ltd. | 可変容量型油圧ポンプの傾転制御装置 |
US8024925B2 (en) * | 2005-11-08 | 2011-09-27 | Caterpillar Inc. | Apparatus, system, and method for controlling a desired torque output |
US8286984B2 (en) * | 2007-12-18 | 2012-10-16 | Dillon Ben N | Articulated combine with unloading and rear bogey steering architecture |
US8661804B2 (en) | 2009-12-11 | 2014-03-04 | Caterpillar Inc. | Control system for swashplate pump |
US8165765B2 (en) | 2010-05-28 | 2012-04-24 | Caterpillar Inc. | Variator pressure-set torque control |
US11592000B2 (en) * | 2018-07-31 | 2023-02-28 | Danfoss Power Solutions, Inc. | Servoless motor |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2945449A (en) * | 1954-06-03 | 1960-07-19 | Bendix Aviat Corp | Hydraulic control pump |
US3164960A (en) * | 1963-09-03 | 1965-01-12 | New York Air Brake Co | Hydrostatic transmission |
US3350881A (en) * | 1966-01-13 | 1967-11-07 | Delavan Mfg Company | Constant delivery pump system |
US3416452A (en) * | 1966-12-29 | 1968-12-17 | Gen Signal Corp | Controls for variable displacement pumps |
US3439709A (en) * | 1967-04-17 | 1969-04-22 | Allis Chalmers Mfg Co | Hydraulic draft control valve |
DE2017656A1 (de) * | 1969-04-23 | 1970-11-05 | Pensa, Carlo, Esino Lario, Como (Italien) | Hydraulische FördermengeneinsteHvorrichtung für eine oder mehrere Pumpen |
BE757640A (fr) * | 1969-10-16 | 1971-04-16 | Borg Warner | Systemes hydrauliques, notamment pour la regulation d'une pompea debit variable |
DE2101730A1 (de) * | 1971-01-15 | 1972-07-20 | Robert Bosch Gmbh, 7000 Stuttgart | Regel- und Steuereinrichtung für eine Hydromaschine |
US3758235A (en) * | 1971-09-22 | 1973-09-11 | Sperry Rand Corp | Power transmission |
DE2342786A1 (de) * | 1973-08-24 | 1975-03-06 | Kloeckner Humboldt Deutz Ag | Steuereinrichtung fuer ein hydrostatisches kraftfahrzeuggetriebe |
US3941514A (en) * | 1974-05-20 | 1976-03-02 | Sundstrand Corporation | Torque limiting control |
JPS5236282A (en) * | 1975-09-17 | 1977-03-19 | Nuclear Fuel Ind Ltd | Installing method for nuclear fuel assembly |
CA1104033A (en) * | 1977-02-24 | 1981-06-30 | Commercial Shearing, Inc. | Pressure and flow compensated control system with constant torque and viscosity sensing over-ride |
DE2962702D1 (en) * | 1978-08-25 | 1982-06-24 | Dewandre Co Ltd C | Improvements relating to hydraulic control systems |
US4212164A (en) * | 1978-12-06 | 1980-07-15 | General Signal Corporation | Variable delivery pump control system |
DE3171629D1 (en) * | 1980-12-27 | 1985-09-05 | Hitachi Construction Machinery | Hydraulic power system |
US4456434A (en) * | 1982-03-01 | 1984-06-26 | Vickers, Incorporated | Power transmission |
-
1984
- 1984-02-03 US US06/576,688 patent/US4518320A/en not_active Expired - Lifetime
-
1985
- 1985-01-17 CA CA000472303A patent/CA1225279A/en not_active Expired
- 1985-01-25 BR BR8500340A patent/BR8500340A/pt unknown
- 1985-01-31 AU AU38237/85A patent/AU566197B2/en not_active Ceased
- 1985-02-01 EP EP85300711A patent/EP0153065B1/de not_active Expired
- 1985-02-01 DK DK46885A patent/DK46885A/da not_active Application Discontinuation
- 1985-02-01 DE DE8585300711T patent/DE3562509D1/de not_active Expired
- 1985-02-01 AT AT85300711T patent/ATE34020T1/de not_active IP Right Cessation
- 1985-02-01 ES ES540093A patent/ES8606150A1/es not_active Expired
- 1985-02-01 ZA ZA85800A patent/ZA85800B/xx unknown
- 1985-02-04 JP JP60019803A patent/JP2521658B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES540093A0 (es) | 1986-04-01 |
EP0153065A1 (de) | 1985-08-28 |
BR8500340A (pt) | 1985-09-10 |
AU566197B2 (en) | 1987-10-08 |
ATE34020T1 (de) | 1988-05-15 |
AU3823785A (en) | 1985-08-08 |
ES8606150A1 (es) | 1986-04-01 |
CA1225279A (en) | 1987-08-11 |
EP0153065B1 (de) | 1988-05-04 |
JP2521658B2 (ja) | 1996-08-07 |
US4518320A (en) | 1985-05-21 |
ZA85800B (en) | 1986-10-29 |
JPS60182375A (ja) | 1985-09-17 |
DK46885A (da) | 1985-08-04 |
DK46885D0 (da) | 1985-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |