GB1387491A - Variable displacement piston pumps or motors - Google Patents

Variable displacement piston pumps or motors

Info

Publication number
GB1387491A
GB1387491A GB1246972A GB1246972A GB1387491A GB 1387491 A GB1387491 A GB 1387491A GB 1246972 A GB1246972 A GB 1246972A GB 1246972 A GB1246972 A GB 1246972A GB 1387491 A GB1387491 A GB 1387491A
Authority
GB
United Kingdom
Prior art keywords
piston
pump
motors
displacement
force
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
Application number
GB1246972A
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.)
PepsiAmericas Inc
Original Assignee
Abex Corp
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 Abex Corp filed Critical Abex Corp
Publication of GB1387491A publication Critical patent/GB1387491A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
    • F01B3/0064—Machine housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
    • F01B3/007—Swash plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/10—Control of working-fluid admission or discharge peculiar thereto
    • F01B3/103—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block
    • F01B3/106—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by changing the inclination of the swash plate
    • 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
    • F04B49/002—Hydraulic systems to change the pump delivery
    • 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
    • F04B49/06—Control using electricity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

1387491 Hydraulic reciprocating pumps or motors ABEX CORP 16 March 1972 [29 March 1971] 12469/72 Heading F1A [Also in Division G3] In a variable displacement, rotary cylinder block pump or motor, a piston 100 biases the displacement control member 17 towards its zero displacement position with a force which increases in direct proportion to the force applied to the member 17 by the inertia of the working pistons, thereby reducing the force required to adjust the member 17. The adjustment of member 17 may be effected by the servomotor system shown, controlling fluid motors 88, 89 with feedback control (see Division G3), or by manual or mechanical means. The actuating pressure for piston 100 is supplied by a fixed displacement pump 115, e.g. a gear-pump, driven from cylinder block 9 and connected by its outlet to piston 100, and the pump casing interior 123 via throttle 122 to provide the required relationship between the pump speed and the force applied by piston 100. As shown, piston 100 acts on a cam surface 130 on member 17, but in Figs. 1 and 3 (not shown), the piston acts on a crank-pin on one of the pivots of the member 17.
GB1246972A 1971-03-29 1972-03-16 Variable displacement piston pumps or motors Expired GB1387491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12873371A 1971-03-29 1971-03-29

Publications (1)

Publication Number Publication Date
GB1387491A true GB1387491A (en) 1975-03-19

Family

ID=22436706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1246972A Expired GB1387491A (en) 1971-03-29 1972-03-16 Variable displacement piston pumps or motors

Country Status (4)

Country Link
US (1) US3733963A (en)
CA (1) CA969027A (en)
DE (1) DE2215891A1 (en)
GB (1) GB1387491A (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE406001B (en) * 1972-10-23 1979-01-15 Ifield Richard J PISTON PUMP WITH VARIABLE IMPACT VOLUME
US3803987A (en) * 1972-11-14 1974-04-16 Abex Corp Servoactuated hydraulic transducer apparatus
US4056041A (en) * 1974-08-02 1977-11-01 Abex Corporation Control system for axial piston fluid energy translating device
NL7410532A (en) * 1974-08-06 1976-02-10 Philips Nv FURNISHINGS WITH AT LEAST THREE MOVABLE AND BACK-MOVABLE PISTON-SHAPED BODIES.
US4145887A (en) * 1974-11-06 1979-03-27 U.S. Philips Corporation Swashplate compensation mechanism
DE2505778C2 (en) * 1975-02-12 1981-09-24 Robert Bosch Gmbh, 7000 Stuttgart Load limit control valve for a variable displacement pump
DE2505779C2 (en) * 1975-02-12 1983-01-13 Robert Bosch Gmbh, 7000 Stuttgart Load limit control device for adjustable pumps
US4248137A (en) * 1979-07-23 1981-02-03 Moog Inc. Feedback mechanism for variable displacement hydraulic device having an electrohydraulic controller
USRE31657E (en) * 1979-07-23 1984-09-04 Moog Inc. Feedback mechanism for variable displacement hydraulic device having an electrohydraulic controller
DE3942189C1 (en) * 1989-12-20 1991-09-05 Hydromatik Gmbh, 7915 Elchingen, De
US5279206A (en) * 1992-07-14 1994-01-18 Eaton Corporation Variable displacement hydrostatic device and neutral return mechanism therefor
DE19654567A1 (en) * 1996-12-27 1998-07-02 Mannesmann Rexroth Ag Hydraulic transformer
US5794515A (en) * 1997-04-03 1998-08-18 Bethke; Donald G. Swashplate control system for an axial piston pump
CA2260684C (en) * 1998-02-06 2004-06-01 Robert D. Backer Pump enable system and method
GB2342701A (en) * 1998-09-11 2000-04-19 Lucas Ind Plc Control of a variable displacement axial piston pump
US6158969A (en) * 1999-09-16 2000-12-12 Eaton Corporation Hydrostatic pump and disable control therefor
TW565652B (en) * 2002-12-13 2003-12-11 Ind Tech Res Inst Stirling engine with variable stroke
DE102005017240A1 (en) * 2005-04-14 2006-10-19 Alldos Eichler Gmbh Method and device for monitoring a pumped by a pump fluid flow
US8096228B1 (en) * 2008-08-08 2012-01-17 Sauer-Danfoss Inc. Bent axis dual yoke hydromodule
CN102121486B (en) * 2011-02-25 2013-04-10 广东工业大学 Energy-saving high-speed switch valve for hydraulic transmission
DE102011006102A1 (en) * 2011-03-25 2012-09-27 Zf Friedrichshafen Ag Adjustment device of a hydrostatic module
CN104832412A (en) * 2014-12-19 2015-08-12 北汽福田汽车股份有限公司 Pumping displacement control method, apparatus and system
CN110541787B (en) * 2019-08-29 2024-04-30 上海布拓传动***设备有限公司 Hydraulic motor with multiplied displacement without changing radial size of motor
US20230130997A1 (en) * 2021-10-22 2023-04-27 Hamilton Sundstrand Corporation Variable displacement pumps

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709844A (en) 1952-04-04 1955-06-07 William H Channell Cable support
US2915985A (en) 1957-06-20 1959-12-08 New York Air Brake Co Pump
US3017864A (en) 1958-08-18 1962-01-23 American Brake Shoe Co Valve
US3089426A (en) 1958-09-17 1963-05-14 New York Air Brake Co Engine
GB906357A (en) 1960-01-04 1962-09-19 New York Air Brake Co Hydraulic engine
US3187509A (en) 1964-09-16 1965-06-08 Sundstrand Corp Hydrostatic transmission
DE1938135U (en) 1964-12-14 1966-05-12 Giulio Fresia ROTATING SNOW CLEARING DEVICE.
US3429225A (en) 1966-06-09 1969-02-25 Abex Corp Electrohydraulic displacement control with mechanical feedback
DE1949687U (en) 1966-09-02 1966-11-10 Dietrich Heinrich Dipl I Bauer DEVICE FOR FUNNELESS SLUDGE REMOVAL FROM SEPARATION BASIN.
US3381624A (en) 1966-09-09 1968-05-07 Abex Corp Fail-safe control for hydraulic cross-center pump
US3422767A (en) 1966-12-05 1969-01-21 Webster Electric Co Inc Variable displacement swashplate pumps
FR1590694A (en) 1968-09-20 1970-04-20
FR2061752B1 (en) 1969-09-17 1973-12-07 Abex Corp

Also Published As

Publication number Publication date
CA969027A (en) 1975-06-10
US3733963A (en) 1973-05-22
DE2215891A1 (en) 1972-10-12

Similar Documents

Publication Publication Date Title
GB1387491A (en) Variable displacement piston pumps or motors
GB1368664A (en) Hydraulic system comprising a variable displacement pump and a control circuit
GB1523453A (en) Actuators
GB1382764A (en) Fluid actuated vibration generators
GB1385702A (en) Hydraulic motors and the like
KR910003223A (en) Hydraulic pump control circuit of traveling construction machine
GB1367910A (en) Arrangement for controlling the flow of the pressure medium delivery of a hydrostatic pump
GB1512358A (en) Ring dampener for rotary fluid pressure device
GB528950A (en) Improvements in and relating to means for automatically regulating a working machine
GB1173462A (en) Improvements in and relating to Fluid Pumps and Motors
GB1449943A (en) Axial piston pump
GB1519932A (en) Axial piston rotary hydraulic pumps and motors
GB1363990A (en) Variable displacement hydraulic piston pump or motor
GB1408814A (en) Control system for a hydrostartic transmission
DE3369550D1 (en) Control of an adjustment device for a variable displacement hydrostatic pump
GB1360800A (en) Reciprocating pumps
GB1282829A (en) Conversion of a variable delivery pump to fixed delivery pump
GB1161981A (en) Pneumatic Motor
GB1374538A (en) Piston pump
GB1472246A (en) Hydrostatic piston machines
US4745832A (en) Hydraulic speed control system
GB1188526A (en) Improvements in and relating to Variable Capacity Rotary Positive-Displacement Hydraulic Pumps
GB1332553A (en) Emergency power unit
GB1139198A (en) Improvements in or relating to hydraulic transmission
GB1034057A (en) Variable capacity hydraulic reciprocating pump

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee