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GB1400682A - Apparatus for regulating pumps - Google Patents

Apparatus for regulating pumps

Info

Publication number
GB1400682A
GB1400682A GB236473A GB236473A GB1400682A GB 1400682 A GB1400682 A GB 1400682A GB 236473 A GB236473 A GB 236473A GB 236473 A GB236473 A GB 236473A GB 1400682 A GB1400682 A GB 1400682A
Authority
GB
United Kingdom
Prior art keywords
pressure
conduit
slide
spring
biased
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
GB236473A
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.)
Individual
Original Assignee
Individual
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 DE19722208877 external-priority patent/DE2208877C3/en
Application filed by Individual filed Critical Individual
Publication of GB1400682A publication Critical patent/GB1400682A/en
Expired 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
    • 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
    • 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

Landscapes

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

Abstract

1400682 Fluid-pressure servomotor systems ALBERT HANDTMANN 17 Jan 1973 [25 Feb 1972] 2364/73 Heading G3P [Also in Divisions F1 and F2] To control the output of a vane-type pump 1 feeding an hydraulic or pneumatic motor 39 from a reservoir 13 a cam ring 7 is movable by pistons 14, 15 to which pressure is applied from conduits 10, 11, the piston 15 being biased by a compression spring 18. In accordance with pressures p1, p2 in chambers 28, 29 of a regulating device 17 a spooltype valve-member, or "slide", 20 either closes a conduit 26 or renders it in communication with the conduit 10 or the conduit 11 by way of a conduit 22 or 24, the chamber 29 being connected by a conduit 42 serving a manometer 41 to the output side of a pressure-regulating valve 37, which produces a pressure differential p1 - p2. The slide is biased by compression springs F1, F2 acting on a pin 34 and plunger 35. When the pressure p2 overcomes the force of the spring F2 the plunger loses contact with the pin and the spring load on the slide is thus reduced to give the pressure p1 in the chamber 28 greater influence.
GB236473A 1972-02-25 1973-01-17 Apparatus for regulating pumps Expired GB1400682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722208877 DE2208877C3 (en) 1972-02-25 Method and device for regulating the delivery pressure of controllable hydraulic pumps by changing the delivery rate

Publications (1)

Publication Number Publication Date
GB1400682A true GB1400682A (en) 1975-07-23

Family

ID=5837029

Family Applications (1)

Application Number Title Priority Date Filing Date
GB236473A Expired GB1400682A (en) 1972-02-25 1973-01-17 Apparatus for regulating pumps

Country Status (2)

Country Link
US (1) US3809500A (en)
GB (1) GB1400682A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2357801A1 (en) * 1973-11-20 1975-05-28 Bosch Gmbh Robert PRESSURE REGULATOR FOR ADJUSTABLE PUMP
DE2461897A1 (en) * 1974-12-31 1976-07-08 Bosch Gmbh Robert CONTROL DEVICE FOR A PUMP
DE2720306C2 (en) * 1977-05-06 1986-02-27 Robert Bosch Gmbh, 7000 Stuttgart Displacement machine
US4695230A (en) * 1985-12-13 1987-09-22 Vickers, Incorporated Power transmission
US4993921A (en) * 1989-04-21 1991-02-19 Vickers, Incorporated Power transmission
US5065577A (en) * 1989-11-22 1991-11-19 Sundstrand Corporation Hydromechanical displacement control for a power drive unit
PT102285A (en) * 1999-04-08 2000-10-31 Fernando Augusto Baptista CONTROL DEVICES FOR A HYDROSTATIC TRANSMISSION
ITBO20030528A1 (en) * 2003-09-12 2005-03-13 Pierburg Spa PUMPING SYSTEM USING A PALETTE PUMP

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2255783A (en) * 1940-02-17 1941-09-16 Manly Corp Fluid pressure device and system
US2368791A (en) * 1941-10-06 1945-02-06 Hydraulic Dev Corp Inc Servomotor
US2502546A (en) * 1947-03-28 1950-04-04 Denison Eng Co Hydraulic apparatus
US3067693A (en) * 1958-12-24 1962-12-11 United Aircraft Corp Control means for variable delivery pump
US2975717A (en) * 1959-06-12 1961-03-21 Racine Hydraulics & Machinery Flow governing hydraulic system
US3188971A (en) * 1962-08-13 1965-06-15 Bendix Corp Control system for a pump
GB1056655A (en) * 1964-11-16 1967-01-25 Ifield & Sons Pty Ltd R J Torque control means for variable displacement hydraulic pumps
BE757640A (en) * 1969-10-16 1971-04-16 Borg Warner HYDRAULIC SYSTEMS, ESPECIALLY FOR THE REGULATION OF A VARIABLE FLOW PUMP

Also Published As

Publication number Publication date
DE2208877A1 (en) 1973-09-13
DE2208877B2 (en) 1975-08-28
US3809500A (en) 1974-05-07

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Legal Events

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