GB1447551A - Hydraulic fluid flow control apparatus - Google Patents

Hydraulic fluid flow control apparatus

Info

Publication number
GB1447551A
GB1447551A GB5561073A GB5561073A GB1447551A GB 1447551 A GB1447551 A GB 1447551A GB 5561073 A GB5561073 A GB 5561073A GB 5561073 A GB5561073 A GB 5561073A GB 1447551 A GB1447551 A GB 1447551A
Authority
GB
United Kingdom
Prior art keywords
consumers
control input
throttle
pressure
hydraulic fluid
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
GB5561073A
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.)
Westinghouse Bremsen und Apparatebau GmbH
Original Assignee
Westinghouse Bremsen und Apparatebau GmbH
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 Westinghouse Bremsen und Apparatebau GmbH filed Critical Westinghouse Bremsen und Apparatebau GmbH
Publication of GB1447551A publication Critical patent/GB1447551A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/3054—In combination with a pressure compensating valve the pressure compensating valve is arranged between directional control valve and output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • F15B2211/6054—Load sensing circuits having valve means between output member and the load sensing circuit using shuttle valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7052—Single-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/75—Control of speed of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1447551 Fluid regulation WESTINGHOUSE BREMSEN UND APPARATEBAU GmbH 30 Nov 1973 [11 Dec 1972] 55610/73 Heading G3H An hydraulic fluid-flow control apparatus for controlling flow between a fluid source 1, Fig. 1, and consumers 3a-d, has a respective flow metering restriction 5a-d and a respective pressurebalancing variable throttle 6a-d in each consumer supply line, the throttles being inter-connected to receive a common control input. The latter is derived from the supply lines via double-acting non-return valves 8, 9, 10 arranged to communicate the highest of the supply pressures as the control input to each throttle. The pressure of the control input acts on one end of each throttling spool 12 subjected at its other end to consumer supply pressure, whereby the spools assume positions wherein they throttle the supplies to effect pressure balance and maintain the desired ratio of flowrates as set by the restrictions 5a-d regardless of the loadings on the consumers. A similar hydraulic apparatus having five consumers is illustrated in Fig. 2 (not shown).
GB5561073A 1972-12-11 1973-11-30 Hydraulic fluid flow control apparatus Expired GB1447551A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722260457 DE2260457C2 (en) 1972-12-11 1972-12-11 Flow divider device for a hydraulic system with several different loadable consumers

Publications (1)

Publication Number Publication Date
GB1447551A true GB1447551A (en) 1976-08-25

Family

ID=5864039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5561073A Expired GB1447551A (en) 1972-12-11 1973-11-30 Hydraulic fluid flow control apparatus

Country Status (2)

Country Link
DE (1) DE2260457C2 (en)
GB (1) GB1447551A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5435132A (en) * 1991-11-29 1995-07-25 Lindholm; Jan Method and flow control valve assembly for flow balancing
US5699665A (en) * 1996-04-10 1997-12-23 Commercial Intertech Corp. Control system with induced load isolation and relief

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3044144A1 (en) * 1980-11-24 1982-09-09 Linde Ag, 6200 Wiesbaden HYDROSTATIC DRIVE SYSTEM WITH ONE ADJUSTABLE PUMP AND SEVERAL CONSUMERS
DE3146540A1 (en) * 1981-11-24 1982-06-24 Linde Ag, 6200 Wiesbaden Hydrostatic drive system with an adjustable pump and a plurality of consuming units
DE3634728A1 (en) * 1986-10-11 1988-04-21 Rexroth Mannesmann Gmbh VALVE ARRANGEMENT FOR LOAD-INDEPENDENT CONTROL OF SEVERAL SIMPLY ACTUATED HYDRAULIC CONSUMERS
IN170798B (en) * 1988-05-12 1992-05-23 Hitachi Construction Machinery
DE3821416A1 (en) * 1988-06-24 1989-12-28 Rexroth Mannesmann Gmbh HYDRAULIC CONTROL CIRCUIT FOR A TRAILER BRAKE VALVE
DE19531497A1 (en) * 1995-08-26 1997-02-27 Bucher Maschf Gmbh Proportional flow divider for hydraulic drive system
DE19715021A1 (en) * 1997-04-11 1998-10-15 Rexroth Mannesmann Gmbh Hydraulic control system for two units
DE502004005540D1 (en) * 2004-01-07 2007-12-27 Bosch Rexroth Ag POWER VALVE AND POWER SUPPLY WITH MULTIPLE POWER VALVES
DE102014216037A1 (en) * 2014-08-13 2016-02-18 Robert Bosch Gmbh Hydraulic flow divider with separate pressure compensators

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1143714B (en) * 1957-11-29 1963-02-14 Bosch Gmbh Robert Hydraulic system for feeding several working groups from one pressure medium source
DE1222376B (en) * 1963-03-11 1966-08-04 Westinghouse Bremsen Apparate Synchronization control device for two single-acting hydraulic working cylinders
US3631890A (en) * 1970-04-06 1972-01-04 Borg Warner Flow extending bypass valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5435132A (en) * 1991-11-29 1995-07-25 Lindholm; Jan Method and flow control valve assembly for flow balancing
US5699665A (en) * 1996-04-10 1997-12-23 Commercial Intertech Corp. Control system with induced load isolation and relief

Also Published As

Publication number Publication date
DE2260457A1 (en) 1974-06-12
DE2260457C2 (en) 1982-08-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee