FR2694964B1 - Hydraulic circuit for controlling a distributor of the flow division type independent of the load. - Google Patents

Hydraulic circuit for controlling a distributor of the flow division type independent of the load.

Info

Publication number
FR2694964B1
FR2694964B1 FR9210197A FR9210197A FR2694964B1 FR 2694964 B1 FR2694964 B1 FR 2694964B1 FR 9210197 A FR9210197 A FR 9210197A FR 9210197 A FR9210197 A FR 9210197A FR 2694964 B1 FR2694964 B1 FR 2694964B1
Authority
FR
France
Prior art keywords
distributor
load
controlling
hydraulic circuit
division type
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 - Lifetime
Application number
FR9210197A
Other languages
French (fr)
Other versions
FR2694964A1 (en
Inventor
Olivier Isaac
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.)
Rexroth Sigma SA
Original Assignee
Rexroth Sigma SA
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 Rexroth Sigma SA filed Critical Rexroth Sigma SA
Priority to FR9210197A priority Critical patent/FR2694964B1/en
Priority to DE19934328283 priority patent/DE4328283C2/en
Publication of FR2694964A1 publication Critical patent/FR2694964A1/en
Application granted granted Critical
Publication of FR2694964B1 publication Critical patent/FR2694964B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/162—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for giving priority to particular servomotors or users
    • 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
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/168—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load with an isolator valve (duplicating valve), i.e. at least one load sense [LS] pressure is derived from a work port load sense pressure but is not a work port pressure itself
    • 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
    • F15B2211/30555—Inlet and outlet of the pressure compensating valve being connected to the directional control valve
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
    • 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
    • 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
    • F15B2211/65—Methods of control of the load sensing pressure
    • F15B2211/653—Methods of control of the load sensing pressure the load sensing pressure being higher than the load pressure
    • 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
    • F15B2211/78—Control of multiple output members
    • F15B2211/781—Control of multiple output members one or more output members having priority

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
FR9210197A 1992-08-21 1992-08-21 Hydraulic circuit for controlling a distributor of the flow division type independent of the load. Expired - Lifetime FR2694964B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9210197A FR2694964B1 (en) 1992-08-21 1992-08-21 Hydraulic circuit for controlling a distributor of the flow division type independent of the load.
DE19934328283 DE4328283C2 (en) 1992-08-21 1993-08-23 Hydraulic control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9210197A FR2694964B1 (en) 1992-08-21 1992-08-21 Hydraulic circuit for controlling a distributor of the flow division type independent of the load.

Publications (2)

Publication Number Publication Date
FR2694964A1 FR2694964A1 (en) 1994-02-25
FR2694964B1 true FR2694964B1 (en) 1994-11-04

Family

ID=9432966

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9210197A Expired - Lifetime FR2694964B1 (en) 1992-08-21 1992-08-21 Hydraulic circuit for controlling a distributor of the flow division type independent of the load.

Country Status (2)

Country Link
DE (1) DE4328283C2 (en)
FR (1) FR2694964B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3491771B2 (en) * 1994-03-15 2004-01-26 株式会社小松製作所 Pressure compensation valve and pressure oil supply device
DE19703997A1 (en) * 1997-02-04 1998-08-06 Mannesmann Rexroth Ag Hydraulic control circuit for a priority and for a subordinate hydraulic consumer
GB2324575B (en) * 1997-04-24 2000-08-09 Caterpillar Inc Load sense hydraulic system
DE19749639A1 (en) * 1997-11-10 1999-05-12 Mannesmann Rexroth Ag Hydraulic circuit
US5950429A (en) * 1997-12-17 1999-09-14 Husco International, Inc. Hydraulic control valve system with load sensing priority
DE10119276B4 (en) * 2001-04-20 2009-12-10 Bosch Rexroth Aktiengesellschaft Hydraulic control circuit
DE602004004109T2 (en) * 2004-08-10 2007-07-12 Walvoil S.P.A. Inlet area for a load balanced directional control valve
DE102005047310A1 (en) 2005-09-30 2007-04-05 Bosch Rexroth Ag Hydraulic control device for e.g. load sensing load, has load signaling line connected with chamber, and control edge provided at piston of control valve, with which flow cross section between supply line and signaling line is controlled

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774635A (en) * 1972-04-18 1973-11-27 Sperry Rand Corp Power transmission
US4070858A (en) * 1976-10-06 1978-01-31 Clark Equipment Company Brake and steering system
DE2800814A1 (en) * 1978-01-10 1979-07-12 Bosch Gmbh Robert Load compensated hydraulic control system - has pump adjusting mechanism connected to pilot valve discharging to tank
DE3421502C2 (en) * 1984-06-08 1986-11-20 Mannesmann Rexroth GmbH, 8770 Lohr Hydraulic priority control device for at least two servomotors
DE3603630A1 (en) * 1986-02-06 1987-08-13 Rexroth Mannesmann Gmbh Control arrangement for at least two hydraulic consumers fed by at least one pump
DE3634728A1 (en) * 1986-10-11 1988-04-21 Rexroth Mannesmann Gmbh VALVE ARRANGEMENT FOR LOAD-INDEPENDENT CONTROL OF SEVERAL SIMPLY ACTUATED HYDRAULIC CONSUMERS
DE4005967C2 (en) * 1990-02-26 1996-05-09 Rexroth Mannesmann Gmbh Control arrangement for several hydraulic consumers
FR2689575B1 (en) * 1992-04-06 1994-07-08 Rexroth Sigma HYDRAULIC DISTRIBUTOR WITH PRESSURE COMPENSATION AND A MAXIMUM PRESSURE SELECTION FOR DRIVING A PUMP AND MULTIPLE HYDRAULIC CONTROL INCLUDING SUCH DISTRIBUTORS.

Also Published As

Publication number Publication date
FR2694964A1 (en) 1994-02-25
DE4328283C2 (en) 1996-08-01
DE4328283A1 (en) 1994-03-10

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Legal Events

Date Code Title Description
CD Change of name or company name
TP Transmission of property