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SE9000592D0 - COMPENSATION VALVE - Google Patents

COMPENSATION VALVE

Info

Publication number
SE9000592D0
SE9000592D0 SE9000592A SE9000592A SE9000592D0 SE 9000592 D0 SE9000592 D0 SE 9000592D0 SE 9000592 A SE9000592 A SE 9000592A SE 9000592 A SE9000592 A SE 9000592A SE 9000592 D0 SE9000592 D0 SE 9000592D0
Authority
SE
Sweden
Prior art keywords
chamber
compensation valve
piston
section
intended
Prior art date
Application number
SE9000592A
Other languages
Swedish (sv)
Other versions
SE465328B (en
SE9000592A (en
Inventor
*Fernstroem G
Original Assignee
Hydroswede I Stockholm Ab
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 Hydroswede I Stockholm Ab filed Critical Hydroswede I Stockholm Ab
Priority to SE9000592A priority Critical patent/SE465328B/en
Publication of SE9000592D0 publication Critical patent/SE9000592D0/en
Priority to PCT/SE1991/000119 priority patent/WO1991012449A1/en
Publication of SE9000592A publication Critical patent/SE9000592A/xx
Publication of SE465328B publication Critical patent/SE465328B/en

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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • 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
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid 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
    • F15B2211/50—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
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve
    • F15B2211/5154—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve being connected to multiple ports of an 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
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5159—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a 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
    • F15B2211/50—Pressure control
    • F15B2211/52—Pressure control characterised by the type of actuation
    • F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid 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
    • F15B2211/50—Pressure control
    • F15B2211/57—Control of a differential 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
    • F15B2211/705—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
    • F15B2211/7053—Double-acting output members

Landscapes

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

Abstract

A compensation valve for hydraulic servosystems in which pressure is intended to be found on both sides of a double-acting hydraulic piston-cylinder device and constructed to compensate for a change in pressure on one side of the piston of said device with a change in pressure on the other side of said piston. The invention is characterized in that the compensation valve (1) comprises a cylinder (20) which includes an elongated plunger (21) whose one end (22) faces towards a first chamber (23) and whose other end (24) faces toward a second chamber (25); in that one section (26) of the compensation valve cylinder has a larger diameter than the diameter of the plunger (21) at the section, the section (26) being connected to a channel (27) intended for connection to a tank (28). The section (26) is located between the chambers (23, 25) so that when displaced axially the plunger will permit pressure medium to pass from the first chamber (23) through the section (26) and into the tank. The diameter of the plunger and cylinder of the compensation valve at that end (22) thereof which faces towards the first chamber (23) differs from a corresponding diameter at that end (24) which faces towards the second chamber (25), the first chamber (23) of the compensation valve being intended for connection to a hydraulic component intended to control the pressure on the first side (4) of the piston (5) of the piston-cylinder device (3), and the second chamber (25) of the compensation valve being intended for connection to the other side (6) of the piston of the device.
SE9000592A 1990-02-19 1990-02-19 COMPENSATION VALVE SE465328B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9000592A SE465328B (en) 1990-02-19 1990-02-19 COMPENSATION VALVE
PCT/SE1991/000119 WO1991012449A1 (en) 1990-02-19 1991-02-18 A compensation valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9000592A SE465328B (en) 1990-02-19 1990-02-19 COMPENSATION VALVE

Publications (3)

Publication Number Publication Date
SE9000592D0 true SE9000592D0 (en) 1990-02-19
SE9000592A SE9000592A (en) 1991-08-20
SE465328B SE465328B (en) 1991-08-26

Family

ID=20378613

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9000592A SE465328B (en) 1990-02-19 1990-02-19 COMPENSATION VALVE

Country Status (2)

Country Link
SE (1) SE465328B (en)
WO (1) WO1991012449A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5828502A (en) * 1994-09-26 1998-10-27 Afshari; Ali Optical bench system
WO1996010204A1 (en) * 1994-09-26 1996-04-04 Ali Afshari Optical bench system
TW517061B (en) 1996-03-29 2003-01-11 Pharmacia & Amp Upjohn Ab Modified/chimeric superantigens and their use

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007593A (en) * 1958-11-21 1961-11-07 Electro Hydraulics Ltd Tilting mask assemblies for fork lift trucks
DE1406784A1 (en) * 1963-08-02 1969-04-17 Crede & Co Gmbh Geb Lift truck with hydraulic lifting mechanism
US3850323A (en) * 1972-12-27 1974-11-26 Eaton Corp Overload protection device with differential pressure sensing

Also Published As

Publication number Publication date
SE465328B (en) 1991-08-26
SE9000592A (en) 1991-08-20
WO1991012449A1 (en) 1991-08-22

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