GB1460846A - - Google Patents

Info

Publication number
GB1460846A
GB1460846A GB815974A GB815974A GB1460846A GB 1460846 A GB1460846 A GB 1460846A GB 815974 A GB815974 A GB 815974A GB 815974 A GB815974 A GB 815974A GB 1460846 A GB1460846 A GB 1460846A
Authority
GB
United Kingdom
Prior art keywords
valve
bush
pressure
switch
port
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
GB815974A
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 filed Critical
Publication of GB1460846A publication Critical patent/GB1460846A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • 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
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • 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
    • 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
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • 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
    • F15B2211/3138—Directional control characterised by the positions of the valve element the positions being discrete
    • 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
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F15B2211/50572—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using a pressure compensating valve for controlling the pressure difference across a flow 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
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a 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
    • F15B2211/52—Pressure control characterised by the type of actuation
    • F15B2211/526—Pressure control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/60—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
    • F15B2211/6052—Load sensing circuits having valve means between output member and the load sensing circuit using check 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
    • F15B2211/7053—Double-acting output members
    • F15B2211/7054—Having equal piston areas

Landscapes

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

Abstract

1460846 Valves INDEX-WERKE KG HAHN & TESSKY 22 Feb 1974 [1 March 1973] 8159/74 Heading F2V In a valve having a slide valve member 12 for connecting a work port 24 to either an inlet 22 or an outlet 26 to maintain the pressure at the port 24 constant at a value determined by the adjustable spring 38 the valve seat is formed as a bush 14 which is normally biased against a stop 50 by working fluid pressure in chamber 54 and which on failure of this pressure moves to the left to actuate a switch 62 to control a safety device. Two valve work ports may be maintained by an OR-device comprised by two relatively movable pistons acting between the bush and the switch.
GB815974A 1973-03-01 1974-02-22 Expired GB1460846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2310193A DE2310193C2 (en) 1973-03-01 1973-03-01 Safety pressure control valve for setting a constant working pressure

Publications (1)

Publication Number Publication Date
GB1460846A true GB1460846A (en) 1977-01-06

Family

ID=5873495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB815974A Expired GB1460846A (en) 1973-03-01 1974-02-22

Country Status (3)

Country Link
CH (1) CH566590A5 (en)
DE (1) DE2310193C2 (en)
GB (1) GB1460846A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3125479A1 (en) * 1981-06-29 1983-01-20 Wabco Steuerungstechnik GmbH & Co, 3000 Hannover CONTROL DEVICE FOR A VALVE-CONTROLLED VALVE, ARRANGED IN A SUPPLY PIPE
FR2644550A1 (en) * 1989-03-20 1990-09-21 Thermo King Corp COMBINED OIL PRESSURE REGULATOR AND LOW OIL PRESSURE INDICATOR ASSEMBLY FOR A REFRIGERANT FLUID COMPRESSOR
DE102004032981A1 (en) * 2004-07-08 2006-02-02 Preh Gmbh Method for monitoring position of pneumatic valve piston uses metal rod attached to it which activates switch when monitored position is reached
US7049007B2 (en) 2001-07-18 2006-05-23 Circuit Foil Luxembourg Sarl Composite foil and its manufacturing process

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430634A1 (en) * 1978-07-03 1980-02-01 Exi Metallo Hydraulic device pressure regulator - has piston moved by fluid pressure against spring to selectively vent fluid and control pressure
DE3204055C2 (en) * 1982-02-06 1984-06-28 Lutz 7306 Denkendorf Leupold Pressure relief or control valve
DE3232536C2 (en) * 1982-09-01 1986-10-23 Herion-Werke Kg, 7012 Fellbach Valve arrangement for controlling and monitoring the working pressure of a consumer
DE3313381C2 (en) * 1983-04-13 1985-02-21 Heller Hydraulik GmbH, 7440 Nürtingen Device for monitoring the hydraulic working pressure of a consumer
DE3532592A1 (en) * 1985-09-12 1987-03-19 Rexroth Mannesmann Gmbh 3-WAY PRESSURE REDUCER VALVE WITH SECONDARY PRESSURE MONITORING
DE9016844U1 (en) * 1990-12-13 1991-02-28 Schiefer, Rolf, 4050 Mönchengladbach Hydraulic pressure regulator with self-relief at O-bar control pressure
DE4117291A1 (en) * 1991-05-27 1992-12-03 Bw Hydraulik Gmbh DIRECTLY CONTROLLED PRESSURE CONTROL VALVE
DE4237901C2 (en) * 1992-11-10 1996-02-01 Heilmeier & Weinlein Electro-hydraulic control device and pressure reducing valve
DE9413273U1 (en) * 1994-08-17 1994-10-06 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Clamping module for machine tool clamping device
DE29518705U1 (en) 1995-11-24 1996-01-18 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Clamping module
DE29605911U1 (en) * 1996-03-29 1997-07-24 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Electro-hydraulic control device
DE29710128U1 (en) 1997-06-10 1997-08-14 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Differential pressure switching valve
DE19938132A1 (en) * 1999-08-16 2001-02-22 Eckehart Schulze Electro-hydraulic monitoring device for a double-acting hydraulic cylinder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3125479A1 (en) * 1981-06-29 1983-01-20 Wabco Steuerungstechnik GmbH & Co, 3000 Hannover CONTROL DEVICE FOR A VALVE-CONTROLLED VALVE, ARRANGED IN A SUPPLY PIPE
FR2644550A1 (en) * 1989-03-20 1990-09-21 Thermo King Corp COMBINED OIL PRESSURE REGULATOR AND LOW OIL PRESSURE INDICATOR ASSEMBLY FOR A REFRIGERANT FLUID COMPRESSOR
US7049007B2 (en) 2001-07-18 2006-05-23 Circuit Foil Luxembourg Sarl Composite foil and its manufacturing process
DE102004032981A1 (en) * 2004-07-08 2006-02-02 Preh Gmbh Method for monitoring position of pneumatic valve piston uses metal rod attached to it which activates switch when monitored position is reached
DE102004032981B4 (en) * 2004-07-08 2006-10-26 Preh Gmbh Valve for switching position monitoring of valves

Also Published As

Publication number Publication date
DE2310193C2 (en) 1974-11-21
DE2310193B1 (en) 1974-04-25
CH566590A5 (en) 1975-09-15

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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