EP0347562A3 - Safety valve - Google Patents

Safety valve Download PDF

Info

Publication number
EP0347562A3
EP0347562A3 EP19890107714 EP89107714A EP0347562A3 EP 0347562 A3 EP0347562 A3 EP 0347562A3 EP 19890107714 EP19890107714 EP 19890107714 EP 89107714 A EP89107714 A EP 89107714A EP 0347562 A3 EP0347562 A3 EP 0347562A3
Authority
EP
European Patent Office
Prior art keywords
safety valve
valve
connections
controlled
bodies
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.)
Withdrawn
Application number
EP19890107714
Other languages
German (de)
French (fr)
Other versions
EP0347562A2 (en
Inventor
Helmut Motzer
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.)
Herion Werke KG
Original Assignee
Herion Werke KG
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 Herion Werke KG filed Critical Herion Werke KG
Publication of EP0347562A2 publication Critical patent/EP0347562A2/en
Publication of EP0347562A3 publication Critical patent/EP0347562A3/en
Withdrawn legal-status Critical Current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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/001—Double valve requiring the use of both hands simultaneously
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87193—Pilot-actuated
    • Y10T137/87209—Electric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87217—Motor
    • Y10T137/87225—Fluid motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

Die Erfindung betrifft ein hydraulisches Sicherheitsventil, das durch elektromagnetisch betätigte Vorsteuerventile (12, 14) angesteuert wird. Es hat zwei gegenläufig zueinander bewegbare Ventilkörper (18, 20), welche die Verbindungen zwischen einem Pumpenanschluß (P), zwei Arbeitsanschlüssen (A, B) und zwei Tankanschlüssen steuern (R, S). Bei einer Fehlschaltung gehen die beiden Ventilkörper in eine hydraulisch verriegelte Endstellung, aus der das Sicherheitsventil erst nach Beseitigung des Fehlers wieder in Betrieb genommen werden kann. Mit Hilfe eines mit dem Sicherheitsventil gekoppelten Proportional-Druckminderventiles (140) können Druckaufbau und Geschwindigkeit eines dem Sicherheitsventil nachgeschalteten Ver­ brauchers gesteuert werden. The invention relates to a hydraulic safety valve through Electromagnetically operated pilot valves (12, 14) is controlled. It has two valve bodies (18, 20) which can be moved in opposite directions, which the connections between a pump connection (P), two working connections (A, B) and two tank connections control (R, S). In the event of a malfunction the two valve bodies go into a hydraulically locked end position, from which the safety valve only comes back after the fault has been eliminated can be put into operation. With the help of a safety valve Coupled proportional pressure reducing valve (140) can build up pressure and Speed of a Ver. Downstream of the safety valve controlled by the user.

EP19890107714 1988-05-19 1989-04-27 Safety valve Withdrawn EP0347562A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3817122A DE3817122A1 (en) 1988-05-19 1988-05-19 SAFETY VALVE
DE3817122 1988-05-19

Publications (2)

Publication Number Publication Date
EP0347562A2 EP0347562A2 (en) 1989-12-27
EP0347562A3 true EP0347562A3 (en) 1990-10-17

Family

ID=6354732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890107714 Withdrawn EP0347562A3 (en) 1988-05-19 1989-04-27 Safety valve

Country Status (4)

Country Link
US (1) US4903728A (en)
EP (1) EP0347562A3 (en)
JP (1) JPH0242289A (en)
DE (1) DE3817122A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6478049B2 (en) 1996-12-16 2002-11-12 Ross Operating Valve Company Double valve with anti-tiedown capability
US5927324A (en) * 1996-12-16 1999-07-27 Ross Operating Valve Company Cross flow with crossmirror and lock out capability valve
US6155293A (en) 1996-12-16 2000-12-05 Ross Operating Valve Company Double valve with anti-tiedown capability
ATE352723T1 (en) 2001-05-04 2007-02-15 Ross Operating Valve Co CONTROL VALVE SYSTEM
US6619369B2 (en) * 2001-08-08 2003-09-16 Try Co., Ltd. Process for producing a thin die-cast molded article of an aluminum material
WO2015004003A1 (en) * 2013-07-08 2015-01-15 Norgren Gmbh A safety valve
DE102015005624A1 (en) * 2015-04-30 2016-11-03 Hydac Fluidtechnik Gmbh safety device
US9903396B2 (en) * 2016-03-08 2018-02-27 Caterpillar Inc. Valve assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171435A (en) * 1961-12-05 1965-03-02 Parker Hannifin Corp Solenoid operated valve assembly
DE1245665B (en) * 1963-01-23 1967-07-27 Erich Herion Control valve
DE1284231B (en) * 1965-01-15 1969-02-20 Herion Erich Control device with two control valves
DE1750358A1 (en) * 1968-04-24 1971-02-11 Bosch Gmbh Robert Electro-hydraulic control device
DD96321A1 (en) * 1971-12-16 1973-03-12
DE3104957C2 (en) * 1981-02-12 1986-12-04 Herion-Werke Kg, 7012 Fellbach Hydraulically operated press safety valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171435A (en) * 1961-12-05 1965-03-02 Parker Hannifin Corp Solenoid operated valve assembly
DE1245665B (en) * 1963-01-23 1967-07-27 Erich Herion Control valve
DE1284231B (en) * 1965-01-15 1969-02-20 Herion Erich Control device with two control valves
DE1750358A1 (en) * 1968-04-24 1971-02-11 Bosch Gmbh Robert Electro-hydraulic control device
DD96321A1 (en) * 1971-12-16 1973-03-12
DE3104957C2 (en) * 1981-02-12 1986-12-04 Herion-Werke Kg, 7012 Fellbach Hydraulically operated press safety valve

Also Published As

Publication number Publication date
JPH0242289A (en) 1990-02-13
US4903728A (en) 1990-02-27
EP0347562A2 (en) 1989-12-27
DE3817122A1 (en) 1989-11-30

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