FR2258579B1 - - Google Patents

Info

Publication number
FR2258579B1
FR2258579B1 FR7501898A FR7501898A FR2258579B1 FR 2258579 B1 FR2258579 B1 FR 2258579B1 FR 7501898 A FR7501898 A FR 7501898A FR 7501898 A FR7501898 A FR 7501898A FR 2258579 B1 FR2258579 B1 FR 2258579B1
Authority
FR
France
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
FR7501898A
Other languages
French (fr)
Other versions
FR2258579A1 (en
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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
Priority claimed from DE19742403007 external-priority patent/DE2403007C2/en
Priority claimed from DE2500537A external-priority patent/DE2500537C2/en
Priority claimed from DE2500480A external-priority patent/DE2500480C2/en
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of FR2258579A1 publication Critical patent/FR2258579A1/fr
Application granted granted Critical
Publication of FR2258579B1 publication Critical patent/FR2258579B1/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
    • F16K17/105—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve using choking or throttling means to control the fluid operation of the main valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
    • F16K31/383—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a piston
    • F16K31/3835—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a piston the discharge being effected through the piston and being blockable by a mechanically-actuated member making contact with the piston

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
FR7501898A 1974-01-23 1975-01-22 Expired FR2258579B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19742403007 DE2403007C2 (en) 1974-01-23 1974-01-23 Pilot operated pressure relief valve
DE2500537A DE2500537C2 (en) 1975-01-08 1975-01-08 Pilot operated pressure relief valve
DE2500480A DE2500480C2 (en) 1975-01-08 1975-01-08 Pilot operated pressure relief valve

Publications (2)

Publication Number Publication Date
FR2258579A1 FR2258579A1 (en) 1975-08-18
FR2258579B1 true FR2258579B1 (en) 1982-02-19

Family

ID=27185737

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7501898A Expired FR2258579B1 (en) 1974-01-23 1975-01-22

Country Status (10)

Country Link
JP (1) JPS5920911B2 (en)
BG (1) BG29576A3 (en)
DK (1) DK155548C (en)
ES (1) ES434051A1 (en)
FR (1) FR2258579B1 (en)
GB (1) GB1466022A (en)
IT (1) IT1026433B (en)
PL (1) PL108692B1 (en)
RO (1) RO64385A (en)
SE (1) SE406800B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0750612Y2 (en) * 1989-03-16 1995-11-15 株式会社小松製作所 Pressure control valve
US7137406B2 (en) 2002-11-19 2006-11-21 Hydraforce, Inc. Self-cleaning filter
CN108488395B (en) * 2018-05-30 2024-04-02 中国重型机械研究院股份公司 Stepped flow type injection valve controlled by multistage pressure

Also Published As

Publication number Publication date
DK18175A (en) 1975-10-27
DK155548C (en) 1989-09-11
BG29576A3 (en) 1980-12-12
IT1026433B (en) 1978-09-20
RO64385A (en) 1979-07-15
PL108692B1 (en) 1980-04-30
JPS50124221A (en) 1975-09-30
SE7500585L (en) 1975-08-20
JPS5920911B2 (en) 1984-05-16
ES434051A1 (en) 1977-02-16
FR2258579A1 (en) 1975-08-18
DK155548B (en) 1989-04-17
GB1466022A (en) 1977-03-02
SE406800B (en) 1979-02-26

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Legal Events

Date Code Title Description
ST Notification of lapse