FR2329917A1 - Valve de decharge pour circuits hydrauliques - Google Patents

Valve de decharge pour circuits hydrauliques

Info

Publication number
FR2329917A1
FR2329917A1 FR7534366A FR7534366A FR2329917A1 FR 2329917 A1 FR2329917 A1 FR 2329917A1 FR 7534366 A FR7534366 A FR 7534366A FR 7534366 A FR7534366 A FR 7534366A FR 2329917 A1 FR2329917 A1 FR 2329917A1
Authority
FR
France
Prior art keywords
conical
cylindrical body
piston seal
plug
relief valve
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.)
Granted
Application number
FR7534366A
Other languages
English (en)
Other versions
FR2329917B3 (fr
Inventor
Roger Chanal
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.)
Bennes Marrel SA
Original Assignee
Bennes Marrel 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 Bennes Marrel SA filed Critical Bennes Marrel SA
Priority to FR7534366A priority Critical patent/FR2329917A1/fr
Publication of FR2329917A1 publication Critical patent/FR2329917A1/fr
Application granted granted Critical
Publication of FR2329917B3 publication Critical patent/FR2329917B3/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • 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
    • F16K17/0446—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 an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
    • F16K17/0453—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 an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the member being a diaphragm

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Taps Or Cocks (AREA)
FR7534366A 1975-11-03 1975-11-03 Valve de decharge pour circuits hydrauliques Granted FR2329917A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7534366A FR2329917A1 (fr) 1975-11-03 1975-11-03 Valve de decharge pour circuits hydrauliques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7534366A FR2329917A1 (fr) 1975-11-03 1975-11-03 Valve de decharge pour circuits hydrauliques

Publications (2)

Publication Number Publication Date
FR2329917A1 true FR2329917A1 (fr) 1977-05-27
FR2329917B3 FR2329917B3 (fr) 1979-06-29

Family

ID=9162256

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7534366A Granted FR2329917A1 (fr) 1975-11-03 1975-11-03 Valve de decharge pour circuits hydrauliques

Country Status (1)

Country Link
FR (1) FR2329917A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486191A1 (fr) * 1980-07-02 1982-01-08 Banyaszati Fejlesztesi Intezet Soupape limiteuse de pression, notamment pour etancons hydrauliques de mine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486191A1 (fr) * 1980-07-02 1982-01-08 Banyaszati Fejlesztesi Intezet Soupape limiteuse de pression, notamment pour etancons hydrauliques de mine

Also Published As

Publication number Publication date
FR2329917B3 (fr) 1979-06-29

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