GB1151801A - Valve Mechanism for Hydraulic Systems. - Google Patents

Valve Mechanism for Hydraulic Systems.

Info

Publication number
GB1151801A
GB1151801A GB870567A GB870567A GB1151801A GB 1151801 A GB1151801 A GB 1151801A GB 870567 A GB870567 A GB 870567A GB 870567 A GB870567 A GB 870567A GB 1151801 A GB1151801 A GB 1151801A
Authority
GB
United Kingdom
Prior art keywords
prop
plunger
bush
chambers
piston
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
GB870567A
Inventor
Viktor Nikiforovich Ignatov
Lev Ilich Peker
Boris Vasilievich Martynov
Vladimir Vasilievich Sukhov
Boris Nikolaevich Selivokhin
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.)
PODMOSKOVNY G PK I EXPERIMENT
Original Assignee
PODMOSKOVNY G PK I EXPERIMENT
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 PODMOSKOVNY G PK I EXPERIMENT filed Critical PODMOSKOVNY G PK I EXPERIMENT
Priority to GB870567A priority Critical patent/GB1151801A/en
Publication of GB1151801A publication Critical patent/GB1151801A/en
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
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves

Landscapes

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

Abstract

1,151,801. Valves. PODMOSKOVNY GOSUDARSTVENNY PROEKTNOKONSTRUKTORSKY I EXPERIMENTALNY INSTITUT GORNOGO MASHINOSTROENIA. 23 Feb., 1967, No. 8705/67. Heading F2V. A valve for operating an hydraulic jack, e.g. a mine roof support, comprises a plunger 3 sealed to a housing bore by an elastic sealing ring 2. A second sealing ring 11 seals the plunger in a spring-biased bush 8. On supplying pressure fluid to a chamber 4, the plunger moves out of the bore into the bush 8 whereby the ring 2 is protected, the plunger first lifting a spring- biased pin 14 and then lifting the bush from a seating round the bore. The fluid passes to the prop through chambers 4 and 6 and the prop is extended. To collapse the prop, the pressure fluid is supplied through a piston chamber 17 having an outlet (not shown) to the upper end of the prop. This pressure reopens the valve through the piston 7 engaging a tail end of the plunger, and the lower end of the prop is exhausted by reverse flow through the chambers 6-4. A relief valve (21), Fig. 2 (not shown), may be connected between the chambers 5, 6. Piston 7 may be actuated manually.
GB870567A 1967-02-23 1967-02-23 Valve Mechanism for Hydraulic Systems. Expired GB1151801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB870567A GB1151801A (en) 1967-02-23 1967-02-23 Valve Mechanism for Hydraulic Systems.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB870567A GB1151801A (en) 1967-02-23 1967-02-23 Valve Mechanism for Hydraulic Systems.

Publications (1)

Publication Number Publication Date
GB1151801A true GB1151801A (en) 1969-05-14

Family

ID=9857658

Family Applications (1)

Application Number Title Priority Date Filing Date
GB870567A Expired GB1151801A (en) 1967-02-23 1967-02-23 Valve Mechanism for Hydraulic Systems.

Country Status (1)

Country Link
GB (1) GB1151801A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4967791A (en) * 1989-04-26 1990-11-06 The Boeing Company Pressure activated check valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4967791A (en) * 1989-04-26 1990-11-06 The Boeing Company Pressure activated check valve

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees