VALVE HYDRAULIQUE DE SECURITE POUR LE COULISSEMENT D'UN VERIN DE SOUTENEMENT DANS LES MINES

L'INVENTION CONCERNE UNE VALVE DE SECURITE DE SURPRESSION, NOTAMMENT POUR UN VERIN DE SOUTENEMENT DANS LES MINES.LE PIED ARRIERE 27 DU JOINT ELASTIQUE 18 EST COMPRIME DANS LE COUSSIN GAZEUX 15. SON LAMAGE AVANT RECOIT LE CLAPET 17 QUI OBTURE L'ORIFICE DE SORTIE 8 ET LA RONDELLE D'APPU...

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Bibliographic Details
Main Author ROGER CHANAL ET DANIEL COTTE
Format Patent
LanguageFrench
Published 31.05.1985
Edition4
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
EARTH DRILLING
ENGINEERING ELEMENTS AND UNITS
FIXED CONSTRUCTIONS
GALLERIES
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LARGE UNDERGROUND CHAMBERS
LIGHTING
MECHANICAL ENGINEERING
MINING
SHAFTS
TAPS
THERMAL INSULATION IN GENERAL
TUNNELS
VALVES
WEAPONS
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Summary:L'INVENTION CONCERNE UNE VALVE DE SECURITE DE SURPRESSION, NOTAMMENT POUR UN VERIN DE SOUTENEMENT DANS LES MINES.LE PIED ARRIERE 27 DU JOINT ELASTIQUE 18 EST COMPRIME DANS LE COUSSIN GAZEUX 15. SON LAMAGE AVANT RECOIT LE CLAPET 17 QUI OBTURE L'ORIFICE DE SORTIE 8 ET LA RONDELLE D'APPUI 16.APPLICATION : STRUCTURE SIMPLE ET MINIATURISEE; SECURITE ACCRUE. A safety valve designed for relieving pressure in a mine support jack. A washer and check valve are positioned in a counterbore located on the front surface of a resilient gasket member. A leg extends from the rear surface of the resilient gasket and extends through a rear chamber to support the check valve in a position sealing the outlet port. The rear chamber is filled with pressurized gas to form a gas cushion. The end of the leg is positioned to seal an inflation orifice.
Bibliography:Application Number: FR19830019175