IMPROVED VALVE FOR A CONTAINER, PREFERABLY A CYLINDER CONTANING HIGH PRESSURE GAS

摘要

The present invention relates to an improved valve ( 1 ) for a container ( 2 ), preferably a cylinder containing high pressure gas, comprising a body ( 3, 4 ), provided on a orifice of said container ( 2 ), said body ( 3, 4 ) providing a cavity wherein means ( 12, 14 ) are provided for actuating a shutter ( 11 ) suitable to close said container ( 2 ) orifice, said valve ( 1 ) being characterised in that said activation means ( 12, 14 ) comprise means ( 16 ) made up of shape memory alloy; and in that it comprises means for modifying temperature of said activation means ( 16 ), so as to permit change of state of said alloy from martensitic state into austenitic state and vice versa, said activation means ( 16 ) thus varying their shape causing translation of said shutter ( 11 ) and thus opening of said valve by said activation means ( 12, 14 ).