| 摘要 |
Valve intended to ensure the exit of gas from a casing 1 of the accumulator type and to avoid the penetration of water or solid bodies to the inside D of the casing 1. It comprises an elastic membrane 2 pierced with holes 20, 24 constituted by slots; this membrane covers a portion of the casing 1 pierced by holes 10, 13. So long as the pressure inside the casing is not sufficient to lift the membrane, the latter remaining flat on the wall of the casing, ensures the sealing of the casing; when the membrane is lifted up by overpressure inside the casing the lips of the slots open and the gas can escape XX', YY'. A pierced cap 3 can cover the membrane. Application to batteries of accumulators. <IMAGE> |
