| 摘要 |
Diaphragms (1, 4, 7, 15) are composed of a rubber-like elastic material (2, 5, 8, 16) and sheet-like members (3, 6, 9, 17) made up of metal foils or members impermeable to gas, such as a resin membrane etc. This diaphragm is used for such equipment as an accumulator etc., in such a manner that said diaphragm forms on one side a part of a pressure chamber (13) charged with a gas in advance and on the other side a part of a chamber (14) which communicates with flow passages, so that pressurized gas in the pressure chamber (13) is prevented from leaking to the chamber (14) communicating with the flow passages for a long period of time. |
