| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure release valve using a pressing means which is not stronger, without reducing the critical pressure of a fluid required for opening the valve. SOLUTION: A fluid pressure release valves (2; 38) is composed of an opening (22; 52), valve means (14, 16, 18; 54, 56 and 58) attached movably and a pressing means (8; 44) and the valve means are located to mutually propagate fluids and pressures. Thus, a closing force F2 is additionally applied to the valve means by the propagated fluid pressure and a critical force Ft is generated together with a pressure Fb. |
