| 摘要 |
An auto cryogenic high pressure valve for a liquid fuel rocket is provided to improve safety of fuel or oxidizer supply pipes and valves by installing an avoidance line to prevent pressure rise due to vaporized gas. An auto cryogenic high pressure valve for a liquid fuel rocket comprises a PCTFE gasket(3), a return spring(1), a piston and a rod(5). The PCTFE gasket is coupled to a fluid inlet(17,18) of the valve in a screw-type. The return spring is built in a housing(16). L-O2 and L-NG use the force of restitution of the spool(2) and return spring and is blocked to be flowed into the valve. The return spring operates a constant part to prevent damage in case of excessively moving with compressive force. An abrasion ring(8,15), a U-packing(6) and a back up ring(7) are used in order to prevent the unnecessary leak of the housing.
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