Cantilevered breakaway fuel and oxidizer release专利检索-氧化剂阀阀阀门专利检索查询-专利查询网

Cantilevered breakaway fuel and oxidizer release

阅读：673发布：2022-04-18

专利汇可以提供Cantilevered breakaway fuel and oxidizer release专利检索，专利查询，专利分析的服务。并且A normally closed propellant isolation valve utilized in a missile propulsion system is actuated by propellant tank pressure to rupture a diaphragm and allow pressurized gas to flow into a cavity between two opposed pistons which are joined by a frangible tie. When the cavity pressure reaches a predetermined level, the tie fractures and allows the pistons to separate. Each piston then strikes and breaks an adjacent cantilever cup to simultaneously open oxidizer and fuel orifices. Each piston also moves its cup out of the flow path, thereby eliminating the effect of any pressure drop variation on the system mixture ratio.，下面是Cantilevered breakaway fuel and oxidizer release专利的具体信息内容。

权利要求

1. A propellant isolation valve actuated by propellant tank pressurization gas comprising: a valve housing having a gas inlet port centrally positioned with spaced oxidizer and fuel ports located on opposite sides of said gas inlet port; said housing also having spaced oxidizer and fuel outlet ports on opposite sides of the gas inlet port; a frangible diaphragm located in said gas inlet port and designed to be ruptured by the tank pressurization gas; a pair of frangible cantilever cups with one cup blocking the oxidizer port and the other cup blocking the fuel port; piston means positioned in said valve housing and adapted to be actuated by tank pressurization gas after rupture of the burst diaphragm; the piston means including a pair of opposed pistons joined in the inactive position by a frangible tension tie, said tie being broken by the tank pressurization gas; said piston means designed to maintain separate oxidizer and fuel chambers within the valve and when actuated to simultaneously break the cantilever cups and thereby open the oxidizer and fuel ports in the valve housing.

2. The isolation valve as defined in claim 1 wherein: the burst diaphragm is designed to rupture at 750 + or - 50 p.s.i.g. and the frangible tension tie breaks at 500 p.s.i.g.

3. The isolation valve as defined in claim 1 wherein: the fuel and oxidizer cantilever cups are provided with notched webs to ensure that said cups are moved out of the fuel and oxidizer flow path when broken by the actuated piston means.

4. The isolation valve as defined in claim 1 wherein: O-rings are positioned between the piston means and the valve housing and rolling diaphragm seals are attached to the piston means and to the valve housing to prevent oxidizer and fuel leakage.

5. The isolation valve as defined in claim 1 wherein: spaced oxidizer and fuel vents are located in the valve housing to provide adequate removal of oxidizer and fuel in the event of valve failure.

6. A propellant isolation valve actuated by propellant tank pressurization gas comprising: a valve housing having a gas inlet port centrally positioned with spaced oxidizer and Fuel ports located on opposite sides of said gas inlet port; said housing also having spaced oxidizer and fuel outlet ports on opposite sides of the gas inlet port; a frangible diaphragm located in said gas inlet port and designed to be ruptured by the tank pressurization gas; a pair of frangible cantilever cups with one cup blocking the oxidizer port and the other cup blocking the fuel port; piston means positioned in said valve housing and adapted to be actuated by tank pressurization gas after rupture of the burst diaphragm; said piston means designed to maintain separate oxidizer and fuel chambers within the valve and when actuated to simultaneously break the cantilever cups and thereby open the oxidizer and fuel ports in the valve housing; each end of said valve housing is closed by an end cup having spaced parallel arms extending within the valve housing, said arms adapted to guide the cantilever cup out of the flow path.

7. The isolation valve as defined by claim 6 wherein: an insert is positioned in each end cap to provide the valve with structural mounting capability.

说明书全文

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Cantilevered breakaway fuel and oxidizer release

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