PNEUMATIC VALVE Russian patent published in 2014 - IPC F16K31/06 

FIELD: machine building.

SUBSTANCE: pneumatic valve includes a body, and a seat with a valve. Sealing surface of the seat is located on the side opposite to an inlet nozzle. Valve is installed so that it is borne against a two-arm lever. One arm of the above two-arm lever is hinged to a spring-loaded stock, and the other one is fixed with a hammer catch when the valve is in closed position. The hammer catch is fixed on the pneumatic valve body and fixed with a lock pin. Besides, the hammer catch is installed so that it can contact the stock of a pyro actuator fixed on the pneumatic valve body. The above pyro actuator consists of a cylinder with a plug, two in-series installed pistons that form two disengaged working cavities. Each of the above cavities is interconnected with a separate chamber equipped with a pyrotechnic cartridge. At actuation of pyrotechnic cartridges of any or both chambers the piston of the pyrotechnic cartridge interacts with the hammer catch.

EFFECT: implementation of the invention allows providing its multiple use, quick action that is numbered into several thousandths of a second and sufficient flow cross-section.

1 cl, 2 dwg