A high-pressure unloading gunpowder gas actuated valve

Abstract

The invention relates to a high-pressure unloading type gunpowder gas actuating valve, which aims to solve the problems that the electric explosion valve in the prior art can only be within a certain pressure range, the chips cannot be processed in time, the production cost is high, and the wedge-tightening positioning is not reliable. . The invention includes an electric squib, a base body, a blind tube and a cutter assembly; the left end of the base body is provided with an electric squib, two blind tubes are symmetrically installed at the right end of the base body along the circumferential direction, and a cutter assembly is installed inside the base body; The assembly includes a large-diameter driving section, a small-diameter cutting section, and a small-diameter unloading section sequentially connected from left to right; a gas fire-blocking sealing ring is arranged between the outer wall of the large-diameter driving section and the inner wall of the base; Flow hole; two symmetrical grooves are arranged on the right part; an unloading sealing ring is arranged between the small diameter unloading section and the base body; the closed end of the blind pipe passes through the base body and cooperates with the groove; The right side is also provided with a cavity for accommodating the small-diameter cutting segment and a cavity for wedging the cutter assembly and the base body.

Description

technical field [0001] The invention relates to a propellant gas actuated valve, in particular to a high-pressure unloading propellant gas actuated valve. Background technique [0002] The high-pressure unloading gunpowder gas actuated valve is one of the important automaton components in the rocket star propulsion system, and it plays a role in fluid control in the system. The valve is operated by the high-pressure gas produced by the combustion and explosion of gunpowder, and the metal-to-metal wedge-tight sealing structure is used to ensure the sealing. It can be operated with a small pulse power supply, so it is widely used in the rocket propulsion system that works at one time. [0003] The existing electric explosion valve has the following problems: [0004] 1) In the existing electric explosion valves, non-unloading structures are mostly used, resulting in the reliability of its movement being related to the working pressure seal, causing the electric explosion val...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a high-pressure unloading type to solve the problems in the prior art that the electric explosion valve can only be operated within a certain pressure range, the chips cannot be disposed of in time, the production cost is high, and the wedge tight positioning is not reliable. Gunpowder Gas Actuated Valve

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