Mono-coil self-unloading type two-component electromagnetic valve

Abstract

The invention discloses a mono-coil miniaturized self-unloading type two-component electromagnetic valve structure. The mono-coil miniaturized self-unloading type two-component electromagnetic valve structure is composed of a base body (an integrated valve body), a valve element, a spring, a coil, a gasket, a magnetic isolation pad, rubber O-shaped rings and the like. The electromagnetic valve is used for controlling startup and shutdown of an engine. Through the optimal matching design of the sealing positions of two-channel propulsive agents, self-unloading is achieved through a coaxial valve element by means of the mutual differences of the two-channel propulsive agents in the directions of medium force on the valve element, the carrying capacity caused by the medium force can be substantially reduced, and it is beneficial to reduce driving loads of an electromagnet and achieve the quick-response design of the valve. According to the electromagnetic valve structure, the two-channel valve element and the unloading structure are highly integrated and the mono-coil drives two-channel supply so that the miniaturization degree of the two-component control valve can be greatly improved. The pressure adaptive capacity of the valve is greatly improved through the self-unloading structure, the improvement of the high-pressure adaptive capacity of the valve based on the theory also becomes very easy, and a new pressure working condition can be adapted only by matching the spring force with the working pressure.

Description

technical field [0001] The invention relates to a self-unloading double-component electromagnetic valve structure. Background technique [0002] In the development of the final attitude control engine for a certain type of weapon, aiming at the engine control valve for a certain medium-thrust level final speed correction, a low power, no drive circuit, miniaturization, high pressure (7MPa), and a response time of no more than 5ms were proposed. design requirements. [0003] The existing two-component fast-response control valve does not meet the system requirements, and its structure has the following characteristics: [0004] 1. Two electromagnetic coils are used to drive the on-off elements of the two medium circuits respectively, and the structure is heavy; [0005] 2. In the field of high-pressure and fast-response applications, in order to achieve unloading, it is necessary to set up unloading structures in the two channels. Many unloading structures bring about the p...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems of the existing two-component fast-response control valve with complex structure, large weight and size, the present invention provides a control valve structure with simple and compact structure and self-unloading, which can adapt to high pressure, fast response, low Power, miniaturization and other application requirements

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