Single-valve core and double-channel solenoid valve

A dual-channel, solenoid valve technology, applied in valve details, multi-port valves, valve devices, etc., can solve the problems of heavy weight, complex structure, difficult to fully synchronize opening and closing, etc., to reduce volume and weight, and improve safety. the effect of improving the sealing performance
CN101446244AInactive Publication Date: 2009-06-03NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH
Publication Date
2009-06-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a single-valve core and double-channel solenoid valve, solving the technical problem that the two channels of the existing solenoid valve can not be easily or synchronously opened and closed, the structure is relatively complex and the weight is heavier. The single-valve core and double-channel solenoid valve comprises a valve body, a valve core and a coil, wherein, the valve core is matched with the valve body for guiding, the valve core generates electromagnetic attraction under the action of the magnetic field of the coil, an axially installed cylindrical spring is arranged between the valve core and the valve body, and a first channel and a second channel which are mutually independent are arranged on the valve body, and the first channel is sealed after a first valve seat is matched with the valve core; the second channel is sealed after a second valve seat is matched with the valve core; and the sealing between the first valve seat and the valve core as well as between the second valve seat and the valve core adopts a combined type soft-hard sealing structure. The invention has the advantages of rapid response, light weight, small volume and good consistency of the action.
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Description

technical field

[0001] The invention relates to a direct-acting dual-channel electromagnetic valve. Background technique

[0002] The dual-component engine is a propulsion device that provides power for the maneuvering flight of various aerospace vehicles. It changes the direction of the aircraft multiple times in space according to the program, and realizes the orbit change and attitude adjustment of the aircraft. The solenoid valve is an important component of the dual-component engine. , used to control multiple starts and pulse work of the engine. Solenoid valves of existing bicomponent engines mainly include direct-acting solenoid valves and electric gas valves. The direct-acting solenoid valve is mainly composed of a single coil and a single spool, and is used to control a single channel. A dual-component engine needs to be controlled by two direct-acting solenoid valves, which increases the number of control circuits and improves the installation efficiency. Difficu...

Claims

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