A dual-component variable flow electromagnetic pilot pneumatic control valve

A pneumatic control valve and variable flow technology, which is used in combustion engines, machines/engines, jet propulsion devices, etc., and can solve the problems of large space occupied by control valves, high structural weight, unfavorable structural optimization, and small and lightweight design. , to achieve the effect of small and lightweight design, reducing the spring force

Active Publication Date: 2022-07-05
XIAN AEROSPACE PROPULSION INST
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing control valves used for dual-component variable thrust engines occupy a large space and have high structural weight, which is not conducive to structural optimization and small and lightweight design, and leads to multiple dual-component variable thrust engines. Due to the shortcomings of the space layout and the difficulty of final assembly during engine assembly, a dual-element variable flow electromagnetic pilot pneumatic control valve is provided.

Method used

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  • A dual-component variable flow electromagnetic pilot pneumatic control valve

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Embodiment Construction

[0024] The present invention will be further described below with reference to the accompanying drawings and exemplary embodiments.

[0025] refer to figure 1 , a dual-component variable flow electromagnetic pilot pneumatic control valve, comprising a first auxiliary valve 11 , a second auxiliary valve 12 , a first main valve 13 and a second main valve 14 .

[0026] The first auxiliary valve 11 and the second auxiliary valve 12 are electromagnetic pilot valves, both of which have the same structure, including auxiliary valve body 21, auxiliary valve core 22, auxiliary valve coil 23 and auxiliary valve spring 24; auxiliary valve body 21 is provided with The intake port 25 and the exhaust port 26; the sub valve body 21 is provided with a sub valve core 22, one end of the sub valve core 22 corresponds to the intake valve seat, the other end corresponds to the exhaust port 26, and the end of the sub valve core 22 corresponds to the intake valve seat. The auxiliary valve spring 24...

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Abstract

The invention relates to a dual-component control valve, in particular to a dual-component variable flow electromagnetic pilot pneumatic control valve, which solves the problem that the existing control valve used for a dual-component variable thrust engine occupies a large space and has a high structural weight. It is conducive to structural optimization and small and lightweight design, and leads to the insufficiency of space layout and increased difficulty in assembly when multiple two-component variable thrust engines are assembled. The dual-component variable flow electromagnetic pilot pneumatic control valve includes a first auxiliary valve, a second auxiliary valve, a first main valve and a second main valve. The invention integrates two-way dual-component medium channels and two-way control gas channels, realizes the synchronous variable flow control of the dual-component medium, and carries out integrated optimization in the structure space, and realizes the synchronous variable flow and fast switch control. At the same time, the design of small structure and weight reduction of the control valve is completed.

Description

technical field [0001] The invention relates to a dual-component control valve, in particular to a dual-component variable flow electromagnetic pilot pneumatic control valve. Background technique [0002] In the development of the orbital attitude control engine, in order to meet the fast start and shutdown control requirements of the high-performance two-component variable thrust engine, the development of a control valve that can meet the synchronous variable flow and on-off control of the dual medium is proposed. [0003] In order to realize the synchronous variable flow and switch control of two-way media, four main spools are usually required for regulation. The independent assembly takes up a lot of space and the weight of the structure is high, which is not conducive to structural optimization and small and lightweight design. When the power system is equipped with multiple two-component variable thrust engines, the space layout and assembly are more difficult, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/58
CPCF02K9/58Y02T10/12
Inventor 罗大亮朱建国周学锋梁树强张萍
Owner XIAN AEROSPACE PROPULSION INST
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