Electromagnetic pilot pneumatic control valve for opening and closing double-active control
A pneumatic control valve, dual-active technology, applied in valve details, multi-port valves, valve devices, etc., can solve the problem of difficult to meet the requirements of rapid shutdown and deceleration of the engine, slow shutdown response, etc., to improve starting acceleration and shutdown deceleration. responsiveness, on and off responsiveness, and reliable action
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[0040] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments:
[0041] Such as figure 1 As shown, an electromagnetic pilot pneumatic control valve with dual active control for opening and closing includes a main valve 1, an opening auxiliary valve 2 and a closing auxiliary valve 3; both the opening auxiliary valve 2 and the closing auxiliary valve 3 are solenoid valves.
[0042] Among them, the main valve 1 includes a main valve body 4, a main valve core 5 and a main valve spring 6.
[0043] The main valve body 4 is provided with a medium inlet and a medium outlet; the main valve core 5 is sealed in the main valve body 4, and two independent air chambers are formed in the main valve body 4, which are the open air chamber 9 and the closed air chamber. Cavity 8. The main spool 5 is divided into an upper spool, a middle spool and a lower spool; above the upper spool is the open air chamber ...
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