Electromechanical ventilating valve capable of controlling gas pressure inside closed cavity
A technology of gas pressure and closed cavity, which is applied to aircraft parts, aircraft power units, power unit fuel supply, etc., can solve the problems of limited adjustment, increase the structural weight of fuel tanks, etc., to increase the service life and reduce the structural weight , the effect of precise control
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[0012] figure 1 It is a schematic diagram of an embodiment of an electromechanical vent valve for controlling gas pressure in a closed cavity of the present invention. The closed cavity in this embodiment is an aircraft fuel tank. An electromechanical vent valve for controlling the gas pressure in a closed cavity of this embodiment includes an electric actuator 3 with a rotating shaft; the electric actuator 3 is sleeved on the rotating shaft to make the fuel tank communicate with the outside atmosphere or The partitioned valve 1; the controller 4 that controls the rotation of the rotating shaft of the electric actuator 3; the pressure difference between the collected fuel tank gas pressure and the outside atmospheric pressure is transmitted to the pressure difference sensor 8 of the controller 4 The controller 4 presets the upper limit and the lower limit of the aircraft fuel tank gas pressure limit range compared with the difference between the transmitted fuel tank gas press...
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