The invention belongs to the design field of a hydraulic control system in the plane design field and in particular relates to the field of the undercarriage emergency releasing control design. A normal releasing and retracting isolation system for a plane undercarriage is characterized in that a mechanical reversing bypass valve is additionally arranged on a pressure supplying oil line of a normal undercarriage control system, when the undercarriage is released at emergency, the bypass valve is mechanically controlled to be reversed, the pressure supplying oil line of the normal undercarriage releasing and retracting control system is switched off, and meanwhile, the normal releasing and retracting oil line is communicated for oil returning. The normal releasing and retracting isolation system for the plane undercarriage has the advantages that the quantity of attachments is reduced, the normal undercarriage releasing and retracting control system is completely isolated, and the influences of the clamping phenomenon of an undercarriage control valve and the oil returning blockage phenomenon of the normal undercarriage releasing and retracting actuating mechanism on the emergency releasing system are avoided.
Normal releasing and retracting isolation system for plane undercarriage
2015-05-27
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
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