The invention discloses a differential type precise pressure regulating device for a propeller speed regulator. A left ring oil cavity and a right ring oil cavity are arranged between a left housing and a speed regulator housing; a communication oil hole, a left through oil hole, a middle through oil hole and a right oil return hole are formed in the right housing; a spring I sleeves a spring leftbase and a spring right base; the left end of a secondary pressure-regulating valve abuts against the spring right base, and the right end of the secondary pressure-regulating valve abuts against a slide valve; ring oil cavities I, II and III are formed between a valve sleeve and the right housing; left and right ring cavities are arranged between a valve element and the valve sleeve; left and right oil inlets and an oil return hole are formed in the wall of the valve sleeve; a spring II sleeves the valve element in the right ring cavity; the left oil inlet communicates with the left ring cavity and the ring oil cavity I; the right oil inlet communicates with the ring oil cavity II; the oil return hole communicates with the ring oil cavity III; the left through oil hole communicates withthe left ring oil cavity and the ring oil cavity I; the left ring oil cavity communicates with a large-torque oil path; the middle through oil hole communicates with the right ring oil cavity and thering oil cavity III; the right oil return hole communicates with the right ring oil cavity; the right ring oil cavity communicates with an oil inlet of a gear pump; and the right oil return hole is sealed by the slide valve. The differential type precise pressure regulating device precisely and quickly controls rotation speed of a propeller, and is high in reliability.

    本发明公开了一种螺旋桨调速器差动式压力精密调节装置,右壳体与调速器壳体之间有左、右环油腔,右壳体上有连通油孔、左、中通油孔和右回油孔;弹簧Ⅰ套在弹簧左、右座上;二级调压阀左端顶弹簧右座,右端抵滑阀,阀套与右壳体之间有环油腔Ⅰ、Ⅱ、Ⅲ;阀芯与阀套之间有左、右环腔,阀套壁上有左、右进油孔和回油孔,右环腔内的阀芯上套有弹簧Ⅱ;左进油孔连通左环腔和环油腔Ⅰ,右进油孔连通环油腔Ⅱ,回油孔连通环油腔Ⅲ;左通油孔连通左环油腔和环油腔Ⅰ,左环油腔连通大矩油路,中通油孔连通右环油腔和环油腔Ⅲ,右回油孔连通右环油腔;右环油腔连通齿轮泵进油口;滑阀封住右回油孔。本发明对螺旋桨转速操控精确快速、可靠性高。


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    Title :

    Differential type precise pressure regulating device for propeller speed regulator


    Additional title:

    一种螺旋桨调速器差动式压力精密调节装置


    Contributors:
    CHEN SHUANGSHUANG (author) / HAO LI (author) / ZHANG HEFANG (author) / WANG CHUNHUI (author)

    Publication date :

    2020-05-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B64C AEROPLANES , Flugzeuge



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