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    System for controlling pitch variation of the blades of a propeller, a propeller, and an aircraft
    1.
    发明授权
    System for controlling pitch variation of the blades of a propeller, a propeller, and an aircraft 有权
    用于控制螺旋桨，螺旋桨和飞行器的叶片的桨距变化的系统

    公开(公告)号：US09284042B2

    公开(公告)日：2016-03-15

    申请号：US13617544

    申请日：2012-09-14

    申请人： Gérard Couderc ,  Mathilde Chouteau ,  Romuald Biest

    发明人： Gérard Couderc ,  Mathilde Chouteau ,  Romuald Biest

    IPC分类号： B64C11/38 ,  B64C11/42 ,  F01D7/00

    CPC分类号： B64C11/38 ,  B64C11/42 ,  F01D7/00

    摘要： A system (10) having a control plate (15) for controlling the pitch of the blades (5) of a propeller, a power block (20), and a directional control valve (30) for feeding said power block (20) with fluid. The power block (20) is sealed and includes at least a body in which at least one piston (22) that is secured to a piston rod (25) projecting from said body (21) is movable in translation, a repeater rod (50) connecting said piston rod (25) to said control plate (15). The control valve (30) is sealed and comprises a stationary manifold (35) and a movable manifold (40) that is movable in rotation, said stationary manifold (35) being controlled by a control lever (31) connected by repeater means (32) to said repeater rod (50). A respective pipe (60) connects each chamber (23, 24) of said power block (20) to said movable manifold (40).

    摘要翻译： 一种具有控制板（15）的系统（10），用于控制螺旋桨叶片（5）的间距，动力块（20）和方向控制阀（30），用于将所述动力块（20）与 流体。 动力块（20）被密封并且包括至少一个主体，其中固定到从所述主体（21）突出的活塞杆（25）的至少一个活塞（22）能够平移地移动，中继杆（50） ）将所述活塞杆（25）连接到所述控制板（15）。 控制阀（30）被密封并且包括可旋转移动的固定歧管（35）和可移动歧管（40），所述固定歧管（35）由控制杆（31）控制，所述控制杆通过中继器装置 ）到所述中继棒（50）。 相应的管道（60）将所述动力块（20）的每个室（23,24）连接到所述可移动歧管（40）。

    Hydraulically controlled variable pitch propeller
    2.
    发明授权
    Hydraulically controlled variable pitch propeller 有权

    公开(公告)号：US08469668B2

    公开(公告)日：2013-06-25

    申请号：US12283754

    申请日：2008-09-16

    申请人： Gerd Muhlbauer

    发明人： Gerd Muhlbauer

    IPC分类号： B64C11/38

    CPC分类号： B64C11/42 ,  B63H3/08

    摘要： Proposed is a redundant hydraulically controlled variable pitch propeller for an air, land or water craft, comprising at least two propeller blades (14) mounted in a propeller hub (12) for variable pitch control by means of a hydraulically powered piston assembly (18). In accordance with the invention the piston assembly (18) comprises two mechanically interconnected servo pistons (20, 22) each assigned an independent hydraulic circuit.