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    Devices for operating variable-pitch propellers
    1.
    发明授权
    Devices for operating variable-pitch propellers 失效
    用于变桨距推进器的设备

    公开(公告)号：US4229141A

    公开(公告)日：1980-10-21

    申请号：US895106

    申请日：1978-04-10

    申请人： Jose Luis de Francisco Mesado

    发明人： Jose Luis de Francisco Mesado

    IPC分类号： B63H3/08 ,  B63H1/06

    CPC分类号： B63H3/082 ,  B63H2003/084 ,  B63H2003/088

    摘要： A propeller includes a hub having mounted on the central end part thereof a rotating fitting which permits the passage therethrough of a fluid circulating within two conduits which pass longitudinally of the fitting. The fluid operates on opposite ends of an annular piston to impart thereto rectilinear movement, which in turn is transformed into rotation of the blades of the propeller due to lugs extending from the piston and being eccentrically engaged with the blades. The hub of the propeller is completely free to turn without affecting the driving shaft. The assembly is positioned completely outside the stern of the ship.

    摘要翻译： 螺旋桨包括在其中心端部安装有旋转配件的轮毂，该旋转配件允许在两个通过配件纵向的管道中循环的流体通过。 流体在环形活塞的相对端上运行，以赋予其直线运动，该运动又由于从活塞延伸并与叶片偏心接合而转变成螺旋桨叶片的旋转。 螺旋桨的轮毂完全自由转动而不影响驱动轴。 组件完全位于船尾的完整位置。

    Controllable pitch propellers for marine vessels
    2.
    发明授权
    Controllable pitch propellers for marine vessels 失效
    海洋船只可控式螺旋桨

    公开(公告)号：US3778187A

    公开(公告)日：1973-12-11

    申请号：US3778187D

    申请日：1971-04-13

    申请人： PROPULSION SYSTEMS INC

    发明人： WENNBERG P

    IPC分类号： B63H3/08

    CPC分类号： B63H3/082 ,  B63H2003/088

    摘要： In a controllable pitch propeller arrangement of the type having a hydraulic piston-and-cylinder type motor in the propeller hub for effecting pitch settings, the power oil is passed to and from the motor through oil tubes nested in the hollow propeller shaft, and the follow-up or feedback member, which gives read-out of actual pitch, is relatively isolated from the temperature effects of the power oil, preferably by arranging the follow-up or feedback member as the central member of a nested arrangement in which the power oil tubes are radially spaced from the feedback member about the circumference of the nested assembly. Preferably the feedback member and the oil tubes are arranged as a unitary bundle, made up of several sections, and the oil tubes of each section are provided with sliding seals at the section coupling, whereby thermal expansion and contraction of the oil tubes is absorbed by the sliding seals in each section and will not affect the overall length of the bundle or the feedback member, thus preventing or minimizing erroneous pitch feedback signals. The follow-up member preferably is tubular, and an air tube passes therethrough to feed air to the propeller blades.

    摘要翻译： 在具有用于实现桨距设定的螺旋桨轮毂中的具有液压活塞和圆柱型电动机的类型的可调俯仰螺旋桨装置中，动力油通过嵌套在中空推进器轴中的油管被传递到电动机和从电动机传递， 优选地通过将后续或反馈构件设置为嵌套布置的中心构件，其中电源的温度效应与功率油的温度效应相比较，与读出实际间距的跟踪或反馈构件相比较，其中功率 油管围绕嵌套组件的圆周与反馈构件径向间隔开。 优选地，反馈构件和油管被布置为由多个部分组成的整体束，并且每个部分的油管在区段联接处设置有滑动密封件，由此油管的热膨胀和收缩被 每个部分中的滑动密封件并且不会影响束或反馈构件的总长度，从而防止或最小化错误的俯仰反馈信号。 后续构件优选地是管状的，并且空气管穿过其中以将空气供给到螺旋桨叶片。