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    • 10. 发明公开
    • Double-effect hydraulic actuating cylinder
    • HYDRAULISCHE DOPPELTWIRKENDE ZYLINDER ANORDNUNG
    • EP2848822A1
    • 2015-03-18
    • EP14184668.3
    • 2014-09-12
    • Ultraflex Spa
    • Gai, MarcellaPagani, EnricoFuccaro, Alberto
    • F15B15/14B63H20/12B63H20/00
    • F16J1/12B63H20/12F15B15/1428F15B15/1433F15B15/1442F15B15/1461F15B2211/7054
    • Double-effect hydraulic actuating cylinder (1), particularly for hydraulic steering devices in particular for marine outboard motors (5).
      The cylinder (1) is slidably fitted on at least one rod (2) coaxial to the cylinder (1), or vice versa, which (2) sealingly projects out of at least one head of the actuating cylinder (1) and it carries a separating piston (21) which divides the cylinder into two variable volume chambers (11, 12), each of which two chambers (11, 12) has at least one hydraulic fluid inlet/outlet, each being connected to one of two inlets/outlets of the pump and a sealing head (3) for mutually sliding cylinder (1) and rod (2) which sealing head (3) is integral with the cylinder.
      The rod (2) is connected to one bracket (4) for fastening the cylinder (1) to the motor, in a non slidable manner and such to allow the relative rotation of the motor (5) with respect to the transom according to an axis parallel to the axis of the rod (2).
      There is further provided an idler arm (7) secured to the motor (5) and integral with the cylinder (1) for steering the motor (5).
      At least one of the sealing heads (3) is composed of two separate elements, of which a sealing element (31) and a plug element (32), the sealing element (31) being sealingly fitted into one of said two variable-volume chambers (11, 12), said sealing element (31) engaging the inner side walls of the chamber (11, 12).
      Moreover the plug element (32) is placed at the end parts of the cylinder (1), such to prevent the sealing element (31) from sliding, the sealing element (31) and the plug element (32) being coaxial with respect to the rod (2).
    • 双效液压执行油缸(1),特别适用于液压转向装置,特别适用于船用舷外马达(5)。 气缸(1)可滑动地装配在与气缸(1)同轴的至少一个杆(2)上,反之亦然,(2)从致动缸(1)的至少一个头部密封地突出,并且其携带 分离活塞(21),其将所述气缸分成两个可变容积室(11,12),每个腔室(11,12)中的每一个具有至少一个液压流体入口/出口,每个液压流体入口/出口连接到两个入口/ 泵的出口和用于相互滑动的气缸(1)和密封头(3)与气缸成一体的密封头(3)。 杆(2)连接到一个支架(4),用于将气缸(1)以不可滑动的方式紧固到电动机,并且允许马达(5)相对于横梁相对于根据 轴平行于杆(2)的轴线。 还设置有固定到马达(5)并与气缸(1)成一体的惰轮(7),用于转向马达(5)。 密封头(3)中的至少一个由两个单独的元件组成,密封元件(31)和插塞元件(32),密封元件(31)密封地装配到所述两个可变容积 室(11,12),所述密封元件(31)与腔室(11,12)的内侧壁接合。 此外,插塞元件(32)被放置在气缸(1)的端部,以防止密封元件(31)滑动,密封元件(31)和插塞元件(32)相对于 杆(2)。