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    • 2. 发明授权
    • Hydraulic rotary machine
    • 液压旋转机
    • US08087903B2
    • 2012-01-03
    • US12310523
    • 2007-08-23
    • Kazuaki YokoyamaYoshinori TakeuchiHaruo Kokubun
    • Kazuaki YokoyamaYoshinori TakeuchiHaruo Kokubun
    • F04B1/12F04B27/08
    • F04B1/124F04B1/2035
    • In a hydraulic rotary machine having rotational shaft provided within a casing a rotational shaft, a cylinder block rotationally interlocked with the rotational shaft and formed with a plural number of cylinder bores, and pistons slidably received in the cylinder bores and adapted to slide back and forth within the cylinder bores while the rotational shaft and the cylinder block are put in rotation in synchronism with each other, a multitude of minute pits are formed at least either on sliding surfaces on the side of the cylinder bores, each one of the minute pits are in an elliptical shape defining a moderately sloped surface in one side and an acutely sloped surface in the other side, and the moderately sloped surfaces of the minute pits are oriented to face a direction in which said pistons are put in sliding movement in said cylinder bores under a greater load than in the other direction.
    • 在具有旋转轴的液压旋转机械中,旋转轴设置在壳体内的旋转轴,与旋转轴旋转地连接并形成有多个气缸孔的气缸体,以及可滑动地容纳在气缸孔中并适于滑动的活塞 在旋转轴和气缸体彼此同步旋转的同时在气缸孔内部,至少在气缸孔侧的滑动面上形成多个微小凹坑,每个微小凹坑 椭圆形形状限定一侧的适度倾斜的表面和另一侧的急倾斜表面,并且微小凹坑的适度倾斜的表面被定向成面对所述活塞在所述气缸孔中滑动运动的方向 在比另一个方向更大的负荷下。
    • 3. 发明申请
    • Hydraulic rotary machine
    • 液压旋转机
    • US20100178177A1
    • 2010-07-15
    • US12310523
    • 2007-08-23
    • Kazuaki YokoyamaYoshinori TakeuchiHaruo Kokubun
    • Kazuaki YokoyamaYoshinori TakeuchiHaruo Kokubun
    • F04B1/20F03C1/253F04B53/16
    • F04B1/124F04B1/2035
    • In a hydraulic rotary machine having rotational shaft provided within a casing a rotational shaft, a cylinder block rotationally interlocked with the rotational shaft and formed with a plural number of cylinder bores, and pistons slidably received in the cylinder bores and adapted to slide back and forth within the cylinder bores while the rotational shaft and the cylinder block are put in rotation in synchronism with each other, a multitude of minute pits are formed at least either on sliding surfaces on the side of the cylinder bores, each one of the minute pits are in an elliptical shape defining a moderately sloped surface in one side and an acutely sloped surface in the other side, and the moderately sloped surfaces of the minute pits are oriented to face a direction in which said pistons are put in sliding movement in said cylinder bores under a greater load than in the other direction.
    • 在具有旋转轴的液压旋转机械中,旋转轴设置在壳体内的旋转轴,与旋转轴旋转地连接并形成有多个气缸孔的气缸体,以及可滑动地容纳在气缸孔中并适于滑动的活塞 在旋转轴和气缸体彼此同步旋转的同时在气缸孔内部,至少在气缸孔侧的滑动面上形成多个微小凹坑,每个微小凹坑 椭圆形形状限定一侧的适度倾斜的表面和另一侧的急倾斜表面,并且微小凹坑的适度倾斜的表面被定向成面对所述活塞在所述气缸孔中滑动运动的方向 在比另一个方向更大的负荷下。