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137 条记录 (耗时 0.015 秒)

    Swash plate type hydraulic pump or motor
    77.
    发明申请
    Swash plate type hydraulic pump or motor 审中-公开
    斜盘式液压泵或电机

    公开(公告)号：US20050095144A1

    公开(公告)日：2005-05-05

    申请号：US10950686

    申请日：2004-09-28

    申请人： Takeo Shimizu

    发明人： Takeo Shimizu

    IPC分类号： F01B3/00 ,  F03C1/06 ,  F03C1/24 ,  F03C1/26 ,  F04B1/20 ,  F04B1/22 ,  F04B3/00

    CPC分类号： F04B1/205 ,  F01B3/0035 ,  F04B1/22

    摘要： A swash plate type hydraulic pump or motor has a first swash plate (30) and a second swash plate (40) which cause a first piston (8) and a second piston (9), respectively, to move reciprocally, opposing each other, so as to expand and contract a volume chamber (10) according to rotation of a cylinder block (4). A rod shape valve body (60) is disposed pushed into a through hole (12) of a shaft axis of the cylinder block (4) so as to be free to rotate relative to the cylinder block (4). A pair of supply and discharge ports (61) that open and supply high pressure and low pressure, respectively, are formed in an outer circumferential surface of the valve body (60). A cylinder port (11) is formed connecting the volume chamber (10) and an inner circumferential surface of the through hole of the cylinder block. The cylinder port (11) is arranged in a position opposite to the supply and discharge port (61).

    摘要翻译： 旋转斜盘式液压泵或电动机具有分别使第一活塞（8）和第二活塞（9）互相往复移动的第一斜盘（30）和第二斜盘（40） 以便根据气缸体（4）的旋转来膨胀和收缩容积室（10）。 杆形阀体（60）被推入气缸体（4）的轴心的通孔（12）中，以相对于气缸体（4）自由旋转。 在阀体（60）的外周面分别形成有一对供给高压低压的供给排出口（61）。 形成连接容积室（10）和气缸体的通孔的内圆周表面的气缸端口（11）。 气缸端口（11）布置在与供排口（61）相对的位置。

    Rotational hydraulic transformer
    78.
    发明授权
    Rotational hydraulic transformer 失效
    旋转液压变压器

    公开(公告)号：US6109884A

    公开(公告)日：2000-08-29

    申请号：US91193

    申请日：1998-06-09

    申请人： Yasuo Kita

    发明人： Yasuo Kita

    IPC分类号： F15B15/12 ,  F03C1/24 ,  F03C1/247 ,  F03C1/26 ,  F04B1/06 ,  F04B27/04 ,  F15B15/18

    CPC分类号： F03C1/247 ,  B60G2202/22

    摘要： A rotational hydraulic transformer for boosting system pressure of a hydraulic system, which is continuous, compact and has little pulsation, comprises: a first volume increasing/decreasing mechanism Y1 for cyclically and continuously increasing/decreasing the volume of a plurality of first annularly arranged spaces 8, by shifting the phase of each, by means of employing relative positional change of two relative moving members 1 and 3; a second volume increasing/decreasing mechanism Y2 for cyclically and continuously increasing/decreasing the volume of a plurality of second annularly arranged spaces, by shifting the phase of each, the second volume increasing/decreasing mechanism Y2 sharing the two relative moving members 1 and 3, and performing the increasing/decreasing by means of employing relative positional change of the two relative moving members; a pair of first channels A01 and A02, wherein one channel is connected to said first spaces of which the volume is increasing while the other channel is connected to said first spaces of which the volume is decreasing; and a pair of second channels B01 and B02, wherein one channel is connected to said second spaces of which the volume is increasing while the other channel is connected to said second spaces of which the volume is decreasing; wherein the increasing/decreasing volume of the first spaces 8 in one cycle is made to be different from that of the second spaces 9 in one cycle.

    摘要翻译： PCT No.PCT / JP97 / 03693 371日期1998年6月9日第 102（e）日期1998年6月9日PCT 1997年10月14日PCT公布。 第WO98 / 16738号公报 日期：1998年04月23日用于提高液压系统的系统压力的旋转液压变压器，其是连续的，紧凑的并且具有很小的脉动，包括：用于循环地且连续地增加/减少多个体积的第一容积增减机构Y1 通过利用两个相对移动构件1和3的相对位置变化来移动每个相位的第一环形布置空间8; 第二容积增减机构Y2，用于通过移动共享两个相对移动构件1和3的每个第二容积增减机构Y2的相位循环地且连续地增加/减小多个第二环形排列空间的体积 并且通过采用两个相对移动构件的相对位置变化来执行增加/减少; 一对第一通道A01和A02，其中一个通道连接到体积增加的所述第一空间，而另一个通道连接到体积正在减小的所述第一空间; 以及一对第二通道B01和B02，其中一个通道连接到体积增加的所述第二空间，而另一个通道连接到体积正在减小的所述第二空间; 其中一个周期中的第一空间8的增加/减小的体积在一个周期中被制成与第二空间9的不同。

    Combined mode hydrostatic transmission
    79.
    发明授权
    Combined mode hydrostatic transmission 失效
    组合式静液压传动

    公开(公告)号：US5904043A

    公开(公告)日：1999-05-18

    申请号：US929796

    申请日：1997-09-15

    申请人： Kuniyasu Nagatomo

    发明人： Kuniyasu Nagatomo

    IPC分类号： F16H39/42 ,  F03C1/24 ,  F16H39/00 ,  F16H39/02 ,  F16H45/00 ,  F16H47/02 ,  F16D31/02

    CPC分类号： F16H39/00 ,  F16H47/02

    摘要： A combined mode hydrostatic transmission comprises a differential hydraulic motor and a variable capacity hydraulic pump for supplying this motor with pressurized oil. The differential hydraulic motor comprises a swash plate connected to an output shaft and a cylinder block joined to an input shaft. Further provided are a brake which selectively brakes the rotation of the cylinder block and a clutch which selectively interrupts the input rotation to the cylinder block. When the brake is operated and fluid is supplied from the variable capacity hydraulic pump with the clutch disengaged, the differential hydraulic motor functions in a HST mode. When the brake is released, the clutch is connected and fluid is supplied from the variable capacity hydraulic pump, the differential hydraulic motor functions in a HMT mode.

    摘要翻译： 组合式静液压变速器包括差速液压马达和用于向该马达供给加压油的可变容量液压泵。 差速液压马达包括连接到输出轴的斜盘和连接到输入轴的气缸体。 进一步提供了选择性地制动气缸体的旋转的制动器和选择性地将输入旋转中断到气缸体的离合器。 当制动器运行并且离合器分离的可变容量液压泵提供流体时，差速液压马达在HST模式下起作用。 当制动器被释放时，离合器连接并且可变容量液压泵供给流体，差速液压马达以HMT模式运行。

    Variable displacement hydrostatic pump and neutral return mechanism therefor
    80.
    发明授权
    Variable displacement hydrostatic pump and neutral return mechanism therefor 失效
    可变排量静液压泵和中性返回机构

    公开(公告)号：US5234321A

    公开(公告)日：1993-08-10

    申请号：US895533

    申请日：1992-06-08

    申请人： Sven B. Gafvert

    发明人： Sven B. Gafvert

    IPC分类号： B60K11/06 ,  B60K17/10 ,  F03C1/24 ,  F03C1/26 ,  F04B1/107 ,  F04B49/12

    CPC分类号： B60K17/105 ,  F03C1/2407 ,  F03C1/26 ,  F04B1/1071 ,  F04B49/128 ,  B60K11/06 ,  Y10T74/18856 ,  Y10T74/20006

    摘要： A neutral centering spring mechanism (71) is provided for a variable displacement hydrostatic pump (25) of the type of which control of the displacement occurs in response to rotation of a control shaft (101;101'). Disposed about the control shaft is a pair of preferably identical actuator members (111,113), each of which is in engagement with a pin (115) such that clockwise rotation of the control shaft rotates one actuator member (111) while counter-clockwise rotation of the control shaft rotates the other actuator member (113). Each actuator member defines a movable stop surface (131,137), which are in engagement with fixed stop surfaces (133,139). A single torsion spring member (121) surrounds the actuator members, biasing both actuator members toward the neutral position. The neutral centering spring mechanism of the invention is relatively insensitive to manufacturing tolerances, is simple and inexpensive to manufacture, and may easily be disposed within the pump housing (29) where it is more protected from corrosion and damage, and is lubricated.

    摘要翻译： 提供了一种用于可变排量静液压泵（25）的中立定心弹簧机构（71），其中这种类型的位移控制泵响应于控制轴（101; 101'）的旋转发生位移控制。 围绕控制轴设置的是一对优选相同的致动器构件（111,113），每个致动器构件（111,113）与销（115）接合，使得控制轴的顺时针旋转使一个致动器构件（111）旋转，同时逆时针旋转 控制轴旋转另一致动器构件（113）。 每个致动器构件限定与固定止动表面（133,139）接合的可移动止动表面（131,137）。 单个扭转弹簧构件（121）围绕致动器构件，将致动构件朝向中立位置偏压。 本发明的中性定心弹簧机构对制造公差相对不敏感，制造简单且便宜，并且可以容易地设置在泵壳体（29）内，其更加防止腐蚀和损坏，并被润滑。