Hydrostatic transmission
    1.
    发明授权
    Hydrostatic transmission 失效
    静液压传动

    公开(公告)号:US06907729B1

    公开(公告)日:2005-06-21

    申请号:US10421907

    申请日:2003-04-24

    IPC分类号: B60K17/10 F16H39/14 F16D39/00

    CPC分类号: B60K17/10 F16H39/14

    摘要: A hydrostatic transmission including a closed fluid circuit is contained together with a deceleration gear mechanism in a housing filled with fluid so as to serve as a fluid sump. The hydrostatic transmission includes a check valve assembly in connection with the closed fluid circuit. The check valve assembly includes a vertically movable valve member, a valve seat, and a draining operation member being movable perpendicularly to the movement of the valve member. The check valve assembly has three functions. A first function of the check valve assembly is to lower the valve member by the gravity and hydraulic pressure in the closed fluid circuit so as to fit the valve member on the valve seat, thereby sealing the closed fluid circuit. A second function of the check valve assembly is to raise the valve member apart from the valve seat because the hydraulic pressure in the closed fluid circuit becomes lower than pressure in the fluid sump, thereby supplying fluid from the fluid sump to the closed fluid circuit. A third function of the check valve assembly is to raise the valve member apart from the valve seat by movement of the draining operation member, thereby draining fluid from the closed fluid circuit to the fluid sump.

    摘要翻译: 包括闭合流体回路的静液传动装置与减速齿轮机构一起容纳在充满流体的壳体中,以用作流体槽。 静液压传动装置包括与闭合流体回路连接的止回阀组件。 止回阀组件包括可垂直于阀构件的运动移动的可垂直移动的阀构件,阀座和排水操作构件。 止回阀组件有三个功能。 止回阀组件的第一功能是通过封闭流体回路中的重力和液压来降低阀构件,以便将阀构件安装在阀座上,从而密封封闭的流体回路。 止回阀组件的第二功能是将阀构件从阀座离开,因为封闭流体回路中的液压压力低于流体槽中的压力,从而将液体从流体池提供给闭合流体回路。 止回阀组件的第三功能是通过排水操作构件的移动使阀构件与阀座分离,从而将流体从封闭的流体回路排出到流体池。

    Transaxle
    2.
    发明授权
    Transaxle 有权
    传动桥

    公开(公告)号:US07331176B1

    公开(公告)日:2008-02-19

    申请号:US11108901

    申请日:2005-04-19

    IPC分类号: F16D39/02

    CPC分类号: B60K17/105 F16H39/14

    摘要: With regard to a transaxle comprising a housing, which houses a hydrostatic stepless transmission constructed by fluidly connecting a hydraulic pump with a hydraulic motor and an axle drivingly connected to the transmission, the housing is constructed by detachably joining a first housing element with a second housing element through a joint surface in parallel to the lengthwise direction of the axle, a counter shaft, drivingly interposed between the hydrostatic stepless transmission and the axle in the housing, is located its axis in the first housing element, a leg member is engaged with the first housing element, and one of ends of the leg member is engaged with a part of the counter shaft, and the other end of the leg member is engaged with the second housing element so as not to be movable.

    摘要翻译: 关于包括壳体的变速驱动桥,其容纳通过将液压泵与液压马达流体连接并驱动地连接到变速器的轴构成的静液力无级变速器,所述壳体通过将第一壳体元件与第二壳体 元件通过与轴的长度方向平行的接合表面,驱动地插入在静液压无级变速器和壳体中的轴之间的相反轴位于其轴线处于第一壳体元件中,腿构件与 第一壳体元件,并且腿构件的端部中的一个与对置轴的一部分接合,并且腿构件的另一端与第二壳体元件接合以便不可移动。

    Hydraulic transaxle
    6.
    发明授权
    Hydraulic transaxle 有权
    液压传动桥

    公开(公告)号:US07980351B2

    公开(公告)日:2011-07-19

    申请号:US12101724

    申请日:2008-04-11

    IPC分类号: B60K17/14

    摘要: A transaxle (1), having a hydraulic drive unit (20) and a pair of left and right wheel support units (2L and 2R), is suspended from a vehicle frame so as to be turnable around a turning-center axis oriented in a fore-and-aft direction of a vehicle. The hydraulic drive unit (20) comprises: a pair of left and right hydraulic motors (23L and 23R) having respective left and right horizontal motor shafts (23b); a center section (22) formed therein with an oil passage for hydraulically connecting at least one of the hydraulic motors to a hydraulic pump, the center section having motor attachment surfaces onto which the hydraulic motors are attached; and a pair of left and right axle casings (2L and 2R) containing the respective hydraulic motors and supporting the respective motor shafts. The pair of wheel support units (30L and 30R), supporting respective left and right travel wheels (1L and 1R), are joined to respective outer ends of the left and right axle casings, and drivingly connected to the respective motor shafts (23b).

    摘要翻译: 具有液压驱动单元(20)和一对左右车轮支撑单元(2L和2R)的变速驱动桥(1)从车架悬挂,以便可绕着位于 车辆的前后方向。 液压驱动单元(20)包括:一对具有左右水平马达轴(23b)的左右液压马达(23L和23R); 其中形成有用于将至少一个所述液压马达液压连接到液压泵的油路的中心部分,所述中心部分具有安装有所述液压马达的马达安装表面; 以及包含各液压马达并支撑各马达轴的一对左右轴箱(2L和2R)。 支撑各左右行驶轮(1L,1R)的一对车轮支撑单元(30L,30R)与左右车轴壳体的各个外端部接合,驱动连接于各电动机轴(23b) 。

    Hydraulic axle-drive device
    8.
    发明授权
    Hydraulic axle-drive device 有权
    液压轴驱动装置

    公开(公告)号:US07431122B2

    公开(公告)日:2008-10-07

    申请号:US10917557

    申请日:2004-08-13

    IPC分类号: B60K23/00

    摘要: A transaxle (1), having a hydraulic drive unit (20) and a pair of left and right wheel support units (2L and 2R), is suspended from a vehicle frame so as to be turnable around a turning-center axis oriented in a fore-and-aft direction of a vehicle. The hydraulic drive unit (20) comprises: a pair of left and right hydraulic motors (23L and 23R) having respective left and right horizontal motor shafts (23b); a center section (22) formed therein with an oil passage for hydraulically connecting at least one of the hydraulic motors to a hydraulic pump, the center section having motor attachment surfaces onto which the hydraulic motors are attached; and a pair of left and right axle casings (2L and 2R) containing the respective hydraulic motors and supporting the respective motor shafts. The pair of wheel support units (30L and 30R), supporting respective left and right travel wheels (1L and 1R), are joined to respective outer ends of the left and right axle casings, and drivingly connected to the respective motor shafts (23b).

    摘要翻译: 具有液压驱动单元(20)和一对左右轮支撑单元(2L和2R)的变速驱动桥(1)从车架悬挂以能够围绕转向中心轴定向 在车辆的前后方向。 液压驱动单元(20)包括:一对具有左右水平电动机轴(23b)的左右液压马达(23L和23R); 其中形成有用于将至少一个所述液压马达液压连接到液压泵的油路的中心部分,所述中心部分具有安装有所述液压马达的马达安装表面; 以及一对包含各个液压马达并支撑各个马达轴的左右轴壳体(2L和2R)。 支撑各左右行车轮(1L,1R)的一对车轮支撑单元(30L,30R)与左右车轴箱的各自的外端接合,驱动地连接于各自的电动机 轴(23b)。