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    Hydraulic transmission system for zero-turn vehicle
    1.
    发明授权
    Hydraulic transmission system for zero-turn vehicle 有权
    零转车液压传动系统

    公开(公告)号：US08800279B2

    公开(公告)日：2014-08-12

    申请号：US13272917

    申请日：2011-10-13

    申请人： Tsuyoshi Kita ,  Koji Iwaki ,  Shinya Sakakura

    发明人： Tsuyoshi Kita ,  Koji Iwaki ,  Shinya Sakakura

    IPC分类号： F16D31/02

    CPC分类号： F15B7/006 ,  B60Y2200/223 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/613 ,  F15B2211/7058 ,  F16H61/4139

    摘要： A hydraulic transmission system for a zero-turn vehicle, comprises first and second transaxles each of which includes an axle, a casing supporting the axle, a fluid sump provided in the casing, first and second ports provided on the casing and opened outward from the casing, an HST circuit, a charge pump disposed in the casing, and a charge passage disposed in the casing to supply the HST circuit with fluid delivered from the charge pump. A first pipe connects the first ports of the transaxles, thereby making the flow of fluid from the charge pump of the first transaxle to the fluid sump of the second transaxle. A second pipe connects the second ports of the transaxles, whereby overflowing fluid of the fluid sump of the second transaxle is released to the fluid sump of the first transaxle via the second pipe.

    摘要翻译： 一种用于零转弯车辆的液压传动系统，包括第一和第二变速驱动桥，每个驱动桥包括轴，支撑轴的壳体，设置在壳体中的流体槽，设置在壳体上的第一和第二端口， 壳体，HST电路，设置在壳体中的电荷泵，以及设置在壳体中的充电通道，以向HST电路提供从电荷泵输送的流体。 第一管连接驱动桥的第一端口，从而使流体从第一驱动桥的电荷泵流到第二驱动桥的流体槽。 第二管连接变速驱动桥的第二端口，由此第二变速驱动桥的流体槽的溢流流体经由第二管被释放到第一变速驱动桥的流体集油槽。

    Hydraulic transaxle
    2.
    发明授权
    Hydraulic transaxle 有权
    液压传动桥

    公开(公告)号：US08887500B2

    公开(公告)日：2014-11-18

    申请号：US13421172

    申请日：2012-03-15

    申请人： Hideki Kanenobu ,  Masaru Iida ,  Koji Iwaki ,  Shinya Sakakura

    发明人： Hideki Kanenobu ,  Masaru Iida ,  Koji Iwaki ,  Shinya Sakakura

    IPC分类号： F16D31/02

    CPC分类号： F16H61/4139 ,  B60K17/10 ,  F16D31/02

    摘要： A hydraulic transaxle comprises a transaxle housing, an axle, a hydraulic pump, a hydraulic motor, a hydraulic circuit, and a pair of auxiliary pumps. The transaxle housing defines a fluid sump therein. The axle is supported by the transaxle housing. The hydraulic motor is disposed in the transaxle housing so as to drive the axle. The hydraulic pump is disposed in the transaxle housing so as to supply hydraulic fluid to the hydraulic motor. The hydraulic circuit is disposed in the transaxle housing so as to fluidly connect the hydraulic pump to the hydraulic motor. The pair of auxiliary pumps are disposed in the transaxle housing so as to supply fluid from the fluid sump to outside of the transaxle housing.

    摘要翻译： 液压驱动桥包括变速驱动桥壳体，轴，液压泵，液压马达，液压回路和一对辅助泵。 变速驱动桥壳体在其中限定流体槽。 轴由变速驱动桥壳体支撑。 液压马达设置在变速驱动桥壳体中以驱动轴。 液压泵设置在变速驱动桥壳体中，以便向液压马达提供液压流体。 液压回路设置在变速驱动桥壳体中，以将液压泵流体连接到液压马达。 一对辅助泵设置在变速驱动桥壳体中，以便将流体从流体槽提供到变速驱动桥壳体的外部。

    Hydraulic Transaxle
    4.
    发明申请
    Hydraulic Transaxle 有权
    液压传动桥

    公开(公告)号：US20090049833A1

    公开(公告)日：2009-02-26

    申请号：US12204458

    申请日：2008-09-04

    申请人： Shinya SAKAKURA ,  Takeshi Okazaki ,  Koji Iwaki

    发明人： Shinya SAKAKURA ,  Takeshi Okazaki ,  Koji Iwaki

    IPC分类号： F16H39/00

    CPC分类号： B60K17/043 ,  B60K17/105 ,  B60K17/356 ,  B60Y2200/221 ,  B60Y2200/223 ,  B62D7/18 ,  B62D9/002 ,  B62D11/001 ,  F16H39/12 ,  F16H39/14

    摘要： A hydraulic transaxle has an axle casing and a pair of hydraulic motors disposed in the axle casing. The hydraulic motors have respective motor shafts and respective moveable swash plates. An axis of tilt of each moveable swash plate is offset with respect to a longitudinal axis of the respective motor shaft, and the moveable swash plates are operatively engaged to a steering operation device.

    摘要翻译： 液压驱动桥具有轴套和设置在轴箱中的一对液压马达。 液压马达具有各自的马达轴和相应的可移动斜盘。 每个可移动斜盘的倾斜轴相对于相应马达轴的纵向轴线偏移，并且可移动的斜盘可操作地接合到转向操作装置。

    Hydraulic Transaxle
    5.
    发明申请
    Hydraulic Transaxle 有权
    液压传动桥

    公开(公告)号：US20130239561A1

    公开(公告)日：2013-09-19

    申请号：US13421172

    申请日：2012-03-15

    申请人： Hideki KANENOBU ,  Masaru Iida ,  Koji Iwaki ,  Shinya Sakakura

    发明人： Hideki KANENOBU ,  Masaru Iida ,  Koji Iwaki ,  Shinya Sakakura

    IPC分类号： B60K17/356 ,  F16D31/00

    CPC分类号： F16H61/4139 ,  B60K17/10 ,  F16D31/02

    摘要： A hydraulic transaxle comprises a transaxle housing, an axle, a hydraulic pump, a hydraulic motor, a hydraulic circuit, and a pair of auxiliary pumps. The transaxle housing defines a fluid sump therein. The axle is supported by the transaxle housing. The hydraulic motor is disposed in the transaxle housing so as to drive the axle. The hydraulic pump is disposed in the transaxle housing so as to supply hydraulic fluid to the hydraulic motor. The hydraulic circuit is disposed in the transaxle housing so as to fluidly connect the hydraulic pump to the hydraulic motor. The pair of auxiliary pumps are disposed in the transaxle housing so as to supply fluid from the fluid sump to outside of the transaxle housing.

    摘要翻译： 液压驱动桥包括变速驱动桥壳体，轴，液压泵，液压马达，液压回路和一对辅助泵。 变速驱动桥壳体在其中限定流体槽。 轴由变速驱动桥壳体支撑。 液压马达设置在变速驱动桥壳体中以驱动轴。 液压泵设置在变速驱动桥壳体中，以便向液压马达提供液压流体。 液压回路设置在变速驱动桥壳体中，以将液压泵流体连接到液压马达。 一对辅助泵设置在变速驱动桥壳体中，以便将流体从流体槽提供到变速驱动桥壳体的外部。

    HYDRAULIC TRANSMISSION SYSTEM FOR ZERO-TURN VEHICLE
    6.
    发明申请
    HYDRAULIC TRANSMISSION SYSTEM FOR ZERO-TURN VEHICLE 有权
    液压传动系统零转向车辆

    公开(公告)号：US20130091837A1

    公开(公告)日：2013-04-18

    申请号：US13272917

    申请日：2011-10-13

    申请人： Tsuyoshi KITA ,  Koji Iwaki

    发明人： Tsuyoshi KITA ,  Koji Iwaki

    IPC分类号： F15B13/00

    CPC分类号： F15B7/006 ,  B60Y2200/223 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/613 ,  F15B2211/7058 ,  F16H61/4139

    摘要： A hydraulic transmission system for a zero-turn vehicle, comprises first and second transaxles each of which includes an axle, a casing supporting the axle, a fluid sump provided in the casing, first and second ports provided on the casing and opened outward from the casing, an HST circuit, a charge pump disposed in the casing, and a charge passage disposed in the casing to supply the HST circuit with fluid delivered from the charge pump. A first pipe connects the first ports of the transaxles, thereby making the flow of fluid from the charge pump of the first transaxle to the fluid sump of the second transaxle. A second pipe connects the second ports of the transaxles, whereby overflowing fluid of the fluid sump of the second transaxle is released to the fluid sump of the first transaxle via the second pipe.

    摘要翻译： 一种用于零转弯车辆的液压传动系统，包括第一和第二变速驱动桥，每个驱动桥包括轴，支撑轴的壳体，设置在壳体中的流体槽，设置在壳体上的第一和第二端口， 壳体，HST电路，设置在壳体中的电荷泵，以及设置在壳体中的充电通道，以向HST电路提供从电荷泵输送的流体。 第一管连接驱动桥的第一端口，从而使流体从第一驱动桥的电荷泵流到第二驱动桥的流体槽。 第二管连接变速驱动桥的第二端口，由此第二变速驱动桥的流体槽的溢流流体经由第二管被释放到第一变速驱动桥的流体集油槽。

    Electric vehicle
    7.
    发明授权
    Electric vehicle 有权
    电动车

    公开(公告)号：US08381853B2

    公开(公告)日：2013-02-26

    申请号：US12971687

    申请日：2010-12-17

    申请人： Koji Iwaki ,  Kazunari Koga ,  Kengo Sasahara

    发明人： Koji Iwaki ,  Kazunari Koga ,  Kengo Sasahara

    IPC分类号： B60W10/04

    CPC分类号： B60L3/0076 ,  B60K2001/001 ,  B60L7/003 ,  B60L7/24 ,  B60L11/1803 ,  B60L2200/40 ,  B60L2240/423 ,  B60L2250/24 ,  B60L2250/26 ,  B60L2260/28 ,  B60T13/746 ,  B60T2201/04 ,  B60W30/18127 ,  B60Y2200/223 ,  Y02T10/642 ,  Y02T10/7005

    摘要： An electric vehicle comprising a drive wheel which is driven by a traction electric motor, a brake command device, a brake releasing unit, a brake shaft, a friction plate, and a braking spring. The brake shaft is rotatable in a brake realizing direction which is one direction by an operation of the brake command device, and is rotatable in a brake releasing direction which is the other direction by driving of the brake releasing unit. The friction plate is operatively connected to the traction electric motor, and is frictionally braked when the brake shaft is rotated in the brake realizing direction. The braking spring applies an elastic force to the brake shaft in a direction to rotate the brake shaft in the brake realizing direction.

    摘要翻译： 一种电动车辆，包括由牵引电动机驱动的驱动轮，制动指令装置，制动解除单元，制动轴，摩擦板和制动弹簧。 制动轴可以通过制动指令装置的操作在作为一个方向的制动实现方向上旋转，并且可以通过制动释放单元的驱动在作为另一方向的制动释放方向上旋转。 摩擦片可操作地连接到牵引电动机，并且当制动轴在制动器实现方向上旋转时被摩擦制动。 制动弹簧沿制动器实现方向使制动轴旋转的方向向制动轴施加弹力。

    Hydraulic transaxle
    8.
    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

    申请人： Koji Iwaki ,  Norihiro Ishii ,  Shigenori Sakikawa ,  Katsumoto Mizukawa ,  Manabu Kawakami ,  Kentaro Nagata

    发明人： Koji Iwaki ,  Norihiro Ishii ,  Shigenori Sakikawa ,  Katsumoto Mizukawa ,  Manabu Kawakami ,  Kentaro Nagata

    IPC分类号： B60K17/14

    CPC分类号： B62D11/001 ,  B60K17/043 ,  B60K17/105 ,  B60K17/356 ,  B60Y2200/221 ,  B60Y2200/223 ,  B62D7/18 ,  B62D9/002 ,  F16H39/14

    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） 。

    Hydrostatic transaxle
    9.
    发明授权
    Hydrostatic transaxle 有权
    静水驱动桥

    公开(公告)号：US07900735B2

    公开(公告)日：2011-03-08

    申请号：US12714710

    申请日：2010-03-01

    申请人： Koji Iwaki ,  Norihiro Ishii ,  Fumitoshi Ishino

    发明人： Koji Iwaki ,  Norihiro Ishii ,  Fumitoshi Ishino

    IPC分类号： B60K17/30

    CPC分类号： B62D7/18 ,  B60K17/043 ,  B60K17/30 ,  B60Y2200/223 ,  B62D3/02 ,  B62D9/002 ,  B62D11/001 ,  B62D11/06 ,  F16H39/14

    摘要： A hydrostatic transaxle comprises: a motor casing; at least one hydraulic motor disposed in the motor casing; at least one output shaft disposed in the motor casing so as to be driven by the at least one hydraulic motor; and a pair of steerable wheel support units attached onto respective opposite ends of the motor casing. Each of the steerable wheel support units includes an axle, a steerable casing, a wheel, and a steering arm. In each of the steerable wheel support units, the axle is drivingly connected to the at least one output shaft, the steerable casing is substantially horizontally rotatable relative to the motor casing, the wheel is attached on an outer end of the axle outside of the steerable casing, and the steering arm is rotatably integrally provided on the steerable casing. The hydrostatic transaxle further comprises a pair of connection rods for connecting the steering arms of the steerable wheel support units to a common rotary member of a steering operation mechanism spaced forward or rearward from the hydrostatic transaxle.

    摘要翻译： 静压驱动桥包括：电动机壳体; 设置在所述电动机壳体中的至少一个液压马达; 至少一个输出轴，设置在所述马达壳体中，以被所述至少一个液压马达驱动; 以及一对可转动的轮支撑单元，其附接到马达壳体的相应的相对端。 每个可转向轮支撑单元包括一个轴，可转向的壳体，轮子和转向臂。 在每个可转向的车轮支撑单元中，轴被驱动地连接到至少一个输出轴，可转向的壳体相对于电动机壳体基本水平地可旋转，车轮附接在轴的外端， 壳体，并且转向臂可旋转地一体地设置在可转向的壳体上。 静液压驱动桥进一步包括一对连接杆，用于将可转向轮支撑单元的转向臂连接到从静压驱动桥向前或向后间隔的转向操作机构的公共旋转构件。