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公开(公告)号：US08205708B2
公开(公告)日：2012-06-26
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： B60K17/10
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。
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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。
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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。
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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。
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公开(公告)号：US20070163253A1
公开(公告)日：2007-07-19
申请号：US11623678
申请日：2007-01-16
IPC分类号： F16D39/00
CPC分类号： B60K17/10 , B60K17/356 , F16H61/44 , F16H61/452 , Y10T74/2186
摘要： A hydrostatic transaxle is provided for a vehicle having a first axle and a second axle. The hydrostatic transaxle comprises: a hydraulic pump; a first hydraulic motor drivingly connected to the first axle; a closed circuit fluidly connecting the hydraulic pump to the first hydraulic motor; and a fluid-supply switching device shifted between a supply position for supplying fluid from the closed fluid circuit to a second hydraulic motor, which is disposed on the outside of the hydraulic transaxle and is drivingly connected to the second axle, and a supply-stop position for stopping the supply of fluid from the closed fluid circuit to the second hydraulic motor. The first hydraulic motor is variable in displacement, and the hydrostatic transaxle further comprises a linkage system for associating the switching of the fluid-supply switching device between the supply position and the supply-stop position with operation for changing the displacement of the first hydraulic motor.
摘要翻译： 为具有第一轴和第二轴的车辆提供静液压驱动桥。 液压驱动桥包括：液压泵; 驱动地连接到第一轴的第一液压马达; 将液压泵流体连接到第一液压马达的闭路回路; 以及液体供给切换装置，其在从所述封闭流体回路供给流体的供给位置与设置在所述液压驱动桥的外侧并驱动连接到所述第二轴的第二液压马达之间移动，并且供给停止 用于停止从封闭的流体回路向第二液压马达供应流体的位置。 所述第一液压马达的位移变化可变，所述液压静力驱动桥进一步包括用于使所述供给切换装置在所述供给位置与所述供给停止位置之间的切换与所述第一液压马达 。
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公开(公告)号：US07503172B2
公开(公告)日：2009-03-17
申请号：US11623678
申请日：2007-01-16
CPC分类号： B60K17/10 , B60K17/356 , F16H61/44 , F16H61/452 , Y10T74/2186
摘要： A hydrostatic transaxle is provided for a vehicle having a first axle and a second axle. The hydrostatic transaxle comprises: a hydraulic pump; a first hydraulic motor drivingly connected to the first axle; a closed circuit fluidly connecting the hydraulic pump to the first hydraulic motor; and a fluid-supply switching device shifted between a supply position for supplying fluid from the closed fluid circuit to a second hydraulic motor, which is disposed on the outside of the hydraulic transaxle and is drivingly connected to the second axle, and a supply-stop position for stopping the supply of fluid from the closed fluid circuit to the second hydraulic motor. The first hydraulic motor is variable in displacement, and the hydrostatic transaxle further comprises a linkage system for associating the switching of the fluid-supply switching device between the supply position and the supply-stop position with an operation for changing the displacement of the first hydraulic motor.
摘要翻译： 为具有第一轴和第二轴的车辆提供静液压驱动桥。 液压驱动桥包括：液压泵; 驱动地连接到第一轴的第一液压马达; 将液压泵流体连接到第一液压马达的闭路回路; 以及液体供给切换装置，其在从所述封闭流体回路供给流体的供给位置与设置在所述液压驱动桥的外侧并驱动连接到所述第二轴的第二液压马达之间移动，并且供给停止 用于停止从封闭的流体回路向第二液压马达供应流体的位置。 第一液压马达的位移变化可变，而静液压驱动桥进一步包括连杆系统，用于将供液位置与供给停止位置之间的流体供应切换装置的切换与用于改变第一液压的位移的操作 发动机。
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公开(公告)号：US07849689B2
公开(公告)日：2010-12-14
申请号：US12402823
申请日：2009-03-12
CPC分类号： B60K17/10 , B60K17/356 , F16H61/44 , F16H61/452 , Y10T74/2186
摘要： A hydrostatic transaxle is provided for a vehicle having a first axle and a second axle. The hydrostatic transaxle comprises: a hydraulic pump; a first hydraulic motor drivingly connected to the first axle; a closed circuit fluidly connecting the hydraulic pump to the first hydraulic motor; and a fluid-supply switching device shifted between a supply position for supplying fluid from the closed fluid circuit to a second hydraulic motor, which is disposed on the outside of the hydraulic transaxle and is drivingly connected to the second axle, and a supply-stop position for stopping the supply of fluid from the closed fluid circuit to the second hydraulic motor. The first hydraulic motor is variable in displacement, and the hydrostatic transaxle further comprises a linkage system for associating the switching of the fluid-supply switching device between the supply position and the supply-stop position with an operation for changing the displacement of the first hydraulic motor.
摘要翻译： 为具有第一轴和第二轴的车辆提供静液压驱动桥。 液压驱动桥包括：液压泵; 驱动地连接到第一轴的第一液压马达; 将液压泵流体连接到第一液压马达的闭路回路; 以及液体供给切换装置，其在从所述封闭流体回路供给流体的供给位置与设置在所述液压驱动桥的外侧并驱动连接到所述第二轴的第二液压马达之间移动，并且供给停止 用于停止从封闭的流体回路向第二液压马达供应流体的位置。 第一液压马达的位移变化可变，而静液压驱动桥进一步包括连杆系统，用于将供液位置与供给停止位置之间的流体供应切换装置的切换与用于改变第一液压的位移的操作 发动机。
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公开(公告)号：US20070072728A1
公开(公告)日：2007-03-29
申请号：US11605409
申请日：2006-11-29
IPC分类号： F16H37/08
CPC分类号： F16H61/448 , B60K17/105 , B60K17/28 , B60Y2200/223 , B60Y2200/41 , F16H47/02 , F16H61/40 , F16H61/4026 , F16H61/4139 , F16H61/42 , F16H61/437 , Y10T74/19084 , Y10T74/19116 , Y10T74/19219
摘要： A hydrostatic transmission for vehicle interposed in a drive-power transmission path between a driving power source and a driving axle for non-stepwisely changing the speed of the vehicle includes an HST housing; a hydraulic pump unit having a pump shaft with first and second ends extending in a fore-aft direction of the vehicle away from each other; a hydraulic motor unit having a motor shaft for outputting the drive power from the motor shaft whose speed is non-stepwisely varied in cooperation with the hydraulic pump unit; a PTO unit having a PTO shaft extending in the fore-aft direction of the vehicle, the PTO shaft being operatively connected to the pump shaft; a charge pump unit for replenishing pressurized hydraulic fluid to a hydraulic circuit, the hydraulic circuit hydraulically connecting the hydraulic pump unit with the hydraulic motor unit, the charge pump unit including a charge pump body, and a charge pump case connected to the HST housing through its wall closer to the driving axle for supporting the charge pump body; the PTO shaft having an one end closer to the driving axle, the one end extending outwardly through the HST housing to have an outer extension positioned outside of the HST housing; and the charge pump case being designed so as to bearing-support the outer extension of the PTO shaft.
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公开(公告)号：US20080041048A1
公开(公告)日：2008-02-21
申请号：US11842754
申请日：2007-08-21
申请人： Hideki Kanenobu , Shinya Sakakura
发明人： Hideki Kanenobu , Shinya Sakakura
CPC分类号： B60K17/356 , B60K17/105 , B60Y2200/223 , F16H61/4043 , F16H61/452
摘要： A hydrostatic transmission apparatus has a housing, a hydraulic pump disposed in the housing so as to be driven by a prime mover and a first hydraulic motor disposed in the housing. A first port is provided on the housing and opens outward from the housing. A first fluid passage is disposed in the housing and interposed between the hydraulic pump and the first hydraulic motor. A second port is provided on the housing and opens outward from the housing. A second fluid passage is disposed in the housing and extended from the hydraulic pump to the first port, wherein the first and second ports are adapted to be fluidly connected to a second hydraulic motor disposed outside of the housing so as to constitute a closed fluid circuit fluidly connecting the first and second hydraulic motors in series to the hydraulic pump. A third fluid passage is disposed in the housing and extends from the first hydraulic motor to the second port. The hydrostatic transmission apparatus also has a first bypass means for allowing fluid to bypass the hydraulic pump between the first and second fluid passages and a second bypass means for allowing fluid to bypass the first hydraulic motor between the first and third fluid passages.
摘要翻译： 液压传动装置具有壳体，设置在壳体中以由原动机驱动的液压泵和设置在壳体中的第一液压马达。 第一端口设置在壳体上并从壳体向外打开。 第一流体通道设置在壳体中并且介于液压泵和第一液压马达之间。 第二端口设置在壳体上并从壳体向外打开。 第二流体通道设置在壳体中并从液压泵延伸到第一端口，其中第一和第二端口适于流体连接到布置在壳体外部的第二液压马达，以便构成封闭的流体回路 将第一和第二液压马达与液压泵串联连接。 第三流体通道设置在壳体中并且从第一液压马达延伸到第二端口。 静液压传动装置还具有第一旁通装置，用于允许流体绕过第一和第二流体通道之间的液压泵，以及第二旁路装置，用于允许流体在第一和第三流体通道之间绕过第一液压马达。
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公开(公告)号：US07275372B2
公开(公告)日：2007-10-02
申请号：US11605409
申请日：2006-11-29
IPC分类号： B60K17/344 , F16H47/00
CPC分类号： F16H61/448 , B60K17/105 , B60K17/28 , B60Y2200/223 , B60Y2200/41 , F16H47/02 , F16H61/40 , F16H61/4026 , F16H61/4139 , F16H61/42 , F16H61/437 , Y10T74/19084 , Y10T74/19116 , Y10T74/19219
摘要： A hydrostatic transmission for vehicle interposed in a drive-power transmission path between a driving power source and a driving axle for non-stepwisely changing the speed of the vehicle includes an HST housing; a hydraulic pump unit having a pump shaft with first and second ends extending in a fore-aft direction of the vehicle away from each other; a hydraulic motor unit having a motor shaft for outputting the drive power from the motor shaft whose speed is non-stepwisely varied in cooperation with the hydraulic pump unit; a PTO unit having a PTO shaft extending in the fore-aft direction of the vehicle, the PTO shaft being operatively connected to the pump shaft; a charge pump unit for replenishing pressurized hydraulic fluid to a hydraulic circuit, the hydraulic circuit hydraulically connecting the hydraulic pump unit with the hydraulic motor unit, the charge pump unit including a charge pump body, and a charge pump case connected to the HST housing through its wall closer to the driving axle for supporting the charge pump body; the PTO shaft having an one end closer to the driving axle, the one end extending outwardly through the HST housing to have an outer extension positioned outside of the HST housing; and the charge pump case being designed so as to bearing-support the outer extension of the PTO shaft.
摘要翻译： 插入在驱动动力源和驱动轴之间的驱动力传递路径中用于非逐步改变车辆速度的车辆的静液压变速器包括：HST壳体; 具有泵轴的液压泵单元，所述泵轴具有沿车辆的前后方向彼此远离地延伸的第一和第二端; 液压马达单元，其具有用于从与所述液压泵单元协作的速度不是逐步变化的马达轴输出驱动力的马达轴; PTO单元，其具有沿车辆前后方向延伸的PTO轴，PTO轴可操作地连接到泵轴; 用于将加压液压流体补充到液压回路的电荷泵单元，液压回路将液压泵单元液压连接到液压马达单元，电荷泵单元包括电荷泵体，以及电荷泵壳体，其连接到HST壳体，通过 其壁更靠近用于支撑电荷泵体的驱动轴; 所述PTO轴具有更靠近所述驱动轴的一端，所述一端通过所述HST壳体向外延伸以具有定位在所述HST壳体外部的外延伸部; 并且电荷泵壳被设计成轴承支撑PTO轴的外部延伸部。
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