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公开(公告)号：US20170307075A1
公开(公告)日：2017-10-26
申请号：US15650358
申请日：2017-07-14
发明人： Jun MATSUURA , Koji Iwaki , Tomoyuki Tsuji , Minoru Kamada , Hideki Kanenobu , Kengo Sasahara
IPC分类号： F16H61/4069 , F16H39/04 , F04B23/04 , F16H61/431 , F04B1/00
CPC分类号： F16H61/4069 , F04B1/00 , F04B23/04 , F16H39/04 , F16H47/02 , F16H61/431
摘要： An HST control mechanism includes a rotary member, a servo unit, a telescopic member, and a biasing device. The rotary member for controlling a displacement of a hydrostatic transmission (HST) is pivoted outside of a casing incorporating the HST. The servo unit includes a telescopically movable actuator and a valve controlling the telescopic movement of the actuator. The actuator is interlockingly connected to the rotary member. The servo unit is pivotally supported on the casing via a first pivot. The servo unit rotates centered on the first pivot as the rotary member rotates according to the telescopic movement of the actuator hydraulically controlled by the valve. The telescopic member is pivotally supported on the casing via a second pivot. The telescopic member is provided with the biasing device that biases the telescopic member and the rotary member toward a position corresponding to a neutral state of the HST.
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公开(公告)号：US09822876B2
公开(公告)日：2017-11-21
申请号：US14478441
申请日：2014-09-05
发明人： Tomoyuki Tsuji , Tooru Oota
摘要： A housing of an axial piston device is provided with a drain port for discharging the retained oil to the outside and a supply oil passage for guiding lubricating oil, which has been supplied from an oil source, toward a first hydraulic axial piston member. The drain port is arranged so as to bring about such a retained-oil level that a second hydraulic axial piston member, which is disposed below the first hydraulic axial piston member, is partially or entirely immersed in the retained oil while the first hydraulic axial piston member is not immersed in the retained oil.
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公开(公告)号：US12000467B2
公开(公告)日：2024-06-04
申请号：US17819136
申请日：2022-08-11
发明人： Koji Iwaki , Tomoyuki Tsuji
IPC分类号： F16H61/423 , F16H39/14 , F16H47/04 , F16H61/4008 , F16H61/425 , F16H61/433 , F16H61/435
CPC分类号： F16H47/04 , F16H39/14 , F16H61/4008 , F16H61/423 , F16H61/425 , F16H61/433 , F16H61/435
摘要： A pump operation piston biased by a neutral spring mechanism and a larger volume operation spring biased by a larger volume operation spring in a larger volume direction operatively move pump and motor volume adjusting members, respectively, is provided. A first pressure control valve commonly controls supply-discharge of pressure oil that presses the pump operation piston in a first slide direction and the motor operation piston in a smaller volume direction. A second pressure control valve controls supply-discharge of pressure oil that presses the pump operation piston in a second slide direction. Biasing forces of the neutral spring mechanism and the larger volume operation spring are so set that, after the pump operation piston is moved in the first slide direction by a predetermined distance, the motor operation piston starts moving.
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公开(公告)号：US11644091B2
公开(公告)日：2023-05-09
申请号：US17709818
申请日：2022-03-31
发明人： Koji Iwaki , Tomoyuki Tsuji , Ryo Motooka
IPC分类号： F16H47/04
CPC分类号： F16H47/04
摘要： A hydromechanical continuously variable speed transmission is provided. The hydromechanical continuously variable speed transmission can include: the HST 10 in which the planetary gear mechanism 11 is housed in the planetary gear support case 71 mounted on a face of the center section 35 to form the HMT unit 100, the face being on the side opposite to the side on which the HST case 23 is mounted, and the HMT unit 100 is further provided with the housing mounting face 35d for fixing the HMT unit 100 to the housing 91 of the traveling power transmission mechanism 89, the housing mounting face 35d being provided on the center section 35 so as to surround the outer circumference of the mounting face 71a on which the planetary gear support case 71 is mounted.
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公开(公告)号：US09488261B2
公开(公告)日：2016-11-08
申请号：US14031962
申请日：2013-09-19
发明人： Yasuhisa Mochizuki , Tomoyuki Tsuji , Tooru Oota
CPC分类号： F16H39/14 , F16H57/0471
摘要： In a hydrostatic transmission (HST), a lubricating fluid passage is formed in an input shaft and has a pair of radially opposite lubricating fluid spill ports open at an outer peripheral surface of the input shaft. Both of the radially opposite lubricating fluid spill ports face a lubricated object of the HST. The lubricating fluid passage includes an axial fluid passage and a pair of radial fluid passages that are extended radially from the axial fluid passage to the outer peripheral surface of the input shaft so as to be radially opposite each other. Open ends of the respective radial fluid passages at the outer peripheral surface of the input shaft serve as the respective radially opposite lubricating fluid spill ports.
摘要翻译： 在静液压传动装置（HST）中，在输入轴上形成润滑流体通道，并且在输入轴的外周面上具有一对径向相对的润滑流体溢出口。 两个径向相对的润滑流体溢出口均面向HST的润滑物体。 润滑流体通道包括轴向流体通道和一对径向流体通道，其从轴向流体通道径向延伸到输入轴的外周表面，以便彼此径向相对。 在输入轴的外周表面处的相应的径向流体通道的开口端部用作相应的径向相对的润滑流体溢出口。
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公开(公告)号：US20160040691A1
公开(公告)日：2016-02-11
申请号：US14817922
申请日：2015-08-04
发明人： Jun Matsuura , Koji Iwaki , Tomoyuki Tsuji , Minoru Kamada , Hideki Kanenobu , Kengo Sasahara
IPC分类号： F15B15/16 , F16H61/4069
CPC分类号： F16H61/4069 , F04B1/00 , F04B23/04 , F16H39/04 , F16H47/02 , F16H61/431
摘要： An HST control mechanism includes a rotary member, a servo unit, a telescopic member, and a biasing device. The rotary member for controlling a displacement of a hydrostatic transmission (HST) is pivoted outside of a casing incorporating the HST. The servo unit includes a telescopically movable actuator and a valve controlling the telescopic movement of the actuator. The actuator is interlockingly connected to the rotary member. The servo unit is pivotally supported on the casing via a first pivot. The servo unit rotates centered on the first pivot as the rotary member rotates according to the telescopic movement of the actuator hydraulically controlled by the valve. The telescopic member is pivotally supported on the casing via a second pivot. The telescopic member is provided with the biasing device that biases the telescopic member and the rotary member toward a position corresponding to a neutral state of the HST.
摘要翻译： HST控制机构包括旋转构件，伺服单元，伸缩构件和偏置装置。 用于控制静液压变速器（HST）的位移的旋转构件在包括HST的套管的外部枢转。 伺服单元包括可伸缩运动的致动器和控制致动器的伸缩运动的阀。 致动器互锁地连接到旋转构件。 伺服单元通过第一枢轴枢转地支撑在壳体上。 随着旋转构件根据由阀液压控制的致动器的伸缩运动而旋转，伺服单元以第一枢轴为中心旋转。 伸缩构件通过第二枢轴枢转地支撑在壳体上。 伸缩构件设置有将伸缩构件和旋转构件朝向对应于HST的中立状态的位置偏压的偏置装置。
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公开(公告)号：US20140096515A1
公开(公告)日：2014-04-10
申请号：US14031962
申请日：2013-09-19
发明人： Yasuhisa Mochizuki , Tomoyuki Tsuji , Tooru Oota
IPC分类号： F16H39/14
CPC分类号： F16H39/14 , F16H57/0471
摘要： In a hydrostatic transmission (HST), a lubricating fluid passage is formed in an input shaft and has a pair of radially opposite lubricating fluid spill ports open at an outer peripheral surface of the input shaft. Both of the radially opposite lubricating fluid spill ports face a lubricated object of the HST. The lubricating fluid passage includes an axial fluid passage and a pair of radial fluid passages that are extended radially from the axial fluid passage to the outer peripheral surface of the input shaft so as to be radially opposite each other. Open ends of the respective radial fluid passages at the outer peripheral surface of the input shaft serve as the respective radially opposite lubricating fluid spill ports.
摘要翻译： 在静液压传动装置（HST）中，在输入轴上形成润滑流体通道，并且在输入轴的外周面上具有一对径向相对的润滑流体溢出口。 两个径向相对的润滑流体溢出口均面向HST的润滑物体。 润滑流体通道包括轴向流体通道和一对径向流体通道，其从轴向流体通道径向延伸到输入轴的外周表面，以便彼此径向相对。 在输入轴的外周表面处的相应的径向流体通道的开口端部用作相应的径向相对的润滑流体溢出口。
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