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91. 发明授权

US5311740A Hydraulic power transmission 失效
标题翻译：液压动力传动
公开(公告)号：US5311740A
公开(公告)日：1994-05-17
申请号：US849731
申请日：1992-03-11
申请人： Kenji Shiba , Ryota Ohashi , Kenichi Takada
发明人： Kenji Shiba , Ryota Ohashi , Kenichi Takada
IPC分类号： B60K17/10 , B60K17/14 , B60K25/00 , F16H39/08 , F16D31/02
CPC分类号： B60K17/14 , B60K17/105 , B60K25/00 , F16H39/08 , B60Y2200/223 , Y10T74/18336
摘要： A hydraulic power transmission including a compact external oil pressure takeoff apparatus which houses therein a hydrostatic transmission, and attaches thereto a charge pump. The transmission is capable of supplying operating oil and of taking out external oil pressure. Specifically, part of the discharge oil from the charge pump is adapted to be taken out from the housing so as to omit the need for an external takeout pump. An oil filter is disposed on the exterior of the housing, thereby facilitating maintenance of the hydraulic power transmission.
摘要翻译：一种液压动力传动装置，其包括紧凑的外部油压抽出装置，其中容纳有静液压传动装置，并附接到电动泵。变速器能够提供工作油和取出外部油压。具体地，来自电荷泵的排出油的一部分适于从壳体中取出，以省略对外部取出泵的需要。油过滤器设置在壳体的外部，从而便于液压动力传动的维护。

92. 发明授权

US4856277A Two-stage flow divider with constant orifice first stage in hydraulic system for working vehicles 失效
标题翻译：用于工作车辆的液压系统中具有恒定孔口第一级的两级分流器
公开(公告)号：US4856277A
公开(公告)日：1989-08-15
申请号：US214311
申请日：1988-07-01
申请人： Ryota Ohashi , Masahisa Kawamura , Jiro Shibata
发明人： Ryota Ohashi , Masahisa Kawamura , Jiro Shibata
IPC分类号： B62D5/07 , F15B13/02
CPC分类号： F15B13/022 , B62D5/07
摘要： A hydraulic flow divider has first and second (147, 148) flow control valves each dividing its inflow into two flows. The constant orifice first flow control valve (147) divides flow to outlets (151) and (153). Flow from outlet (151) is then divided by the second valve (148). One of the output flows of the second valve is generated by a constant orifice and directed to a power steering cylinder. Any secondary output from the second valve is generated by a pressure relief valve (152), joins flow from outlet (153), and passes to a hydraulic lift cylinder. The arrangement secures a significant flow rate for lift cylinder operation at low pump drive engine speeds at which pump output flow is low.
摘要翻译：液压分流器具有第一和第二（147,148）流量控制阀，每个流入控制阀将其流入分成两个流。恒定孔口第一流量控制阀（147）将流量分流到出口（151）和（153）。然后，从出口（151）流出的第二阀（148）分开。第二阀的输出流中的一个由恒定孔产生，并被引导到动力转向缸。来自第二阀的任何二次输出由压力释放阀（152）产生，从出口（153）流出，并传递到液压提升缸。该配置确保在泵输出流量低的低泵驱动发动机速度下提升气缸操作的显着流量。

93. 发明授权

US4773216A Flow divider valve for hydraulic system in working vehicles 失效
标题翻译：工作车辆液压系统的分流阀
公开(公告)号：US4773216A
公开(公告)日：1988-09-27
申请号：US818285
申请日：1986-01-13
申请人： Ryota Ohashi , Masahisa Kawamura , Jiro Shibata
发明人： Ryota Ohashi , Masahisa Kawamura , Jiro Shibata
IPC分类号： B62D5/07 , F15B13/02 , B62D5/08 , F15B13/06
CPC分类号： F15B13/022 , B62D5/07
摘要： In a working vehicle comprising a hydraulic power steering cylinder (25) and hydraulic lift cylinder (31), a novel hydraulic system is employed which comprises first and second flow control valve means (47, 48; 147, 148; 247, 248; 347, 348), each dividing its inflow into two flows. These valve means are connected in a fashion such that output flow of a single pump (43) driven by engine (10) is first divided into two output flows one of which is then divided by the second valve means. Further, one of the output flows of the second valve means is directed towards the steering cylinder whereas the other of output flows of the both valve means are directed towards the lift cylinder.The connection is such that, while a predetermined constant flow is secured for the steering cylinder at the normal engine speeds, a flow is necessarily secured for a relatively quick operation of the lift cylinder already at a low engine speed.
摘要翻译：在包括液压动力转向缸（25）和液压提升缸（31）的作业车辆中，采用了一种新颖的液压系统，其包括第一和第二流量控制阀装置（47,48; 147,148; 247,248; 347 ，348），每个流入分为两个流。这些阀装置以这样的方式连接，使得由发动机（10）驱动的单个泵（43）的输出流首先被分成两个输出流，其中之一由第二阀装置分开。此外，第二阀装置的输出流中的一个指向转向缸，而两个阀装置的输出流中的另一个指向提升缸。该连接使得当在正常的发动机转速下为转向缸确保预定的恒定流量时，必须确保已经处于低发动机速度的提升缸的相对快速的操作的流动。

94. 发明授权

US4637482A Hydraulic system in working vehicles 失效
标题翻译：工作车辆液压系统
公开(公告)号：US4637482A
公开(公告)日：1987-01-20
申请号：US827952
申请日：1986-02-10
申请人： Ryota Ohashi , Masahisa Kawamura , Jiro Shibata
发明人： Ryota Ohashi , Masahisa Kawamura , Jiro Shibata
IPC分类号： B62D5/07 , B66C23/00 , E02F9/22 , F15B11/16 , F15B13/06 , B62D5/08
CPC分类号： E02F9/2221 , B62D5/07 , Y10T137/8663
摘要： In a working vehicle comprising a hydraulic power steering cylinder (25) and hydraulic lift cylinder (31), a novel hydraulic system is employed which comprises a flow control valve means (47) having an orifice (51) and relief valve (52) and arranged such that it divides output flow of a single pump (43) driven by engine (10) into a constant flow directed towards steering cylinder and a surplus flow directed towards lift cylinder. Piston (54) is particularly provided which varies, in cooperation with an orifice (55) between the pump and control valve means, the biasing force of valve spring (53) of the relief valve so as to vary the flow directed towards steering cylinder within a predetermined range in response to engine speed. The system is fashioned such that it secures a flow for a relatively quick operation of lift cylinder at a low engine speed while securing a predetermined constant flow for steering cylinder at the normal engine speeds.
摘要翻译：在包括液压动力转向缸（25）和液压提升缸（31）的工作车辆中，采用了一种新颖的液压系统，其包括具有孔口（51）和安全阀（52）的流量控制阀装置（47）被布置为使得其将由发动机（10）驱动的单个泵（43）的输出流分成指向转向缸的恒定流量和朝向提升缸的多余流量。特别提供了一种活塞（54），其与泵和控制阀装置之间的孔口（55）协同地改变安全阀的阀弹簧（53）的偏置力，以改变朝向转向缸内的流动响应于发动机速度的预定范围。该系统的形式使得其在低发动机速度下确保提升缸的相对快速操作的流动，同时以正常的发动机速度确保转向缸的预定恒定流量。

95. 发明授权

US08056670B2 Pump unit and working vehicle 失效
标题翻译：泵单元和作业车
公开(公告)号：US08056670B2
公开(公告)日：2011-11-15
申请号：US12543056
申请日：2009-08-18
申请人： Ryota Ohashi , Hironori Sumomozawa
发明人： Ryota Ohashi , Hironori Sumomozawa
IPC分类号： B60K17/10
CPC分类号： A01D34/6806 , B60K17/10 , B60K17/105 , B60K17/28 , B60K25/00 , B60K25/02 , B60K25/06 , B60Y2200/223 , F04B1/22 , F15B11/17 , F15B2211/20546 , F15B2211/20561 , F15B2211/20576 , F15B2211/214 , F15B2211/27 , F15B2211/40507 , F15B2211/40515 , F15B2211/40584 , F15B2211/41536 , F15B2211/423 , F15B2211/473 , F15B2211/7058 , F15B2211/7142
摘要： A pump unit applied to a working vehicle includes an input shaft operatively connected to an output shaft of a driving source, first and second hydraulic pump bodies, a pump housing that accommodates the first and second hydraulic pump bodies having respective rotational axis lines parallel to the input shaft, a PTO shaft, and a mounting housing that couples the pump housing with the driving source in a state that the pump housing is free from the vehicle frame. The input shaft is supported by the pump and is parallel to the output shaft of the driving source, and extends outwardly from a surface of the pump housing that faces the driving source and is inserted into the mounting housing. The PTO shaft is supported by the pump housing and is parallel to the input shaft and extends outwardly from a surface of the pump housing that is opposite to the surface that faces the driving source.
摘要翻译：应用于作业车辆的泵单元包括可操作地连接到驱动源的输出轴的输入轴，第一和第二液压泵体，容纳第一和第二液压泵体的泵壳体，该泵壳体具有与输入轴，PTO轴和安装壳体，其在泵壳体离开车架的状态下将泵壳体与驱动源连接。输入轴由泵支撑并且平行于驱动源的输出轴，并且从泵壳体的面向驱动源的表面向外延伸并插入到安装壳体中。 PTO轴由泵壳体支撑并且平行于输入轴并且从与泵壳体的面向驱动源的表面相对的表面向外延伸。

96. 发明授权

US07788919B2 Pump unit 有权
标题翻译：泵单元
公开(公告)号：US07788919B2
公开(公告)日：2010-09-07
申请号：US12181600
申请日：2008-07-29
申请人： Ryota Ohashi , Hironori Sumomozawa
发明人： Ryota Ohashi , Hironori Sumomozawa
IPC分类号： F16H39/00 , B60K17/00
CPC分类号： F16H57/0434 , F04B1/2064 , F04B1/22 , F04B1/324 , F04B23/06 , F04B23/106 , F04B23/12 , F04B49/002 , F04B49/24 , F04B2205/173 , F16D31/02 , F16H57/04 , F16H61/4043 , F16H61/4139
摘要： The present invention provides a pump unit including at least one hydraulic pump with inlet and outlet ports, a pump case for accommodating the hydraulic pump having an opening through which the hydraulic pump is insertable, and a lid, called a center section, closing the pump case. The center section forms a pair of inlet/outlet passages communicating an end with the inlet and outlet ports of the hydraulic pump and an end opening through a pump case abutting surface of the center section, and a first charging passage by which hydraulic fluid is fed through the pump case abutting surface of the center section. At least one of the pump case and the center section communicates the first charging passage with the pair of inlet/outlet passages via a first hydraulic fluid feeding valve preventing the reverse flow into said first charging passage.
摘要翻译：本发明提供了一种泵单元，其包括具有入口和出口的至少一个液压泵，用于容纳液压泵的泵壳体，该液压泵具有可插入液压泵的开口，以及称为中心部分的盖子，案件。中心部分形成一对入口/出口通道，其一端与液压泵的入口和出口连通，以及通过中心部分的泵壳抵接表面的端部开口，以及第一充气通道，液压流体被供给通过泵壳抵靠中心部分的表面。泵壳和中心部分中的至少一个通过第一液压流体供给阀将第一充电通道与一对入口/出口通道连通，防止反向流入所述第一充电通道。

97. 发明授权

US07673712B2 Power transmission system for working vehicle 有权
标题翻译：工作车辆动力传动系统
公开(公告)号：US07673712B2
公开(公告)日：2010-03-09
申请号：US11519853
申请日：2006-09-13
申请人： Masaru Iida , Hideki Kanenobu , Ryota Ohashi
发明人： Masaru Iida , Hideki Kanenobu , Ryota Ohashi
IPC分类号： B60K17/28 , B62D11/02 , F16H37/00
CPC分类号： A01D69/08 , F16D25/0638 , F16D48/02 , F16D2048/0242 , F16D2048/0263 , F16D2048/0266 , F16D2048/0281 , F16D2500/10437 , F16D2500/1112 , F16H57/04
摘要： A power transmission system for a working vehicle comprises: a vehicle frame; a prime mover mounted on the vehicle frame; a pair of left and right drive wheels; a pair of left and right transaxles juxtaposed on the vehicle frame, wherein each of the left and right transaxles includes a single axle for individually driving each of the left and right drive wheels in forward and rearward directions; a working device; and a working power clutch unit disposed between the left and right transaxles so as to clutch on/off power transmitted from the prime mover to the working device. The working power clutch unit includes: a driving side rotary mechanism for receiving power from the prime mover; the driving side rotary mechanism having one or more first rotors interlocking with each other; a driven side rotary mechanism for outputting power to the working device, the driven side rotary mechanism having one or more second rotors interlocking with each other; and a hydraulic clutch drivingly interposed between the driving side rotary mechanism and the driven side rotary mechanism, and incorporated in the working power clutch unit.
摘要翻译：一种用于工作车辆的动力传动系统包括：车架; 安装在车架上的原动机; 一对左右驱动轮; 一对左右驱动桥并置在车架上，其中左右驱动桥中的每一个包括用于在前后方向上分别驱动左驱动轮和右驱动轮的单个轴; 工作装置以及设置在左右驱动桥之间的作业动力离合器单元，以将从原动机传递到作业装置的离合器的离合器。工作动力离合器单元包括：用于从原动机接收动力的驱动侧旋转机构; 所述驱动侧旋转机构具有彼此互锁的一个或多个第一转子; 用于向工作装置输出动力的从动侧旋转机构，具有彼此互锁的一个或多个第二转子的从动侧旋转机构; 驱动地设置在驱动侧旋转机构和从动侧旋转机构之间的液压离合器，并且配合在作业动力离合器单元中。

98. 发明授权

US07621125B2 Axle driving system 失效
公开(公告)号：US07621125B2
公开(公告)日：2009-11-24
申请号：US12029988
申请日：2008-02-12
申请人： Robert Abend , Hideaki Okada , Ryota Ohashi
发明人： Robert Abend , Hideaki Okada , Ryota Ohashi
IPC分类号： F16D39/00
CPC分类号： F16H39/14 , B60B35/007 , B60B35/163 , B60B2310/305 , B60B2900/112 , B60B2900/321 , B60K17/105 , F16H39/08 , F16H47/02 , Y10T74/2186
摘要： An axle driving system which houses in a housing thereof a hydrostatic transmission, axles, and a driving gear train for connecting output means of the hydraulic transmission and axles, so as to transmit power from a driving source to the hydrostatic transmission and to change the speed, thereby driving the axles. A first chamber therein contains the hydrostatic transmission and a second chamber therein contains the driving gear train. Both the first and second chambers are independent of each other so as to prevent a foreign object, such as iron powder produced in the driving gear train, from entering the hydrostatic transmission. The system includes an L-like-shaped center section on which the hydrostatic transmission is offset such that an imaginary plane which includes a motor mounting surface passes in proximity to the axis of a pump shaft. The pump shaft is disposed perpendicular to the axles. The motor shaft is disposed in parallel thereto. A hydraulic pump is positioned between the hydraulic motor and the axles, so that the housing for the hydrostatic transmission, axles and driving gear train, is smaller in width to thereby make the system more compact.

99. 发明授权

US07409829B2 Pump unit 有权
公开(公告)号：US07409829B2
公开(公告)日：2008-08-12
申请号：US11530547
申请日：2006-09-11
申请人： Ryota Ohashi , Hironori Sumomozawa
发明人： Ryota Ohashi , Hironori Sumomozawa
IPC分类号： F04B49/00 , F04B23/00
CPC分类号： F16H57/0434 , F04B1/2064 , F04B1/22 , F04B1/324 , F04B23/06 , F04B23/106 , F04B23/12 , F04B49/002 , F04B49/24 , F04B2205/173 , F16D31/02 , F16H57/04 , F16H61/4043 , F16H61/4139
摘要： The present invention provides a pump unit including at least one hydraulic pump with inlet and outlet ports, a pump case for accommodating the hydraulic pump having an opening through which the hydraulic pump is insertable, and a lid, called a center section, closing the pump case. The center section forms a pair of inlet/outlet passages communicating an end with the inlet and outlet ports of the hydraulic pump and an end opening through a pump case abutting surface of the center section, and a first charging passage by which hydraulic fluid is fed through the pump case abutting surface of the center section. At least one of the pump case and the center section communicates the first charging passage with the pair of inlet/outlet passages via a first hydraulic fluid feeding valve preventing the reverse flow into said first charging passage.

100. 发明授权

US07353650B2 Axle driving apparatus 失效
标题翻译：车轴驱动装置
公开(公告)号：US07353650B2
公开(公告)日：2008-04-08
申请号：US11521352
申请日：2006-09-15
申请人： Kenichi Takada , Ryota Ohashi
发明人： Kenichi Takada , Ryota Ohashi
IPC分类号： F16D31/02
CPC分类号： F16H61/437 , B60K17/105 , B60Y2200/223 , F16D31/02 , F16H61/433
摘要： An axle driving apparatus comprising a common housing in which a hydraulic pump and a hydraulic motor fluidly connected with each other and an axle driven by the hydraulic motor are disposed, At least one of the hydraulic pump and the hydraulic motor is variable in displacement and has a capacity changing device for changing its capacity. A hydraulic actuator is provided in the housing for controlling the capacity changing device. A control valve for hydraulically controlling the hydraulic actuator is provided in the housing. A center section for fluidly connecting the hydraulic pump and the hydraulic motor with each other is fixedly disposed in the housing and a driving part of the hydraulic actuator and the control valve are incorporated in the center section. A rotary member operatively connected to a human-operated traveling control member provided on a vehicle is rotatably supported by the housing. A link member is interposed between the rotary member and the control valve so as to alter the rotational movement of the rotary member to the reciprocal movement of the control valve. The driving part of the hydraulic actuator is connected to the link member for its feedback.
摘要翻译：一种车轴驱动装置，包括：公共壳体，其中配置有液压泵和液压马达彼此流体连接的液压马达和由液压马达驱动的轴，所述液压泵和所述液压马达中的至少一个位移可变，并且具有用于改变其容量的容量改变装置。液压致动器设置在壳体中用于控制容量改变装置。用于液压控制液压致动器的控制阀设置在壳体中。用于将液压泵和液压马达彼此流体连接的中心部分固定地设置在壳体中，并且液压致动器和控制阀的驱动部分结合在中心部分中。可操作地连接到设置在车辆上的人造行进控制构件的旋转构件由壳体可旋转地支撑。连杆构件设置在旋转构件和控制阀之间，以便改变旋转构件的旋转运动与控制阀的往复运动。液压致动器的驱动部分连接到连杆构件以用于其反馈。

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