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11. 发明申请

US20070163817A1 Pump unit 失效
标题翻译：泵单元
公开(公告)号：US20070163817A1
公开(公告)日：2007-07-19
申请号：US11623687
申请日：2007-01-16
申请人： Ryota Ohashi , Hironori Sumomozawa , Nobuhisa Kamikawa , Masahisa Kawamura
发明人： Ryota Ohashi , Hironori Sumomozawa , Nobuhisa Kamikawa , Masahisa Kawamura
IPC分类号： B60K25/00
CPC分类号： B60K17/28 , B60K17/10
摘要： There is provided a pump unit including plurality of hydraulic pump bodies respectively fluidly connected to plurality of hydraulic motor bodies, which are disposed away from the pump unit, so as to form closed circuits, the pump unit including: a housing accommodating the plurality of hydraulic pump bodies so that the plurality of hydraulic pump bodies are operatively driven by a common driving source; a charge pump body operatively driven by the driving source; a suction fluid passage fluidly connected to a suction side of the charge pump body; a discharge fluid passage fluidly connected to a discharge side of the charge pump body; a charge passage for replenishing a part of pressurized fluid in the discharge fluid passage into each of the closed circuits; and a working machine operating fluid passage for supplying a part of the pressurized fluid in the discharge fluid passage toward an external hydraulic actuator.
摘要翻译：提供了一种泵单元，包括多个液压泵体，其分别流体连接到远离泵单元的多个液压马达主体，以便形成闭合回路，所述泵单元包括：容纳多个液压的壳体使得多个液压泵体由共同的驱动源可操作地驱动; 由驱动源可操作地驱动的电荷泵体; 吸入流体通道，其流体地连接到所述电荷泵体的吸入侧; 排出流体通道，其流体地连接到电荷泵体的排出侧; 用于将排出流体通道中的加压流体的一部分补充到每个闭合回路中的装料通道; 以及工作机工作流体通道，用于将排出流体通道中的一部分加压流体提供给外部液压致动器。

12. 发明授权

US07231765B2 Pump unit and hydrostatic transmission 有权
标题翻译：泵单元和静液压传动
公开(公告)号：US07231765B2
公开(公告)日：2007-06-19
申请号：US11269643
申请日：2005-11-09
申请人： Masahisa Kawamura , Ryota Ohashi , Hironori Sumomozawa , Takeaki Nozaki
发明人： Masahisa Kawamura , Ryota Ohashi , Hironori Sumomozawa , Takeaki Nozaki
IPC分类号： B60K17/28 , A01D34/76
CPC分类号： F04B1/22 , B60K17/28 , F04B23/06 , F04B23/106 , F16D31/02 , F16D31/08 , F16H39/14 , F16H61/4139
摘要： There is provided a pump unit configured to be capable of transmitting a rotational power from a driving power source which is operatively connected thereto to an actuator through a pair of hydraulic fluid lines. The pump unit includes: an input shaft; a hydraulic pump main body; a PTO shaft; a PTO clutch mechanism; an auxiliary pump main body; a suction line; a discharge line; a charge line; a PTO hydraulic fluid line; a pressure-reducing valve; and a resistance valve. The PTO hydraulic fluid line and the charge line are fluidly connected to the primary side and a secondary side of the pressure-reducing valve, respectively.
摘要翻译：提供了一种泵单元，其构造成能够通过一对液压流体管线将来自与其可操作地连接的驱动动力源的旋转动力传递到致动器。泵单元包括：输入轴; 液压泵主体; PTO轴; PTO离合器机构; 辅助泵主体; 吸力线排放线充电线 PTO液压油管线; 减压阀; 和电阻阀。 PTO液压流体管线和加料管路分别与减压阀的初级侧和次级侧流体连接。

13. 发明申请

US20060008357A1 Pump system, charge relief mechanism and oil pressure control mechanism 失效
标题翻译：泵系统，减压机构和油压控制机构
公开(公告)号：US20060008357A1
公开(公告)日：2006-01-12
申请号：US11150250
申请日：2005-06-13
申请人： Masahisa Kawamura , Nobuhisa Kamikawa , Takeaki Nozaki , Kengo Sasahara
发明人： Masahisa Kawamura , Nobuhisa Kamikawa , Takeaki Nozaki , Kengo Sasahara
IPC分类号： F04B35/00 , F04B17/00
CPC分类号： F04B1/22 , F04B23/06 , Y10T137/7869
摘要： There is provided a pump system including; a plurality of hydraulic pump bodies arranged in parallel; a plurality of pump shafts respectively driving the plurality of hydraulic pump bodies; a power transmission mechanism operatively connecting the plurality of pump shafts; and a pump case which accommodating the plurality of hydraulic pump bodies and the power transmission mechanism, and supports the plurality of pump shafts in a rotatable manner about an axis line, the pump case including a port block formed with supply/discharge oil passages for the plurality of pump bodies. One pump shaft of the plurality of pump shafts has a first end extending outward from the pump case so as to form an input end operatively connected to a driving source. The one pump shaft is directly or indirectly supported by the pump case at a region which is closer to the input end via a plurality of bearing members.
摘要翻译：提供了一种泵系统，包括：多个并联排列的液压泵体; 分别驱动多个液压泵体的多个泵轴; 动力传递机构，其可操作地连接所述多个泵轴; 以及容纳所述多个液压泵主体和所述动力传递机构的泵壳体，并且以可旋转的方式围绕轴线支撑所述多个泵轴，所述泵壳体包括形成有供给/排出油路的端口块，多个泵体。多个泵轴中的一个泵轴具有从泵壳向外延伸的第一端，以形成可操作地连接到驱动源的输入端。一个泵轴通过多个轴承部件在较靠近输入端的区域直接或间接地由泵壳体支撑。

14. 发明授权

US06199653B1 Four-wheel driven vehicle 有权
标题翻译：四轮驱动车
公开(公告)号：US06199653B1
公开(公告)日：2001-03-13
申请号：US09197209
申请日：1998-11-20
申请人： Mizuya Matsufuji , Masahisa Kawamura
发明人： Mizuya Matsufuji , Masahisa Kawamura
IPC分类号： B60K1734
CPC分类号： B60K23/08 , B60K17/28 , B60K17/35
摘要： A four-wheel driven wheel has a rear-wheel driving system branching at the intermediate thereof into a front-wheel driving system comprising a first transmission for driving the front wheels at a peripheral speed substantially identical with that of the rear wheels and a second transmission for driving the front wheels at a peripheral speed higher than that of the rear wheels. A hydraulic clutch device is provided, including a hydraulically operable first friction clutch for connecting and separating the first transmission with the rear-wheel driving system, a hydraulically double-acting first piston for engagement and disengagement of the first friction clutch, a first fluid chamber for the clutch-engaging action provided at one side the first friction clutch, a second fluid chamber for the clutch-disengaging action provided at the other side thereof, and a biasing member for biasing the first friction clutch to engage disposed in the first chamber. A second clutch device is also provided including a hydraulically operable second friction clutch for connecting and separating the second transmission with the rear-wheel driving system, a hydraulically single-acting second piston for engagement of the second friction clutch, and a third piston provided at one side of the second piston for the clutch-engaging action thereof. A directional control valve is provided which is operable to be put into one of three positions: a first position wherein fluid is supplied to the first chamber; a second position wherein fluid is supplied to the second chamber; and a third position wherein fluid is supplied to the third chamber.
摘要翻译：四轮驱动轮具有在其中间分支的后轮驱动系统，该前轮驱动系统包括：第一变速器，用于以与后轮大致相同的圆周速度驱动前轮，第二变速器用于以比后轮高的圆周速度驱动前轮。提供了一种液压离合器装置，包括用于将第一变速器与后轮驱动系统连接和分离的液压可操作的第一摩擦离合器，用于接合和分离第一摩擦离合器的液压双作用的第一活塞，第一流体室对于设置在第一摩擦离合器的一侧的离合器接合动作，设置在其另一侧的用于离合器分离动作的第二流体室以及用于偏置设置在第一室中的第一摩擦离合器的偏置构件。还提供了一种第二离合器装置，其包括用于将第二变速器与后轮驱动系统连接和分离的液压可操作的第二摩擦离合器，用于接合第二摩擦离合器的液压单作用第二活塞和设置在第二摩擦离合器用于其离合器啮合动作的第二活塞的一侧。提供方向控制阀，其可操作以放入三个位置之一：第一位置，其中将流体供应到第一室; 第二位置，其中流体被供应到第二室; 以及第三位置，其中流体被供应到第三室。

15. 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。

16. 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。

17. 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。

18. 发明授权

US07762371B2 Pump unit and hydrostatic transmission 失效
标题翻译：泵单元和静液压传动
公开(公告)号：US07762371B2
公开(公告)日：2010-07-27
申请号：US12206451
申请日：2008-09-08
申请人： Masahisa Kawamura , Ryota Ohashi , Hironori Sumomozawa , Takeaki Nozaki
发明人： Masahisa Kawamura , Ryota Ohashi , Hironori Sumomozawa , Takeaki Nozaki
IPC分类号： B60K17/00 , B60K7/00 , B60K17/14
CPC分类号： F04B1/22 , B60K17/28 , F04B23/06 , F04B23/106 , F16D31/02 , F16D31/08 , F16H39/14 , F16H61/4139
摘要： There is provided a pump unit configured to be capable of transmitting a rotational per from a driving power source which is operatively connected thereto to an actuator through a pair of hydraulic fluid lines. The pump unit includes: an input shaft; a hydraulic pump main body; a PTO shaft; a PTO clutch mechanism; and auxiliary pump main body; a suction line; a discharge line; a charge line; a PTO hydraulic fluid line; a pressure-reducing valve; and a resistance valve. The PTO hydraulic fluid line and the charge line are fluidly connected to the primary side and a secondary side of the pressure-reducing valve, respectively.
摘要翻译：提供了一种泵单元，其构造成能够通过一对液压流体管线将来自与其可操作地连接的驱动动力源的旋转传递到致动器。泵单元包括：输入轴; 液压泵主体; PTO轴; PTO离合器机构; 和辅助泵主体; 吸力线排放线充电线 PTO液压油管线; 减压阀; 和电阻阀。 PTO液压流体管线和加料管路分别与减压阀的初级侧和次级侧流体连接。

19. 发明授权

US07677038B2 Pump unit 失效
标题翻译：泵单元
公开(公告)号：US07677038B2
公开(公告)日：2010-03-16
申请号：US11625046
申请日：2007-01-19
申请人： Ryota Ohashi , Hironori Sumomozawa , Nobuhisa Kamikawa , Masahisa Kawamura
发明人： Ryota Ohashi , Hironori Sumomozawa , Nobuhisa Kamikawa , Masahisa Kawamura
IPC分类号： F04B49/00 , F04B23/00
CPC分类号： F04B1/324 , F04B1/22 , F04B23/06 , F16H39/14 , F16H61/4139 , F16H61/44
摘要： There is provided a pump unit including plurality of hydraulic pumps respectively fluidly connected to plurality of hydraulic motors, which are disposed away from the pump unit, so as to form closed circuits, the pump unit including a pump case accommodating the plurality of hydraulic pumps so that the plurality of hydraulic pumps are operatively driven by a common power source; and a filter mounted at the pump case so as to be inserted in a charge passage for replenishing operation fluid from a fluid sump to the closed circuits.
摘要翻译：提供了一种泵单元，其包括分别流体连接到多个液压马达的泵单元，多个液压马达远离泵单元设置，以便形成闭合回路，泵单元包括容纳多个液压泵的泵壳所述多个液压泵由公共电源可操作地驱动; 以及安装在泵壳体上的过滤器，以将其插入充电通道中，以将操作流体从流体槽补充到闭合回路。

20. 发明申请

US20090260911A1 Hydraulic Drive Working Vehicle 有权
标题翻译：液压驱动工作车
公开(公告)号：US20090260911A1
公开(公告)日：2009-10-22
申请号：US12350695
申请日：2009-01-08
申请人： Takeaki NOZAKI , Masahisa Kawamura , Toshifumi Yasuda
发明人： Takeaki NOZAKI , Masahisa Kawamura , Toshifumi Yasuda
IPC分类号： B60K8/00
CPC分类号： B60K17/356 , B60K17/105 , B60Y2200/223 , F16H61/4043 , F16H61/421 , F16H61/431 , F16H61/444
摘要： A hydraulic drive vehicle includes a bypass valve for fluidly connecting or disconnecting a pump/second-motor line and a second-motor/first-motor line, and set a capacity of a first hydraulic motor to a standard capacity which makes a peripheral speed of a first wheel driven by the first hydraulic motor equal to a peripheral speed of a second wheel driven by a second hydraulic motor when the bypass valve fluidly disconnects the two lines and set the capacity of the first hydraulic motor to a first capacity smaller than the standard capacity when the bypass valve fluidly connects the two lines. The present invention makes it possible to widen a variable range in which a traveling speed of the vehicle could be changed.
摘要翻译：液压驱动车辆包括用于流体连接或断开泵/第二电动机线路和第二电动机/第一电动机线路的旁通阀，并且将第一液压马达的容量设定为标准容量，其使得圆周速度第一液压马达驱动的第一轮等于由第二液压马达驱动的第二轮的圆周速度，当旁通阀流体地断开两条线并将第一液压马达的容量设定为小于标准的第一容量时旁通阀流体连接两条线路时的容量。本发明可以扩大可以改变车辆行驶速度的可变范围。

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