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1. 发明申请

US20050226747A1 Hydraulic pump unit, hydraulic pump set, and working vehicle 有权
标题翻译：液压泵单元，液压泵组和作业车
公开(公告)号：US20050226747A1
公开(公告)日：2005-10-13
申请号：US11102708
申请日：2005-04-11
申请人： Ryota Ohashi , Manabu Kawakami , Shigenori Sakikawa , Takeaki Nozaki
发明人： Ryota Ohashi , Manabu Kawakami , Shigenori Sakikawa , Takeaki Nozaki
IPC分类号： B60K17/10 , F04B53/04 , F04B53/16 , F16H39/02 , F04B17/06 , F04B35/06
CPC分类号： F04B53/16 , F04B53/04
摘要： There is provided a working vehicle having first and second hydraulic pump units operatively driven by a driving source and arranged away to each other in a width direction of the vehicle. In the working vehicle, each of the first and second hydraulic pump units includes a pump body; a port block formed with an oil passage for supplying/discharging an operating fluid to/from said pump body; a pump case connected to the port block so as to define a pump body accommodating space for surrounding the pump body; and a pump shaft for rotatably driving the pump body, the pump shaft having an input end operatively connected to said driving source. A drain port for opening the pump body accommodating space outward and a charge suction port for drawing in an oil from an oil tank in order to supply a charge oil to a hydraulic circuit fluidly connecting with the corresponding hydraulic motor unit are provided respectively in first and second assemblies formed by the corresponding pump case and port block. The drain port is provided on a wall surface other than an opposing wall surface facing each other of the wall surfaces of said first and second assemblies when arranging the first and second assemblies so that the input ends of each pump shaft are directed in the same direction.
摘要翻译：提供了一种工作车辆，其具有由驱动源可操作地驱动并且在车辆的宽度方向上彼此远离布置的第一和第二液压泵单元。在工作车辆中，第一和第二液压泵单元中的每一个包括泵体; 形成有用于向/从所述泵体供给/排出工作流体的油路的端口块; 连接到所述端口块的泵壳，以便限定用于围绕所述泵体的泵体容纳空间; 以及用于可旋转地驱动所述泵体的泵轴，所述泵轴具有可操作地连接到所述驱动源的输入端。分别在第一和第二位置分别设置用于将泵主体容纳空间向外打开的排出口和用于从油箱吸入油的供给吸入口，以便向与液压马达单元流体连接的液压回路供油装置由相应的泵壳和端口块形成的第二组件。当布置第一和第二组件时，排水口设置在不同于所述第一和第二组件的壁表面彼此面对的相对壁表面的壁表面上，使得每个泵轴的输入端指向相同的方向。

2. 发明申请

US20080054717A1 Hydraulic pump unit, hydraulic pump set, and working vehicle 有权
标题翻译：液压泵单元，液压泵组和作业车
公开(公告)号：US20080054717A1
公开(公告)日：2008-03-06
申请号：US11925241
申请日：2007-10-26
申请人： Ryota Ohashi , Manabu Kawakami , Shigenori Sakikawa , Takeaki Nozaki
发明人： Ryota Ohashi , Manabu Kawakami , Shigenori Sakikawa , Takeaki Nozaki
IPC分类号： B60T8/40
CPC分类号： F04B53/16 , F04B53/04
摘要： There is provided a working vehicle having first and second hydraulic pump units operatively driven by a driving source and arranged away to each other in a width direction of the vehicle. In the working vehicle, each of the first and second hydraulic pump units includes a pump body; a port block formed with an oil passage for supplying/discharging an operating fluid to/from said pump body; a pump case connected to the port block so as to define a pump body accommodating space for surrounding the pump body; and a pump shaft for rotatably driving the pump body, the pump shaft having an input end operatively connected to said driving source. A drain port for opening the pump body accommodating space outward and a charge suction port for drawing in an oil from an oil tank in order to supply a charge oil to a hydraulic circuit fluidly connecting with the corresponding hydraulic motor unit are provided respectively in first and second assemblies formed by the corresponding pump case and port block. The drain port is provided on a wall surface other than an opposing wall surface facing each other of the wall surfaces of said first and second assemblies when arranging the first and second assemblies so that the input ends of each pump shaft are directed in the same direction.
摘要翻译：提供了一种工作车辆，其具有由驱动源可操作地驱动并且在车辆的宽度方向上彼此远离布置的第一和第二液压泵单元。在工作车辆中，第一和第二液压泵单元中的每一个包括泵体; 形成有用于向/从所述泵体供给/排出工作流体的油路的端口块; 连接到所述端口块的泵壳，以便限定用于围绕所述泵体的泵体容纳空间; 以及用于可旋转地驱动所述泵体的泵轴，所述泵轴具有可操作地连接到所述驱动源的输入端。分别在第一和第二位置分别设置用于将泵主体容纳空间向外打开的排出口和用于从油箱吸入油的供给吸入口，以便向与液压马达单元流体连接的液压回路供油装置由相应的泵壳和端口块形成的第二组件。当布置第一和第二组件时，排水口设置在不同于所述第一和第二组件的壁表面彼此面对的相对壁表面的壁表面上，使得每个泵轴的输入端指向相同的方向。

3. 发明授权

US07316287B2 Hydraulic pump unit, hydraulic pump set, and working vehicle 有权
公开(公告)号：US07316287B2
公开(公告)日：2008-01-08
申请号：US11102708
申请日：2005-04-11
申请人： Ryota Ohashi , Manabu Kawakami , Shigenori Sakikawa , Takeaki Nozaki
发明人： Ryota Ohashi , Manabu Kawakami , Shigenori Sakikawa , Takeaki Nozaki
IPC分类号： B60K17/00 , B60K17/30 , B60K3/00 , B60K11/24 , B60K11/02
CPC分类号： F04B53/16 , F04B53/04
摘要： There is provided a working vehicle having first and second hydraulic pump units operatively driven by a driving source and arranged away to each other in a width direction of the vehicle. In the working vehicle, each of the first and second hydraulic pump units includes a pump body; a port block formed with an oil passage for supplying/discharging an operating fluid to/from said pump body; a pump case connected to the port block so as to define a pump body accommodating space for surrounding the pump body; and a pump shaft for rotatably driving the pump body, the pump shaft having an input end operatively connected to said driving source. A drain port for opening the pump body accommodating space outward and a charge suction port for drawing in an oil from an oil tank in order to supply a charge oil to a hydraulic circuit fluidly connecting with the corresponding hydraulic motor unit are provided respectively in first and second assemblies formed by the corresponding pump case and port block. The drain port is provided on a wall surface other than an opposing wall surface facing each other of the wall surfaces of said first and second assemblies when arranging the first and second assemblies so that the input ends of each pump shaft are directed in the same direction.

4. 发明授权

US07934578B2 Hydraulic pump unit, hydraulic pump set, and working vehicle 失效
标题翻译：液压泵单元，液压泵组和作业车
公开(公告)号：US07934578B2
公开(公告)日：2011-05-03
申请号：US12748805
申请日：2010-03-29
申请人： Ryota Ohashi , Manabu Kawakami , Shigenori Sakikawa , Takeaki Nozaki
发明人： Ryota Ohashi , Manabu Kawakami , Shigenori Sakikawa , Takeaki Nozaki
IPC分类号： B60K17/00 , B62D11/00
CPC分类号： F04B53/16 , F04B53/04
摘要： There is provided a working vehicle having first and second hydraulic pump units operatively driven by a driving source and arranged away to each other in a width direction of the vehicle. In the working vehicle, each of the first and second hydraulic pump units includes a pump body; a port block formed with an oil passage for supplying/discharging an operating fluid to/from said pump body; a pump case connected to the port block so as to define a pump body accommodating space for surrounding the pump body; and a pump shaft for rotatably driving the pump body, the pump shaft having an input end operatively connected to said driving source. A drain port for opening the pump body accommodating space outward and a charge suction port for drawing in an oil from an oil tank in order to supply a charge oil to a hydraulic circuit fluidly connecting with the corresponding hydraulic motor unit are provided respectively in first and second assemblies formed by the corresponding pump case and port block. The drain port is provided on a wall surface other than an opposing wall surface facing each other of the wall surfaces of said first and second assemblies when arranging the first and second assemblies so that the input ends of each pump shaft are directed in the same direction.
摘要翻译：提供了一种工作车辆，其具有由驱动源可操作地驱动并且在车辆的宽度方向上彼此远离布置的第一和第二液压泵单元。在工作车辆中，第一和第二液压泵单元中的每一个包括泵体; 形成有用于向/从所述泵体供给/排出工作流体的油路的端口块; 连接到所述端口块的泵壳，以便限定用于围绕所述泵体的泵体容纳空间; 以及用于可旋转地驱动所述泵体的泵轴，所述泵轴具有可操作地连接到所述驱动源的输入端。分别在第一和第二位置分别设置用于将泵主体容纳空间向外打开的排出口和用于从油箱吸入油的供给吸入口，以便向与液压马达单元流体连接的液压回路供油装置由相应的泵壳和端口块形成的第二组件。当布置第一和第二组件时，排水口设置在不同于所述第一和第二组件的壁表面彼此面对的相对壁表面的壁表面上，使得每个泵轴的输入端指向相同的方向。

5. 发明授权

US07520131B2 Pump unit 失效
标题翻译：泵单元
公开(公告)号：US07520131B2
公开(公告)日：2009-04-21
申请号：US11939800
申请日：2007-11-14
申请人： Shigenori Sakikawa , Tomoyuki Tsuji , Takeaki Nozaki
发明人： Shigenori Sakikawa , Tomoyuki Tsuji , Takeaki Nozaki
IPC分类号： F16D31/02
CPC分类号： F04B1/22 , F04B1/324
摘要： There is provided a pump unit including a plurality of hydraulic pump bodies disposed in parallel to each other, a plurality of pump shafts respectively supporting the plurality of hydraulic pump bodies in a relatively non-rotatable manner and a pump housing accommodating the plurality of pump bodies and supporting the plurality of pump shafts in a rotatable manner around respective axis lines, wherein each of the plurality of pump shafts has at least one end extending outward from the pump housing so as to form an input end.
摘要翻译：提供了一种泵单元，其包括彼此平行设置的多个液压泵体，分别以相对不可旋转的方式支撑多个液压泵体的多个泵轴和容纳多个泵体的泵壳体并且围绕相应的轴线以可旋转的方式支撑所述多个泵轴，其中所述多个泵轴中的每一个具有从所述泵壳向外延伸的至少一个端部，以形成输入端。

6. 发明申请

US20100257856A1 Pump Unit And Hydrostatic Transmission 审中-公开
标题翻译：泵单元和静液压传动
公开(公告)号：US20100257856A1
公开(公告)日：2010-10-14
申请号：US12820604
申请日：2010-06-22
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： F16H39/00
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; 一个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。

7. 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。

8. 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。

9. 发明授权

US07430863B2 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：US07430863B2
公开(公告)日：2008-10-07
申请号：US11746945
申请日：2007-05-10
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。

10. 发明申请

US20070209355A1 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：US20070209355A1
公开(公告)日：2007-09-13
申请号：US11746945
申请日：2007-05-10
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： F16D31/02
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。

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