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61. 发明授权

US06260339B1 Axle driving unit for a lawn tractor 有权
公开(公告)号：US06260339B1
公开(公告)日：2001-07-17
申请号：US09452147
申请日：1999-12-01
申请人： Robert Abend , Norihiro Ishii , Ryota Ohashi
发明人： Robert Abend , Norihiro Ishii , Ryota Ohashi
IPC分类号： A01D3403
CPC分类号： A01D34/6806 , A01D69/03 , A01D2101/00 , B60K17/105 , B60Y2200/223 , Y10S56/04 , Y10S56/06 , Y10T74/2186
摘要： An axle driving unit having a housing (21,22) for supporting a first axle (17) for mounting thereon a first driving wheel (3L), and a longer second axle (18) for mounting thereon a second driving wheel (3R). The axle driving unit is eccentrically mounted on a body frame (1) in proximity to the first driving wheel (3L). A speed change transmission (T) is disposed in an enlarged region of the housing that extends substantially perpendicularly with respect to the axles (17,18). The axle driving unit can thus be easily disposed to the side of a chute (6) of a rear-discharge type lawn tractor.

62. 发明授权

US07971435B2 Hyrdaulic transmission 有权
标题翻译： Hyrdaulic传输
公开(公告)号：US07971435B2
公开(公告)日：2011-07-05
申请号：US11735398
申请日：2007-04-13
申请人： Hironori Sumomozawa , Shigenori Sakikawa , Ryota Ohashi
发明人： Hironori Sumomozawa , Shigenori Sakikawa , Ryota Ohashi
IPC分类号： F16D31/02
CPC分类号： F16D31/02
摘要： A hydraulic transmission comprises a hydraulic pump and a hydraulic motor, which are mounted onto a center section to be fluidly connected to each other through a closed fluid circuit formed in the center section. A neutral valve is connected to the closed fluid circuit. The neutral valve is fitted into an outward opened end of a vertical slanted oil hole of the closed fluid circuit. Alternatively, the neutral valve is fitted into an outward opened end of a straight oil hole having an opposite outward opened end into which a charge check valve is fitted.
摘要翻译：液压变速器包括液压泵和液压马达，其通过形成在中心部分中的封闭流体回路安装在中心部分上以彼此流体连接。中性阀连接到封闭的流体回路。中性阀安装在封闭流体回路的垂直倾斜油孔的向外开口端。或者，中性阀装配到具有相对的向外开口端的直油孔的向外开口端中，安装充电止回阀。

63. 发明授权

US07905711B2 Multiple pump unit 失效
标题翻译：多泵单元
公开(公告)号：US07905711B2
公开(公告)日：2011-03-15
申请号：US11781510
申请日：2007-07-23
申请人： Yasuhisa Mochizuki , Ryota Ohashi
发明人： Yasuhisa Mochizuki , Ryota Ohashi
IPC分类号： F04B1/12 , F04B27/08
CPC分类号： F04B23/10 , F04B23/106 , F04B23/12 , F04C2/102 , F04C11/005
摘要： There is provided a multiple pump unit including a pump shaft, a first pump, a pump housing, a second pump and a fluid passage block connected to one end surface in an axis line direction of the pump housing. One or both contacting surfaces of the pump housing and the fluid passage block is formed with a concave portion for accommodating the second pump. The pump housing is provided with a suction fluid passage guiding hydraulic fluid to a suction opening of the first pump and a first pump discharge fluid passage having a distal end that forms a first pump discharge port. The fluid passage block is provided with a second pump discharge port having the second pump as a hydraulic source.
摘要翻译：提供了一种多泵单元，包括泵轴，第一泵，泵壳体，第二泵和连接到泵壳体的轴线方向上的一个端面的流体通道块。泵壳体和流体通道块的一个或两个接触表面形成有用于容纳第二泵的凹部。泵壳体设置有将液压流体引导到第一泵的吸入口的抽吸流体通道和具有形成第一泵排出口的远端的第一泵排出流体通道。流体通道块设置有具有作为液压源的第二泵的第二泵排出口。

64. 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。

65. 发明申请

US20090260354A1 Axle Driving Apparatus 有权
标题翻译：车轴驱动装置
公开(公告)号：US20090260354A1
公开(公告)日：2009-10-22
申请号：US12431467
申请日：2009-04-28
申请人： Kenichi TAKADA , Ryota Ohashi , Hironori Sumomozawa , Hiroaki Shimizu
发明人： Kenichi TAKADA , Ryota Ohashi , Hironori Sumomozawa , Hiroaki Shimizu
IPC分类号： F16D31/02
CPC分类号： B60K17/105 , F01B3/02 , F02B61/00 , F16D31/02 , F16H39/14 , Y10T74/2066 , Y10T74/2186
摘要： An axle driving apparatus in which a hydraulic pump and a hydraulic motor which constitute a hydrostatic transmission are disposed on a center section. In a horizontal portion of the center section are provided a pair of linear oil passages in parallel to each other. A pair of arcuate ports are provided on a pump mounting surface formed on the horizontal portion of the center section. The pair of arcuate ports are substantially perpendicular with respect to the direction in which the oil passages extend. The axis of slanting movement of a movable swash plate of the hydraulic pump extends laterally of the vehicle body on which the axle driving apparatus is provided. The rotating direction of an arm provided on a control shaft for slantingly operating the movable swash plate is coincident with the operating direction of a control rod connected with a speed changing member. Thus, the link mechanism for connecting the speed changing member and the control arm for the movable swash plate is simplified.
摘要翻译：其中构成静液压变速器的液压泵和液压马达设置在中心部分上的车轴驱动装置。在中心部分的水平部分中设置有彼此平行的一对直线油道。一对弧形端口设置在形成在中心部分的水平部分上的泵安装表面上。一对弓形端口相对于油路延伸的方向基本垂直。液压泵的可动斜盘的倾斜运动的轴线在设置有车轴驱动装置的车身的侧面上延伸。设置在用于倾斜地操作可动斜盘的控制轴上的臂的旋转方向与与变速构件连接的控制杆的操作方向一致。因此，用于连接变速构件和用于可动斜盘的控制臂的连杆机构被简化。

66. 发明授权

US07418819B2 Pump unit 有权
标题翻译：泵单元
公开(公告)号：US07418819B2
公开(公告)日：2008-09-02
申请号：US11464938
申请日：2006-08-16
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。

67. 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.

68. 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。

69. 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。

70. 发明申请

US20070098569A1 Tandem pump unit 有权
公开(公告)号：US20070098569A1
公开(公告)日：2007-05-03
申请号：US11641783
申请日：2006-12-20
申请人： Ryota Ohashi , Hironori Sumomozawa
发明人： Ryota Ohashi , Hironori Sumomozawa
IPC分类号： F04B35/00
CPC分类号： F16H57/04 , F04B1/22 , F04B1/324 , F04B23/02 , F04B23/06 , F04B49/002 , F04B2205/173
摘要： The present invention provides a tandem pump unit that includes: a first hydraulic pump and a second hydraulic pump respectively having a first pump shaft and a second pump shaft respectively having adjacent ends connected together so that the first and second pump shafts are coaxially aligned and non-rotatably connected in tandem; a common housing for accommodating the first hydraulic pump and the second hydraulic pump; and a first center section and a second center section that respectively support the first and second hydraulic pumps.

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