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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
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。
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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
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.
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公开(公告)号：US20070272469A1
公开(公告)日：2007-11-29
申请号：US11683251
申请日：2007-03-07
申请人： Ryota OHASHI , Hironori Sumomozawa
发明人： Ryota OHASHI , Hironori Sumomozawa
IPC分类号： B60K17/00
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 for supply and discharge of hydraulic fluid into and from an actuator upon receiving driving power from a driving source is provided, in which said actuator is fluidly connected to said pump unit via a hydraulic circuit. The pump unit includes an input member operatively connected to the driving source, a first hydraulic pump body operatively connected to the input member, a pump case for accommodating the first hydraulic pump body and forming a hydraulic fluid sump, and a PTO unit accommodated within the pump case. The PTO unit includes a PTO shaft supported by the pump case so as to have an end extending outward from the pump case, and a clutch mechanism for selectively enabling and disabling transmission of driving power from the input member to the PTO shaft.
摘要翻译： 提供一种用于在从驱动源接收驱动力时向液压流体供给和排出致动器的泵单元，其中所述致动器经由液压回路流体地连接到所述泵单元。 泵单元包括可操作地连接到驱动源的输入构件，可操作地连接到输入构件的第一液压泵体，用于容纳第一液压泵体并形成液压油槽的泵壳，以及容纳在该内腔内的PTO单元 泵壳。 PTO单元包括由泵壳支撑的PTO轴，以便具有从泵壳向外延伸的端部，以及离合器机构，用于选择性地启用和禁止驱动力从输入构件传递到PTO轴。
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公开(公告)号：US20070204609A1
公开(公告)日：2007-09-06
申请号：US11735398
申请日：2007-04-13
IPC分类号： F16D39/00
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。
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公开(公告)号：US20070098570A1
公开(公告)日：2007-05-03
申请号：US11641784
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.
摘要翻译： 本发明提供了一种串联泵单元，其包括：分别具有第一泵轴和第二泵轴的第一液压泵和第二液压泵，第一泵轴和第二泵轴分别具有连接在一起的相邻端，使得第一和第二泵轴同轴对准， 可串联连接; 用于容纳第一液压泵和第二液压泵的公共壳体; 以及分别支撑第一和第二液压泵的第一中心部分和第二中心部分。
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公开(公告)号：US20070006581A1
公开(公告)日：2007-01-11
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： F16D31/02
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。
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公开(公告)号：US07114333B2
公开(公告)日：2006-10-03
申请号：US11028627
申请日：2005-01-05
IPC分类号： F16D39/00
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.
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公开(公告)号：US06425244B1
公开(公告)日：2002-07-30
申请号：US09644568
申请日：2000-08-24
申请人： Ryota Ohashi , Hironori Sumomozawa
发明人： Ryota Ohashi , Hironori Sumomozawa
IPC分类号： F16H3900
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。
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公开(公告)号：US06216560B1
公开(公告)日：2001-04-17
申请号：US09457584
申请日：1999-12-09
IPC分类号： B60K1710
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。
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公开(公告)号：US07971435B2
公开(公告)日：2011-07-05
申请号：US11735398
申请日：2007-04-13
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。
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