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1.发明申请公开(公告)号：US20080185053A1
公开(公告)日：2008-08-07
申请号：US12098193
申请日：2008-04-04
IPC分类号： F16K15/00
CPC分类号： F04B1/22 , F04B23/06 , Y10T137/7869
摘要： A charge relief mechanism for setting an oil pressure of a charge line which replenishes operating oil to a pair of operating oil lines fluidly connecting a hydraulic pump body and a hydraulic actuator, includes: an oil pressure setting line; and a charge relief valve inserted in the oil pressure setting line. The charge relief valve includes a relief valve body provided with a large diameter hole, a small diameter hole, and a check valve seat formed between the large diameter hole and the small diameter hole. The large diameter hole is provided with a check valve body which is seatable on the check valve seat and is movable in the axis line direction, and a slip-out prevention member for preventing the check valve body from being separated from the large diameter hole while allowing the check valve body to selectively communicate or block between the large diameter hole and the small diameter hole.
摘要翻译： 一种用于将液压泵主体和液压致动器流体连接的一对工作油管线补充操作油的充气管线的油压设定为电荷释放机构，包括：油压设定线; 以及插入油压设定线中的减压阀。 减压阀包括设置有大直径孔，小直径孔和形成在大直径孔和小直径孔之间的止回阀座的安全阀体。 大直径孔设置有止回阀体，该止回阀体可在止回阀座上座位并且能够沿轴线方向移动，并且防止止回阀体与大直径孔分离的防脱出构件同时 允许止回阀体在大直径孔和小直径孔之间选择性地连通或阻塞。
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公开(公告)号：US4643442A
公开(公告)日：1987-02-17
申请号：US761886
申请日：1985-08-02
IPC分类号： E02F9/22 , A01B63/00 , A01B63/10 , F15B11/17 , A01B59/043
CPC分类号： A01B63/1006
摘要： In a working vehicle having hydraulic lift cylinder (39) on the top of rear end of the vehicle and seat (34) above the cylinder case (33) of such cylinder, fluid supply system is provided which supplies fluid from a single pump (47) to both of the lift cylinder and fluid-operated working implements. This system comprises first and second valve assemblies (49, 50), connected in series and mounted on the cylinder case (33), for controlling operation of the lift cylinder and working implements, respectively. The second valve assembly (50) is particularly disposed, for an easy mounting and piping, horizontally along a lateral direction within large open space before the cylinder head (81) of cylinder case (33) and below the seat (34) by mounting same to the front of head (81). For this, stop valve (52) for lift cylinder (39) is disposed within the head (81) so as to be displayed laterally and a vertical seating surface (96) is formed to the front of head (81).
摘要翻译： 在具有在车辆后端顶部的液压提升缸（39）和该气缸的气缸壳体（33）上方的座（34）的工作车辆中，提供了从单个泵（47）提供流体的流体供应系统 ）到提升缸和流体操作的作业工具。 该系统包括串联连接并安装在气缸壳体（33）上的第一和第二阀组件（49,50），用于分别控制提升缸和作业工具的操作。 第二阀组件（50）特别设置用于通过安装相同的方式在气缸壳体（33）的气缸盖（81）和座椅（34）下方的大开放空间内在横向方向上水平地安装和管道 到头部（81）的前部。 为此，用于提升缸（39）的截止阀（52）设置在头部（81）内以便横向显示，并且在头部（81）的前部形成有垂直的安装表面（96）。
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公开(公告)号：US08002073B2
公开(公告)日：2011-08-23
申请号：US12350695
申请日：2009-01-08
IPC分类号： B60K17/00
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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公开(公告)号：US07430863B2
公开(公告)日：2008-10-07
申请号：US11746945
申请日：2007-05-10
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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公开(公告)号：US20070209355A1
公开(公告)日：2007-09-13
申请号：US11746945
申请日：2007-05-10
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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公开(公告)号：US20060107660A1
公开(公告)日：2006-05-25
申请号：US11269643
申请日：2005-11-09
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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公开(公告)号：US5479845A
公开(公告)日：1996-01-02
申请号：US183504
申请日：1994-01-18
申请人： Masahisa Kawamura , Ryota Ohashi
发明人： Masahisa Kawamura , Ryota Ohashi
CPC分类号： F15B11/16 , B60R16/08 , B62D5/07 , F15B2211/3116 , F15B2211/325 , F15B2211/40515 , F15B2211/40523 , F15B2211/455 , F15B2211/46 , F15B2211/50518 , F15B2211/50581 , F15B2211/55 , F15B2211/7058 , F15B2211/7114 , F15B2211/7142 , F15B2211/78
摘要： Cylinder head (81) of a hydraulic lift cylinder (39) includes a fluid input port (74) and first fluid output port (75) to be connected respectively to a pump (46) and to a power steering mechanism (40). These ports preferably open at one and the other side surfaces of the head. The head further includes a second fluid output port (83) and fluid inlet port (84) which open at a front surface of the head. These ports are connected through an inside of a cover member (49a, 50a; 201; 250a) detachably mounted on the front surface of head. The head includes therein a flow divider (47) which divides inflow of the input port into first and second flows directed respectively to the first and second output ports. Fluid returned into the inlet port is directed towards a first control valve assembly (48) for the lift cylinder. A second control valve assembly (49; 250) for an auxiliary implement can be provided using the cover member as its valve housing with remaining fluid pipings to the input and first output ports unchanged. A third control valve assembly (50) can further be provided by mounting it on an upper surface on the second assembly.
摘要翻译： 液压提升缸（39）的缸盖（81）包括分别连接到泵（46）和动力转向机构（40）的流体输入端口（74）和第一流体输出端口（75）。 这些端口优选地在头部的一个和另一个侧表面上开口。 头部还包括在头部的前表面处打开的第二流体输出端口（83）和流体入口端口（84）。 这些端口通过可拆卸地安装在头部前表面上的盖构件（49a，50a; 201; 250a）的内部连接。 头部包括分流器（47），其将输入端口的流入分成分别指向第一和第二输出端口的第一和第二流。 返回到入口端口的流体指向用于提升缸的第一控制阀组件（48）。 可以使用盖构件作为其阀壳体来提供用于辅助工具的第二控制阀组件（49; 250），其中剩余的流体管道保持不变，输入端和第一输出端口不变。 第三控制阀组件（50）可以通过将其安装在第二组件的上表面上而进一步提供。
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8.发明授权Two-stage flow divider with pressure-relief valves in each stage to regulate flow in hydraulic system for working vehicles 失效两级分流器，每级有减压阀，用于调节液压系统中工作车辆的流量
公开(公告)号：US4866936A
公开(公告)日：1989-09-19
申请号：US214319
申请日：1988-07-01
申请人： Ryota Ohashi , Masahisa Kawamura , Jiro Shibata
发明人： Ryota Ohashi , Masahisa Kawamura , Jiro Shibata
CPC分类号： F15B13/022 , B62D5/07
摘要： A hydraulic flow divider has first and second flow control valves each dividing its inflow into two flows. The first flow control has a pressure relief valve and a constant orifice dividing flow to two outlets. The second flow control further divides one of these flows into a second set of two output flows. One of the output flows of the second flow control valve is directed to a power steering cylinder while secondary output flow of the second flow control valve joins flow from the other outlet of the first flow control. The arrangement secures adequate fluid supply to a priority load of the hydraulic system at low pump drive engine speeds.
摘要翻译： 液压分流器具有第一和第二流量控制阀，每个将其流入分成两个流。 第一流量控制器具有一个压力释放阀和一个恒定孔口分流到两个出口。 第二流量控制进一步将这些流中的一个分成第二组两个输出流。 第二流量控制阀的输出流量之一被引导到动力转向缸，而第二流量控制阀的二次输出流量从第一流量控制的另一个出口流入。 在低泵驱动发动机转速下，该装置可确保液压系统的优先负载的足够的液体供应。
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公开(公告)号：US20100257856A1
公开(公告)日：2010-10-14
申请号：US12820604
申请日：2010-06-22
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。
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公开(公告)号：US20090008183A1
公开(公告)日：2009-01-08
申请号：US12206451
申请日：2008-09-08
IPC分类号： B60K17/00
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; 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。
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