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    Electric-powered pump
    2.
    发明授权
    Electric-powered pump 有权

    公开(公告)号：US09599100B2

    公开(公告)日：2017-03-21

    申请号：US14491193

    申请日：2014-09-19

    申请人： Mitsubishi Electric Corporation

    发明人： Shinya Nose ,  Hidehiro Soga ,  Masayuki Aota

    IPC分类号： F04B1/18 ,  F04B1/14 ,  F04B53/10 ,  F04B7/02

    CPC分类号： F04B1/18 ,  F04B1/141 ,  F04B1/143 ,  F04B1/146 ,  F04B7/02 ,  F04B53/1037

    摘要： A movable body that has a cylinder and a valve apparatus is accommodated inside an accommodating chamber of a pump body so as to cover a discharging orifice. A piston sucks a fluid into the movable body, and discharges the fluid from inside the movable body to the discharging orifice by being slid reciprocally through a piston sliding aperture of the cylinder. A relieving passage that communicates between a suction volume space of the accommodating chamber and the discharging orifice is formed between an inner surface of the accommodating chamber and the movable body by the movable body moving away from the discharging orifice in opposition to a force from a forcing body.

    RECIPROCATING PUMP
    3.
    发明申请
    RECIPROCATING PUMP 有权
    再生泵

    公开(公告)号：US20130309112A1

    公开(公告)日：2013-11-21

    申请号：US13899207

    申请日：2013-05-21

    申请人： MARUYAMA MFG. CO., INC.

    发明人： Toshiro Nakanishi

    IPC分类号： F04B19/00

    CPC分类号： F04B19/00 ,  F04B1/0448 ,  F04B1/14 ,  F04B1/141 ,  F04B53/162

    摘要： In a reciprocating pump comprising a reciprocating member adapted to reciprocate as driven by a drive unit contained in a drive unit case, so as to perform a pumping action such that a liquid in use is aspirated into a pump chamber formed axially in front of the reciprocating member and pushed out under pressure and further comprising a high-pressure seal in slidable contact with an outer peripheral surface of the reciprocating member axially behind the pump chamber so as to prevent the liquid in use from leaking out when a high pressure is generated in the pump chamber, a flow path for the liquid in use to flow so as to bathe the drive unit therewith is provided within the drive unit case, while the rear side of the high-pressure seal is in contact with the liquid in use flowing through the drive unit case.

    摘要翻译： 在往复式泵中，包括往复运动的构件，该往复运动构件适于在由驱动单元壳体中的驱动单元驱动时往复运动，以便执行泵送动作，使得使用中的液体被吸入到在往复运动的前方轴向形成的泵室中 并且在压力下被推出并且进一步包括高压密封件，其与所述往复运动件的外周表面在所述泵室的轴向后方可滑动地接触，以便在所述泵室中产生高压时防止使用中的液体泄漏 泵室，用于流动的液体流动以使其驱动单元流动的流动路径设置在驱动单元壳体内，而高压密封件的后侧与使用中流动的液体接触， 驱动单元箱。

    High-pressure cleaning appliance
    4.
    发明授权
    High-pressure cleaning appliance 有权
    高压清洁用具

    公开(公告)号：US07874815B2

    公开(公告)日：2011-01-25

    申请号：US11894048

    申请日：2007-08-16

    申请人： Georg Wesch ,  Wolfgang Mueller

    发明人： Georg Wesch ,  Wolfgang Mueller

    IPC分类号： F04B39/02 ,  F04B1/12

    CPC分类号： F16H57/0421 ,  B08B3/026 ,  B08B2203/0294 ,  F04B1/128 ,  F04B1/141 ,  F04B1/145 ,  F04B17/03 ,  F04B53/18 ,  F16H57/0434 ,  F16H57/0482 ,  Y10T137/2322

    摘要： The invention relates to a high-pressure cleaning appliance with a motor-pump unit, comprising a pump head on which is positioned a piston subassembly, which carries a drive motor with the interposition of a planetary gearing, and has a plurality of pistons which can be moved back and forth in the longitudinal direction of the motor-pump unit and each penetrate into a pumping chamber of the pump head, and also comprising a swash-plate unit which interacts with the pistons, the planetary gearing having a sun gear which is connected in a rotationally fixed manner to the motor shaft of the drive motor and is coupled to a ring gear via planet gears rotatably mounted on a planet gear carrier, the planet gear carrier being connected in a rotationally fixed manner to the swash-plate unit. In order for it to be possible for the planetary gearing to be lubricated to good effect even when the motor-pump unit is oriented substantially vertically, it is proposed for the piston subassembly to have an oil sump into which penetrates an oil-delivery tube which is aligned coaxially with the motor shaft and is connected in a rotationally fixed manner to the planet gear carrier, it being possible for oil to be fed to the planetary gearing from the oil sump via the oil-delivery tube.

    摘要翻译： 本发明涉及一种具有电动泵单元的高压清洁器具，包括一个泵头，活塞子组件位于该泵头上，该活塞子组件带有插入行星齿轮的驱动马达，并具有多个活塞， 在电机 - 泵单元的纵向方向上来回移动，并且每个都穿入泵头的泵送室，并且还包括与活塞相互作用的斜盘单元，行星齿轮具有太阳齿轮，该太阳齿轮是 以旋转固定的方式连接到驱动电动机的电动机轴上，并通过可旋转地安装在行星齿轮架上的行星齿轮联接到齿圈，行星齿轮架以旋转固定的方式连接到旋转斜盘单元。 为了使行星齿轮传动机构可以在马达 - 泵单元基本垂直取向的情况下被润滑得到很好的效果，因此建议活塞组件具有一个油槽，该油槽穿过一个油输送管， 与电动机轴同轴对准并且以旋转固定的方式连接到行星齿轮架上，可以通过油输送管将油从油底壳供给到行星齿轮传动装置。

    Hydraulic pump circuit
    5.
    发明申请
    Hydraulic pump circuit 审中-公开
    液压泵回路

    公开(公告)号：US20040057836A1

    公开(公告)日：2004-03-25

    申请号：US10253973

    申请日：2002-09-25

    申请人： Caterpillar Inc.

    发明人： Ashraf B. Abdelrahman ,  Dennis H. Gibson ,  Joseph S. Burkitt

    IPC分类号： F04B039/00

    CPC分类号： F04B1/148 ,  F04B1/141 ,  F04B53/06 ,  F04B53/18 ,  F15B21/044

    摘要： A circuit for a hydraulic pump is provided. The circuit includes a supply of fluid. A pumping element is operable to increase the pressure of fluid received from the supply of fluid and to generate a flow of pressurized fluid. An inlet passageway connects the pumping element with the supply of fluid. A drain passageway is connected to the inlet passageway. A valve is disposed in the drain passageway. The valve is moveable between a first position where the valve prevents a flow of fluid relative to the drain passageway and a second position where the valve allows a flow of fluid relative to the drain passageway.

    摘要翻译： 提供了一种用于液压泵的回路。 该电路包括一个流体供应。 泵送元件可操作以增加从流体供应接收的流体的压力并产生加压流体流。 入口通道将泵送元件与流体供应相连接。 排水通道连接到入口通道。 阀设置在排水通道中。 阀可以在第一位置和第二位置之间移动，第一位置与阀之间允许流体相对于排放通道流动。

    Pump apparatus for hydraulically powered fuel injection systems
    6.
    发明授权
    Pump apparatus for hydraulically powered fuel injection systems 失效

    公开(公告)号：US06364631B1

    公开(公告)日：2002-04-02

    申请号：US09388109

    申请日：1999-09-01

    申请人： James R. Blass ,  Dennis H. Gibson ,  Mark F. Sommars ,  Eric S. Keyster

    发明人： James R. Blass ,  Dennis H. Gibson ,  Mark F. Sommars ,  Eric S. Keyster

    IPC分类号： F04B1700

    CPC分类号： F02M63/0225 ,  F02M39/02 ,  F02M55/00 ,  F02M57/025 ,  F02M59/105 ,  F02M63/00 ,  F04B1/141 ,  F04B17/05

    摘要： A pumping system for supplying high pressure actuation fluid to individual fuel injectors of an engine equipped with a hydraulically-actuated fuel injection system wherein the three major elements of the system, namely, the pump, the rail pressure control valve and the bleed-off sump or reservoir are physically separated and spaced from one another. The pump is annular, having a central opening through which the engine crankshaft passes. The crankshaft and pump wobble plate are rotationally coupled by opposing flats on each. The pump, rail pressure control valve and reservoir are mounted directly to the engine, receiving and discharging fluid through internal engine passageways, thereby eliminating the usual tubing, and fittings. The pump itself is compact and relatively short in the axial direction, leaving space for mounting such things as a cylindrical housing having belt grooves in its outer surface and a viscous damper on the crankshaft between the pump and the terminal crankshaft end.

    Positive displacement pump having levitating magnetic piston spring circuit
    7.
    发明授权
    Positive displacement pump having levitating magnetic piston spring circuit 失效
    正排量泵具有悬浮磁性活塞弹簧回路

    公开(公告)号：US5784948A

    公开(公告)日：1998-07-28

    申请号：US912743

    申请日：1997-08-18

    申请人： Brian M. Chrestoff ,  Robert H. Ash, Jr.

    发明人： Brian M. Chrestoff ,  Robert H. Ash, Jr.

    IPC分类号： F04B1/12 ,  F04B1/14 ,  F01B13/04

    CPC分类号： F04B1/126 ,  F04B1/141

    摘要： A positive displacement pump including a plurality of pistons reciprocally driven in respective cylinders by a swashplate assembly to expel fluid during the pressure stroke of the piston from a chamber in communication with each piston. Oppositely disposed magnets are located respectively in an upper pressure face of each piston and in a check valve housing adjacent each cylinder to produce a magnetic force circuit accelerating movement of each piston toward and in continual contact with a cluster bearing associated with the swashplate assembly during the suction stroke of each piston. Like poles of each magnet face each other to produce a permanent levitating force on each piston.

    摘要翻译： 一种容积式泵，其包括多个活塞，其通过斜盘组件在各个气缸中往复驱动，以在活塞的压力冲程期间从与每个活塞连通的室排出流体。 相对设置的磁体分别位于每个活塞的上压力面和邻近每个气缸的止回阀壳体中，以产生磁力回路，以加速每个活塞在与该斜盘组件相关联的集群轴承的持续接触期间的运动 每个活塞的吸入冲程。 类似于每个磁体的磁极彼此面对以在每个活塞上产生永久的悬浮力。

    SHAFT-DISTRIBUTED DOUBLE-ACTING ROLLER PISTON PUMP
    8.
    发明公开
    SHAFT-DISTRIBUTED DOUBLE-ACTING ROLLER PISTON PUMP 审中-公开

    公开(公告)号：US20230184233A1

    公开(公告)日：2023-06-15

    申请号：US17964558

    申请日：2022-10-12

    申请人： ZHEJIANG UNIVERSITY OF TECHNOLOGY

    发明人： Jian RUAN ,  Chenchen ZHANG ,  Chengwei TONG ,  Bin MENG ,  Ke ZHU ,  Chuantan RUAN

    IPC分类号： F04B1/141

    CPC分类号： F04B1/141

    摘要： A shaft-distributed double-acting roller piston pump includes a front end cover, a pump casing, a rear end cover and a pump core assembly. The pump core assembly includes a guide rail assembly including left and right guide rails arranged back to back. The side surfaces of the left and right guide rails away from each other are space cam curved surfaces. A flow distribution shaft is installed in the center of the guide rail assembly. A cylinder assembly is installed on both sides of the guide rail assembly including left and right cylinders, between which a piston assembly is arranged. The piston assembly forms left and right closed cavities with the left and right cylinders respectively. The piston assembly performs axial reciprocating linear motion under the constraint of the cylinder assembly and the guide rail assembly, and the volumes of the left and right closed cavities change continuously.

    HYDRAULIC AXIAL PISTON PUMP ABLE TO OPERATE IN BOTH DIRECTIONS
    10.
    发明申请
    HYDRAULIC AXIAL PISTON PUMP ABLE TO OPERATE IN BOTH DIRECTIONS 审中-公开
    液压轴向活塞泵可在两个方向进行操作

    公开(公告)号：US20130336815A1

    公开(公告)日：2013-12-19

    申请号：US13905962

    申请日：2013-05-30

    申请人： HYDRO LEDUC

    发明人： Louis-Claude POREL

    IPC分类号： F04B9/04

    CPC分类号： F04B9/04 ,  F04B1/141 ,  F04B1/16 ,  F04B7/0057

    摘要： A hydraulic pump rotates in both directions of rotation, and includes a casing, a common drive shaft mounted so as to be able to rotate relative to the casing, two swashplates borne by the common drive shaft, these two swashplates being symmetric and opposite each other and each including one supply crescent, a respective hollow piston pressing against each swashplate via the intermediary of a slipper shoe and designed to slide in a respective cylinder connected to the casing, the crescent of the swashplate being in each case arranged so as to pass over the hollow piston during a suction phase of the hollow piston, each cylinder being fitted with a check valve on the discharge side, such that only one of the two swashplates provides an output when the drive shaft rotates in one direction, the other swashplate providing an output when the shaft rotates in the other direction.

    摘要翻译： 液压泵在两个旋转方向上旋转，并且包括壳体，安装成能够相对于壳体旋转的公共驱动轴，由公共驱动轴承载的两个斜盘，这两个旋转盘彼此对称和相对 并且每个包括一个供应新月形，相应的中空活塞经由拖鞋滑动抵靠每个斜盘，并设计成在连接到壳体的相应气缸中滑动，斜盘的月牙在每种情况下布置成经过 中空活塞在空心活塞的抽吸阶段期间，每个气缸在排出侧装配有止回阀，使得当驱动轴沿一个方向旋转时，两个斜盘中只有一个提供输出，另一个斜盘提供一个 当轴沿另一个方向旋转时输出。