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    Electrohydraulic pump load control system
    2.
    发明公开
    Electrohydraulic pump load control system 失效
    Pumpe的Laststeuerungssystemfüreine elektrohydraulische Pumpe。

    公开(公告)号：EP0599599A1

    公开(公告)日：1994-06-01

    申请号：EP93309324.7

    申请日：1993-11-23

    Applicant: VICKERS INCORPORATED

    Inventor： Niemiec, Albin J. ,  Bloomquist, James V.

    IPC: G05D16/20 ,  F04B49/02 ,  F04D13/16 ,  F04D29/58 ,  B60T13/14

    CPC classification number: F04B11/0008 ,  F04B49/02 ,  F04B2205/063

    Abstract: An electrohydraulic pump load control system that includes a fluid-cooled integrated electric motor/hydraulic pump (12,14) for delivering fluid under pressure to an accumulator (20) that stabilizes pump output pressure while accommodating changes in fluid flow. A pressure sensor (22) is coupled to the accumulator (20) to provide an electrical signal as a function of fluid pressure at the accumulator. An electronic controller (28) applies electrical power to the pump motor (12,14) and is responsive to the electrical signal from the pressure sensor (22) for terminating application of electrical power to the pump motor when pressure at the accumulator (20) reaches the desired threshold. The electronic motor controller (28) controls both application and termination of electrical power to the motor (14) to energize and de-energize the motor at predetermined rates responsive to pressure differential thresholds at the pressure sensor (22).

    Abstract translation: 一种电动液压泵负载控制系统，其包括流体冷却的集成电动机/液压泵（12,14），用于将压力下的流体输送到蓄能器（20），所述蓄能器在容纳流体流动的变化的同时稳定泵的输出压力。 压力传感器（22）联接到蓄能器（20）以提供作为蓄能器处的流体压力的函数的电信号。 电子控制器（28）向泵电动机（12,14）施加电力，并且响应于来自压力传感器（22）的电信号，用于在蓄能器（20）处的压力下终止对泵电动机的施加电力， 达到所需的阈值。 电动机控制器（28）控制电动机（14）的电力的施加和终止，以响应于压力传感器（22）处的压差阈值以预定速率向电动机通电和断电。

    Power transmission
    3.
    发明公开
    Power transmission 失效
    Kraftübertragung。

    公开(公告)号：EP0574623A1

    公开(公告)日：1993-12-22

    申请号：EP92305467.0

    申请日：1992-06-15

    Applicant: VICKERS INCORPORATED

    Inventor： Bloomquist, James V. ,  Niemiec, Albin J.

    IPC: F04B49/06

    CPC classification number: B29C45/82 ,  F04B49/06 ,  F04B49/065 ,  F04B2201/0403 ,  F04B2201/0805 ,  F04B2201/12051 ,  F04B2203/0201 ,  F04B2205/05 ,  H02K17/30

    Abstract: An electric-motor hydraulic pump (10) includes a housing (12) having a stationary internal shaft (14). A pair of cylinder blocks (16,18) are rotatably carried by the shaft (14) within the housing (12), and an array of pistons (22) are slidably disposed with each cylinder block. A yoke plate (20) is mounted within the housing (12) and engages the pistons (22) for determining displacement of the pistons within the cylinder blocks (16,18). Fluid inlet and outlet ports (28) are provided in the housing (12) and are coupled to the cylinder blocks (16,18). An induction motor (30,32) includes a rotor (34) carried by the cylinder block (16,18) for corotation therewith, and a stator (36) mounted within the housing (12) surrounding the rotor. An electronic controller for controlling outlet fluid pressure and flow from the pump (10) includes a plurality of sensors (46,56,58,60) mounted on the housing (12) for sensing operating characteristics of the pump and motor to provide electronic sensor signals as functions thereof. Control electronics (96) are responsive to the sensor signals for controlling fluid pressure and flow from the pump by varying effective displacement of the pump, and by varying the electrical power (current and frequency) applied to the motor.

    Abstract translation: 电动机液压泵（10）包括具有固定内轴（14）的壳体（12）。 一对气缸体（16,18）由壳体（12）内的轴（14）可旋转地支承，并且每个气缸体可滑动地设置有一排活塞（22）。 轭板（20）安装在壳体（12）内并接合活塞（22），以确定活塞在气缸体（16,18）内的位移。 流体入口和出口（28）设置在壳体（12）中并联接到气缸体（16,18）。 感应电动机（30,32）包括由气缸体（16,18）承载以与其共旋转的转子（34）和安装在围绕转子的壳体（12）内的定子（36）。 用于控制出口流体压力和来自泵（10）的流动的电子控制器包括安装在壳体（12）上的多个传感器（46,56,58,60），用于感测泵和马达的操作特性以提供电子传感器 信号作为其功能。 控制电子设备（96）响应于传感器信号，通过改变泵的有效位移以及通过改变施加到电机的电功率（电流和频率）来控制流体压力和来自泵的流量。

    Electric-motor in-line integrated hydraulic pump
    6.
    发明公开
    Electric-motor in-line integrated hydraulic pump 失效
    Intergrierter Reihenpumpen-Elektromotor。

    公开(公告)号：EP0601751A1

    公开(公告)日：1994-06-15

    申请号：EP93309471.6

    申请日：1993-11-26

    Applicant: VICKERS INCORPORATED

    Inventor： Niemiec, Albin J. ,  Bloomquist, James V. ,  Sargo, William E.

    IPC: F04C11/00

    CPC classification number: F04B1/20 ,  F04B17/03 ,  F04B2203/0204 ,  F04B2203/0209 ,  F04C11/001 ,  F04C11/008 ,  F04C14/08 ,  F04C15/0096 ,  H02K5/12 ,  H02K7/14 ,  H02K9/19

    Abstract: An integrated in-line electric motor/hydraulic pump that includes a pump housing (12) having a pair of end members (14,16) mounted at opposed ends of the housing. An electric motor (20) includes a rotor (22) on a shaft (24) journalled between the end members (14,16) and a stator (30) surrounding the rotor within the housing. A pump inlet (34) opens into the interior of the housing (12). First and second vane pump cartridges (44,46) are integrated into one of the end members (16). Each vane pump cartridge (44,46) includes a rotor (48) coupled to the shaft (24), and a plurality of vanes (50) carried by the rotor to engage a vane cam ring (52) that surrounds the rotor, which defines at least one pumping cavity (54,56) between the cam ring and the rotor. A vane pump inlet passage (82) within the one end member (16) extends between and operatively couples the housing interior to the pumping cavities (54,56) of both the first and second vane pump cartridges (44,46) for feeding fluid from the housing interior to both cartridges in parallel. A vane pump discharge (84) is also carried by the one end member (16) and operatively coupled to both of the pumping cavities (54,56) in parallel.

    Abstract translation: 一种集成的在线电动机/液压泵，其包括具有安装在壳体的相对端处的一对端部构件（14,16）的泵壳体（12）。 电动机（20）包括轴（24）上的转子（22），所述轴（24）轴颈安装在端部构件（14,16）和围绕壳体内的转子的定子（30）之间。 泵入口（34）通向壳体（12）的内部。 第一和第二叶片泵筒（44,46）被集成到一个端部构件（16）中。 每个叶片泵筒（44,46）包括联接到轴（24）的转子（48）和由转子承载的多个叶片（50），以接合围绕转子的叶片凸轮环（52）， 限定了凸轮环和转子之间的至少一个泵送腔（54,56）。 一个端部构件（16）内的叶片泵入口通道（82）在壳体内部之间延伸并且可操作地将壳体内部连接到第一和第二叶片泵筒（44,46）的泵腔（54,56），用于供给流体 从壳体内部到并联的两个盒。 叶片泵排出口（84）也由一端构件（16）承载并且并联地可操作地联接到两个泵送空腔（54,56）。

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