公开(公告)号：US5778671A

公开(公告)日：1998-07-14

申请号：US712671

申请日：1996-09-13

Applicant: James V. Bloomquist ,  Albin J. Niemiec

Inventor： James V. Bloomquist ,  Albin J. Niemiec

IPC: F15B11/02 ,  F15B21/08 ,  F16H61/40 ,  F16D31/02

CPC classification number: F15B21/087

Abstract: An electrohydraulic control system that includes a bidirectional electric motor responsive to application of electrical power for rotation in either of two directions, and a hydraulic pump coupled to the motor and having ports for supplying hydraulic fluid in either of two flow directions as a function of direction of rotation of the electric motor. A hydraulic actuator is coupled to the pump for receiving fluid in either of two flow directions and performing work as a function thereof. An electronic controller applies electrical power to the electric motor so as to obtain a desired level of work at the actuator. The electronic controller includes one or more sensors operatively coupled to the actuator for applying electrical power to the motor as a function of motion at the actuator. The bidirectional electric motor in the preferred embodiments of the invention comprises a fluid-cooled motor, and the system includes valves for routing hydraulic fluid through the motor housing between the pump and the actuator.

Abstract translation: 一种电动液压控制系统，其包括响应于在两个方向中的任一方向上旋转的电力的双向电动机以及耦合到所述电动机的液压泵，并且具有作为方向的函数的两个流动方向中的任一个中供应液压流体的端口 的电动机的旋转。 液压致动器联接到泵，用于在两个流动方向中的任一个中接收流体并且作为其功能执行工作。 电子控制器向电动机施加电力，以便在致动器处获得期望的工作水平。 电子控制器包括一个或多个可操作地耦合到致动器的传感器，用于根据致动器处的运动来向电动机施加电功率。 在本发明的优选实施例中的双向电动机包括流体冷却的电动机，并且该系统包括用于在泵和致动器之间路由通过电动机壳体的液压流体的阀。

公开(公告)号：US5261796A

公开(公告)日：1993-11-16

申请号：US982729

申请日：1992-11-27

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

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

IPC: F04C2/344 ,  F04B1/20 ,  F04B17/03 ,  F04C11/00 ,  F04C14/08 ,  F04C15/00 ,  H02K5/12 ,  H02K7/14 ,  H02K9/19 ,  F04B39/06

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

Abstract: An integrated in-line electric motor/hydraulic pump that includes a pump housing having a pair of end members mounted at opposed ends of the housing. An electric motor includes a rotor on a shaft journalled between the end members and a stator surrounding the rotor within the housing. A pump inlet opens into the interior of the housing. First and second vane pump cartridges are integrated into one of the end members. Each vane pump cartridge includes a rotor coupled to the shaft, and a plurality of vane carried by the rotor to engage a vane cam ring that surrounds the rotor, which defines at least one pumping cavity between the cam ring and the rotor. A vane pump inlet passage within the one end member extends between and operatively couples the housing interior to the pumping cavities of both the first and second vane pump cartridges for feeding fluid from the housing interior to both cartridges in parallel. A vane pump discharge is also carried by the one end member and operatively coupled to both of the pumping cavities 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的泵壳体。 电动机包括轴上的转子，所述转轴安装在端部构件和围绕壳体内的转子的定子之间。 泵入口通向外壳的内部。 第一和第二叶片泵筒被集成到一个端部构件中。 每个叶片泵筒包括联接到轴的转子和由转子承载的多个叶片，以接合围绕转子的叶片凸轮环，其限定凸轮环和转子之间的至少一个泵送腔。 一个端部构件内的叶片泵入口通道在壳体内部之间延伸并且将壳体内部可操作地连接到第一和第二叶片泵筒的泵送空腔，用于将流体从壳体内部平行地供给到两个筒体。 叶片泵排出物也由一端构件承载并且可操作地并联到两个泵送空腔。

公开(公告)号：US5253982A

公开(公告)日：1993-10-19

申请号：US980242

申请日：1992-11-23

Applicant: Albin J. Niemiec ,  James V. Bloomquist

Inventor： Albin J. Niemiec ,  James V. Bloomquist

IPC: F04B49/06 ,  F04B11/00 ,  F04B49/02 ,  F15B1/02 ,  F04B49/00

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 for delivering fluid under pressure to an accumulator that stabilizes pump output pressure while accommodating changes in fluid flow. A pressure sensor is coupled to the accumulator to provide an electrical signal as a function of fluid pressure at the accumulator. An electronic controller applies electrical power to the pump motor, and is responsive to the electrical signal from the pressure sensor for terminating application of electrical power to the pump motor when pressure at the accumulator reaches the desired threshold. The electronic motor controller controls both application and termination of electrical power to the motor to energize and de-energize the motor at predetermined rates responsive to pressure differential thresholds at the pressure sensor.

公开(公告)号：US5141402A

公开(公告)日：1992-08-25

申请号：US647609

申请日：1991-01-29

Applicant: James V. Bloomquist ,  Albin J. Niemic

Inventor： James V. Bloomquist ,  Albin J. Niemic

IPC: B29C45/82 ,  F04B49/06 ,  H02K17/30

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

Abstract: An electric-motor hydraulic pump includes a housing having a stationary internal shaft. A pair of cylinder blocks are rotatably carried by the shaft within the housing, and an array of pistons are slidably disposed with each cylinder block. A yoke plate is mounted within the housing and engages the pistons for determining displacement of the pistons within the cylinder blocks. Fluid inlet and outlet ports are provided in the housing and are coupled to the cylinder blocks. An induction motor includes a rotor carried by the cylinder block for corotation therewith, and a stator mounted within the housing surrounding the rotor. An electronic controller for controlling outlet fluid pressure and flow from the pump includes a plurality of sensors mounted on the housing for sensing operating characteristics of the pump and motor to provide electronic sensor signals as functions thereof. Control electronics 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: 电动机液压泵包括具有固定内部轴的壳体。 一对气缸体由轴可旋转地支承在壳体内，并且活塞阵列可滑动地布置有每个气缸体。 轭板安装在壳体内并与活塞接合，以确定活塞在气缸体内的位移。 流体入口和出口设置在壳体中并且联接到气缸体。 感应电动机包括由气缸体承载的用于与其共旋转的转子和安装在围绕转子的壳体内的定子。 用于控制出口流体压力和来自泵的流量的电子控制器包括安装在壳体上的多个传感器，用于感测泵和马达的操作特性，以提供作为其功能的电子传感器信号。 控制电子设备响应于传感器信号，通过改变泵的有效位移以及通过改变施加到电动机的电功率（电流和频率）来控制流体压力和来自泵的流量。