公开(公告)号：EP2053246A4

公开(公告)日：2017-09-06

申请号：EP06775289

申请日：2006-08-04

申请人： LIU JUN ,  TANG YONGJIAN ,  CONG HENGLI ,  MILLENNIUM OILFLOW SYSTEMS & TECHNOLOGY INC

发明人： LIU JUN ,  TANG YONGJIAN ,  CONG HENGLI ,  MILLENNIUM OILFLOW SYSTEMS & TECHNOLOGY INC

IPC分类号： F04B49/06 ,  F04C18/16 ,  F04C28/06 ,  H02P3/22

CPC分类号： F04B49/06 ,  F04C18/16 ,  F04C28/06 ,  H02P3/22

公开(公告)号：EP2053245A4

公开(公告)日：2014-12-17

申请号：EP06775288

申请日：2006-08-04

申请人： LIU JUN ,  GOU SONGBO ,  TANG YONGJIAN ,  CONG HENGLI ,  MILLENNIUM OILFLOW SYSTEMS & TECHNOLOGY INC

发明人： LIU JUN ,  GOU SONGBO ,  TANG YONGJIAN ,  CONG HENGLI

IPC分类号： F04B47/02 ,  E21B43/00 ,  F04C14/08 ,  H02P29/00

CPC分类号： H02K7/003 ,  E21B43/121 ,  E21B43/126 ,  F04B47/02 ,  F04C2/1071 ,  F04C14/08 ,  F04C15/008 ,  H02K29/00 ,  H02P6/14 ,  H02P6/16 ,  H02P6/28 ,  H02P25/026 ,  H02P25/03 ,  Y10T74/18576 ,  Y10T74/18664

摘要： A surface motor direct-drive sucker-rod screw pump device is driven by a vertical three-phase permanent magnet brush-less DC motor, and comprises a motor controller (6), a rectifying circuit, an inversion circuit, a CPU and a driving circuit. The motor controller (6) is used to adjust the voltage and frequency of the motor by the rectifying circuit, the inversion circuit, the CPU and the driving circuit. Thus, the speed of the motor can vary from zero to the maximum. The device is easy to operate and has a higher efficiency.

摘要翻译： 表面马达直驱抽油杆螺杆泵装置由立式三相永磁无刷直流马达驱动，包括电机控制器（6），整流电路，反相电路，CPU和驱动 电路。 电机控制器（6）用于通过整流电路，反相电路，CPU和驱动电路来调节电机的电压和频率。 因此，马达的速度可以从零变化到最大。 该设备易于操作，效率更高。

公开(公告)号：EP1666763A4

公开(公告)日：2008-10-22

申请号：EP04787867

申请日：2004-09-10

申请人： SINTOKOGIO LTD ,  ISHIDA YUKIO ,  LIU JUN

发明人： ISHIDA YUKIO ,  LIU JUN ,  UCHIMURA SHOJI ,  MORIMITSU HIDEKI ,  ISHIGURO HIROHIDE

IPC分类号： F16F15/04 ,  F16F15/073

CPC分类号： D06F37/20 ,  B04B9/12 ,  B04B9/14 ,  F16F15/073

摘要： A device for damping runout vibration of a rotating shaft system at least including a rotating shaft and a rotating body rotatably supported by the shaft. A ring (24) is provided outside a bearing (23) fitted on a rotating shaft with a clearance between the ring and an outer ring of the bearing. A vibration damping mechanism includes, in order to suppress runout vibration of a rotating shaft system from the radially outside of the ring (24), a blade spring (25) compressed by a preload and a stopper (26) for setting an operation limit of the blade spring.