发明授权
- 专利标题： Surface motor direct-drive sucker-rod screw pump device
- 专利标题（中）： 表面电机直驱抽油杆螺杆泵装置
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申请号： US12375951申请日： 2006-08-04
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公开(公告)号： US08702400B2公开(公告)日： 2014-04-22
- 发明人: Jun Liu , Songbo Gou , Yongjian Tang , Hengli Cong
- 申请人： Jun Liu , Songbo Gou , Yongjian Tang , Hengli Cong
- 申请人地址： CA Edmonton, Alberta
- 专利权人： Millennium Oilflow Systems & Technology Inc.
- 当前专利权人： Millennium Oilflow Systems & Technology Inc.
- 当前专利权人地址： CA Edmonton, Alberta
- 代理机构： Kilpatrick Townsend & Stockton LLP
- 国际申请： PCT/CN2006/001967 WO 20060804
- 国际公布： WO2008/017211 WO 20080214
- 主分类号： F16H3/06
- IPC分类号： F16H3/06 ; F16H27/02 ; F16H29/02 ; F16H29/20
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.
公开/授权文献
- US20100098563A1 Surface Motor Direct-Drive Sucker-Rod Screw Pump Device 公开/授权日：2010-04-22
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