Invention Grant
US08967299B2 Downhole motor 有权
井下电机

  • Patent Title: Downhole motor
  • Patent Title (中): 井下电机
  • Application No.: US12996677
    Application Date: 2009-06-11
  • Publication No.: US08967299B2
    Publication Date: 2015-03-03
  • Inventor: Keith A. Bullin
  • Applicant: Keith A. Bullin
  • Agency: Bushman Werner, P.C.
  • International Application: PCT/US2009/003505 WO 20090611
  • International Announcement: WO2009/151608 WO 20091217
  • Main IPC: E21B4/00
  • IPC: E21B4/00 E21B7/06
Downhole motor
Abstract:
A downhole motor having a motor section, a drive shaft section, and an output shaft section. The output shaft section has a rotatable output shaft with a first end and a second end. A first thrust bearing assembly is located proximal to the first end of the output shaft, and a second thrust bearing assembly is located proximal to the second end of the output shaft. A radial bearing assembly is disposed between the first and second thrust bearing assemblies.
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