Title:
ELECTRIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2016/078692
Kind Code:
A1
Abstract:
A motor transmission and gearbox for downhole use, comprises, a first motor driving a first input shaft, a second motor driving a second input shaft, a gearbox comprising at least, a ring gear, a sun gear, and, a planetary gear and planetary carrier. The first input shaft drives either the ring gear, the sun gear or the planetary gear and/or planetary carrier, the second input shaft drives one of the gears not driven by the first input shaft, and the remaining gear driving the output shaft.
Inventors:
HEAD PHILIP (GB)
Application Number:
PCT/EP2014/074788
Publication Date:
May 26, 2016
Filing Date:
November 17, 2014
Export Citation:
Assignee:
CORETEQ SYSTEMS LTD (GB)
International Classes:
E21B43/12; F16H3/72; F04B47/06; F16H25/22; F16H37/14
Domestic Patent References:
| WO2010099325A2 | 2010-09-02 |
Foreign References:
| DE19611910A1 | 1997-10-02 | |||
| EP1484532A2 | 2004-12-08 | |||
| US20080080991A1 | 2008-04-03 | |||
| US7541543B2 | 2009-06-02 |
Attorney, Agent or Firm:
HARMAN, Paul (Camberley Surrey GU15 2EG, GB)
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