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Patent Searching and Data


Title:
LINE START PERMANENT MAGNET MOTOR USING A HYBRID ROTOR
Document Type and Number:
WIPO Patent Application WO/2015/071469
Kind Code:
A3
Abstract:
A rotor system for a downhole motor comprises a set of permanent magnets, a set of conductors and a pair of end conductor rings connecting the set of conductors. The set of permanent magnets and the set of conductors being substantially coaxial and having the substantially the same linear extent. The set of permanent magnets can be located radially inwards from the set of conductors, and may be provided by discrete conductive bars

Inventors:
HEAD, Philip (14 The Orchard, Virginia Water Surrey GU25 4DT, GB)
Application Number:
EP2014/074806
Publication Date:
July 30, 2015
Filing Date:
November 17, 2014
Export Citation:
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Assignee:
CORETEQ SYSTEMS LTD (1 Hartdene House, Bridge Road, Bagshot Surrey GU19 5AT, GB)
International Classes:
H02K1/27; H02K5/132; H02K17/16; H02K21/46; H02K7/00
Foreign References:
CN101873043A2010-10-27
JPH0522916A1993-01-29
JPS57186966A1982-11-17
US20090184598A12009-07-23
GB2438493A2007-11-28
US2240569A1941-05-06
US1469304A1923-10-02
Attorney, Agent or Firm:
HARMAN, Paul (37 Upper Park Road, Camberley Surrey GU15 2EG, GB)
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