(19)
(11) EP 1 794 868 A2

(12)

(88) Date of publication A3:
19.04.2007

(43) Date of publication:
13.06.2007 Bulletin 2007/24

(21) Application number: 05780472.6

(22) Date of filing: 02.08.2005
(51) International Patent Classification (IPC): 
H02K 13/14(2006.01)
(86) International application number:
PCT/IB2005/002278
(87) International publication number:
WO 2006/013452 (09.02.2006 Gazette 2006/06)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30) Priority: 02.08.2004 GB 0417188
17.12.2004 GB 0427645
10.02.2005 GB 0502657
04.07.2005 GB 0513588

(71) Applicant: Dolphin Electric Holdings Inc.
20th Floor, Golden Centre 188 Des Coeux Road, Central Hong Kong (CN)

(72) Inventors:
  • SHAW, Thomas, Mahon
    London SW9 0AR (GB)
  • MULDOWNEY-COLSTON, Tony
    London NW3 7EE (GB)
  • BREMNER, Jonathan, James
    West Sussex BN43 6NN (GB)
  • TOMPKINS, David, John
    London NW3 7EE (GB)
  • ABU SHARKH, Suleiman
    Highfield, Southampton S017 1BJ (GB)

(74) Representative: Jenkins, Richard Gavin et al
Marks & Clerk 43 Park Place
Leeds LS1 2RY
Leeds LS1 2RY (GB)

   


(54) COMMUTATOR AND METHOD OF COMMUTATING CURRENT IN A ROTATING ELECTRICAL MACHINE