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Title:
DIRECT DRIVE GENERATOR FOR RENEWABLE ENERGY APPLICATIONS
Document Type and Number:
WIPO Patent Application WO/2015/075456
Kind Code:
A3
Abstract:
A direct drive rotary generator formed of an elongate cylindrical series of stator annuli and a coaxial elongate cylindrical series of armature annuli and mounted for relative rotational movement around their common axis, the series of stator annuli interleaving the series of armature annuli, and either of the armature/stator annuli having a contiguous or substantially contiguous sequence of coils around its circumference, and the other of the armature/stator annuli having a corresponding sequence of permanent magnets of alternating polarity spaced around its circumference and at the same pitch as that of the coils, the arrangement being such that lines of magnetic flux passing across the air gap between one magnet carrying annulus to the next cut the turns of the coils of the corresponding interleaved coil carrying annulus, and thus induce in the coils electromagnetic forces as the armature is caused to rotate relative to the stator.

Inventors:
KELLY, Hugh-Peter Granville (47 Crowstone Road, Westcliff on Sea, Essex SS0 8BG, GB)
Application Number:
GB2014/053436
Publication Date:
September 11, 2015
Filing Date:
November 20, 2014
Export Citation:
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Assignee:
GREENSPUR RENEWABLES LIMITED (64 Park Drive, Winchmore Hill, London N21 2LS, GB)
International Classes:
H02K21/24; F03D9/00; H02K7/18; H02K1/27; H02K3/04
Foreign References:
FR2639486A11990-05-25
US20120038162A12012-02-16
EP2190107A12010-05-26
US20110121576A12011-05-26
US20110042961A12011-02-24
US5334899A1994-08-02
Attorney, Agent or Firm:
JACKSON, Martin Peter (14 South Square, Gray's InnLondon, Greater London WC1R 5JJ, GB)
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