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Title:
ELECTRIC MOTOR WITH EXTERNAL ROTOR
Document Type and Number:
WIPO Patent Application WO2001052386
Kind Code:
A3
Abstract:
An electric motor (10) comprising a shaft (24) to which a stator (20) is fixedly mounted and a rotor (22) is rotatably mounted. The shaft (24) defines a longitudinal axis having opposing ends that are adapted to be fixedly mounted to a structural support. The stator (20) preferably comprises multiple windings (56) capable of reversible current flow so that the winding polarity may be altered. The rotor comprises multiple magnets (74, 260) that are radially spaced about the periphery of the stator. Each of the magnets has at least one predetermined pole. A controller (12) is coupled to the windings and controls the direction of the current flowing through the windings in such a manner to initiate and control the rotation of the rotor about the stator.

Inventors:
WOLTERS LAURENS (NL)
Application Number:
PCT/US2001/001278
Publication Date:
March 28, 2002
Filing Date:
January 12, 2001
Export Citation:
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Assignee:
MOL BELTING CO (US)
WOLTERS LAURENS (NL)
International Classes:
H02K1/16; H02K1/14; H02K1/18; H02K1/27; H02K7/10; H02K16/00; H02K21/22; H02K5/10; H02K5/173; (IPC1-7): H02K1/18; H02K1/27; H02K21/22; H02K16/04; H02K7/10
Domestic Patent References:
WO1999065134A11999-12-16
Foreign References:
US5918728A1999-07-06
FR2650712A11991-02-08
US4665333A1987-05-12
DE2346386A11974-03-21
US4987330A1991-01-22
US4682069A1987-07-21
US5057733A1991-10-15
Other References:
PATENT ABSTRACTS OF JAPAN vol. 016, no. 459 (E - 1268) 24 September 1992 (1992-09-24)
PATENT ABSTRACTS OF JAPAN vol. 010, no. 279 (E - 439) 20 September 1986 (1986-09-20)
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