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Title:
EFFICIENT HIGH-SPEED ELECTRIC DEVICE USING LOW-LOSS MATERIALS
Document Type and Number:
WIPO Patent Application WO2005022738
Kind Code:
A3
Abstract:
The invention relates generally to an electric device, such as an electric motor, a generator, or a regenerative motor, having a wound stator core (20) made from advanced low-loss material. In preferred embodiments, the electric device (23) is an axial airgap-type configuration. The invention provides an electric device (23) having a high pole count that operates at high commutating frequencies, with high efficiency and high power density. Advanced low-loss materials (22) exploited by the present invention include amorphous metals, nanocrystalline metals, and optimized Si-Fe alloys.

Inventors:
HIRZEL ANDREW D
DAY JEFFREY A
SEMONES BURLEY C
JOHNSTON MATHEW R
Application Number:
PCT/US2004/002613
Publication Date:
June 30, 2005
Filing Date:
January 30, 2004
Export Citation:
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Assignee:
LIGHT ENGINEERING INC (US)
International Classes:
H02K1/02; H02K21/24; (IPC1-7): H02K1/12; C22C21/00; C22C38/00; H02K23/60
Foreign References:
US6420813B12002-07-16
US6462456B12002-10-08
US5252877A1993-10-12
US4187441A1980-02-05
Other References:
See also references of EP 1593189A4
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