Title:
VARIABLE RELUCTANCE MOTOR
Document Type and Number:
WIPO Patent Application WO2001076047
Kind Code:
A3
Abstract:
A high power, low cost magnetically uncoupled variable reluctance motor that provides increased performance while reducing hysteresis losses, thereby reducing the amount of generated heat that needs to be drawn away from a phase assembly. The motor includes a linear or rotary variable reluctance motor that has at least one phase assembly including a plurality of phase units that are magnetically isolated from each other. At least one phase unit includes at least one module removably positioned between a pair of housing plates. By removably positioning the modules between the housing plates, the number of modules within the phase assembly can be adjusted so that the motor produces a desired power output. In one embodiment, each module has a substantially C-shape that includes a pair of legs, each positioned on one side of a main body portion. An electrically conductive coil is positioned about the main body portion and arranged in a substantially V-shape. A bobbin carries the coil and maintains it in the substantially V-shape. The portion of the V-shaped bobbin having the largest surface area permits the positioned coil to be spread out over a large surface area so that heat is easily and efficiently dissipated. The direction of the magnetic flux in the adjacent phase units is opposite to reduce hysteresis losses in the stator.
Inventors:
JANISIEWICZ STANISLAW WLADYSLA
WEISS DARRIN MICHAEL
ZALESSKI ANDREW
GIESKES KOEN ALEXANDER
WEISS DARRIN MICHAEL
ZALESSKI ANDREW
GIESKES KOEN ALEXANDER
Application Number:
PCT/US2001/010192
Publication Date:
January 30, 2003
Filing Date:
March 30, 2001
Export Citation:
Assignee:
CAPITAL FORMATION INC (US)
International Classes:
H02K16/00; H02K41/03; (IPC1-7): H02K41/03; H02K3/18; H02K16/00
Domestic Patent References:
| WO1994026020A1 | 1994-11-10 |
Foreign References:
| EP0789441A1 | 1997-08-13 | |||
| US5365137A | 1994-11-15 | |||
| EP0961392A2 | 1999-12-01 | |||
| FR1326158A | 1963-05-03 | |||
| CH621442A5 | 1981-01-30 | |||
| US3876676A | 1975-04-08 | |||
| US3707924A | 1973-01-02 | |||
| US4935676A | 1990-06-19 |
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