Vertical stator double gas D.C. PM motors

Details Vertical stator double gas D.C. PM motors Vertical stator double gas D.C. PM motors

2006-04-04

2009-10-06

Hanh, Nguyen N (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

07598649

ABSTRACT:
A vertical stator d.c. PM motor employs outer and inner working air gaps wherein the length of the inner working gap at any stator pole is greater than the corresponding length at the outer working gap. A mutual cancellation of detent torque between the outer and inner working gaps is promoted through an offsetting of the rotor magnetic regions.

REFERENCES:
patent: 5783893 (1998-07-01), Dade et al.
patent: 6037696 (2000-03-01), Sromin et al.
patent: 6590312 (2003-07-01), Seguchi et al.
patent: 2004/0041482 (2004-03-01), Petersen

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