Switched reluctance motor

Details Switched reluctance motor Switched reluctance motor

1997-09-30

1999-08-31

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 51, 310261, 310254, H02P 602

Patent

active

059457619

ABSTRACT:
The clearance between the stator pole portions and the rotor pole portions at the axial central portion is larger than the clearance therebetween at the axial end portions. According to these characteristics, the magnetic attracting force causing objectionable acoustic noise is increased at the axial end portions of the housing and the stator in which stiffness against the magnetic attracting force is high and decreased at the axial central portion in which their stiffness against the magnetic attracting force is low. Thereby, the objectionable acoustic noise is reduced without changing the motoring torque and increasing the weight of the switched reluctance motor.

REFERENCES:
patent: 3842300 (1974-10-01), Daykin et al.
patent: 3984715 (1976-10-01), Kullmann et al.
patent: 5233254 (1993-08-01), Fisher et al.
Yelne, A. and Heitner, K., "Switched Reluctance Drives for Electric and Hybrid Vehicles," Soc. Automot. Eng., pp. 91-102 (1996).

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