Electromechanical machine having shield arrangement for shaft cu

Details Electromechanical machine having shield arrangement for shaft cu Electromechanical machine having shield arrangement for shaft cu

1997-07-10

2000-07-18

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 86, 310 89, 310 90, 310211, 310256, H02K 1730, H02K 515

Patent

active

060911735

ABSTRACT:
An electromechanical machine includes a stator fixed with respect to a housing structure and a rotor fixed with respect to a shaft. The shaft is rotatably supported by a pair of bearing assemblies maintained in the housing structure. A pair of coilheads extend from respective sides of the stator core axially external of the rotor. Shaft shields, preferably configured as tubular members, radially interpose the shaft and the respective coilhead. The shaft shields may be constructed of a magnetically permeable material to divert flux that would otherwise cut through the shaft. As a result, errant currents that could be induced in the shaft by such flux are desirably reduced.

REFERENCES:
patent: 3335308 (1967-08-01), Robinson
patent: 4488077 (1984-12-01), Kovacs
patent: 5097163 (1992-03-01), Shah et al.
patent: 5325005 (1994-06-01), Denk

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