System and method for retaining wedges in a rotor

Details System and method for retaining wedges in a rotor System and method for retaining wedges in a rotor

2005-12-27

2005-12-27

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S261100, C310S262000, C310S194000

Reexamination Certificate

active

06979929

ABSTRACT:
A rotor with wedges and a method of retaining wedges in a rotor are disclosed. The rotor includes a shaft, first and second poles extending radially from the shaft, and first and second coils of windings respectively wrapped around the first and second poles. Each coil includes a respective outer face including two end portions and two side portions, and a respective inward-facing edge including two end sections and two side sections. The rotor further includes a first outer wedge positioned between neighboring side portions of the first and second coils, and a first inner wedge positioned between neighboring side sections of the first and second coils. The first inner wedge is coupled to the first outer wedge so that the first outer wedge is at least partly retained from moving radially outward away from the shaft.

REFERENCES:
patent: 1067782 (1913-07-01), Field
patent: 4990810 (1991-02-01), Newhouse
patent: 5036238 (1991-07-01), Tajima
patent: 6054790 (2000-04-01), Kjeer et al.
patent: 6113024 (2000-09-01), Pittard et al.
patent: 2004/0263019 (2004-12-01), Buchan et al.

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