Rotor construction in an asynchronous electric machine

Details Rotor construction in an asynchronous electric machine Rotor construction in an asynchronous electric machine

1994-06-15

1997-04-29

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310261, H02K 1716, H02K 122

Patent

active

056252439

ABSTRACT:
A rotor in an asynchronous electrical machine used in high speed applications, comprises an electrically conductive conductor surrounding a rotor shaft and located substantially adjacent to a stator of the asynchronous electrical machine, a coating layer made of a ferromagnetic particulate material having an electric conductivity substantially lower than that of the conductor, the coating layer being placed between the rotor shaft and the conductor and a metallic intermediate layer between the coating layer and rotor shaft, the metallic intermediate layer having yield point lower than that of the coating layer and the rotor shaft.

REFERENCES:
patent: 2387073 (1945-10-01), Horlacher
patent: 2996791 (1961-08-01), Hicks
patent: 3191270 (1965-06-01), Martin et al.
patent: 3848331 (1974-11-01), Pavlik et al.
patent: 3974408 (1976-08-01), Fehr et al.
patent: 4255494 (1981-03-01), Reen et al.
patent: 4501984 (1985-02-01), Mishima
patent: 4758758 (1988-07-01), Laing
patent: 5473211 (1995-12-01), Arkkio

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