Electric machine having magnetic bearing means

Details Electric machine having magnetic bearing means Electric machine having magnetic bearing means

1986-07-11

1988-07-05

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 43, H02K 516

Patent

active

047557095

ABSTRACT:
An electric machine comprises a stator 7 and a rotor 17 mounted on a rotor shaft 15. In order to preclude axial vibrations of the rotor shaft the machine is provided with a first magnet 19a incorporated in a thrust block 19 and a second magnet 23 on the rotor shaft. The first and second magnetic means cooperate with each other to urge a bearing portion 15a of the rotor shaft against a bearing surface 19b of the thrust bearing with a predetermined pressure.

REFERENCES:
patent: 2305416 (1942-12-01), Hansen
patent: 3201182 (1965-08-01), Weissman
patent: 3397929 (1968-08-01), Gill et al.
patent: 3476449 (1969-11-01), Chaboseau et al.
patent: 3512851 (1970-05-01), Love
patent: 3598456 (1971-08-01), Love
patent: 3614180 (1971-10-01), Beer
patent: 3874750 (1975-04-01), Greig
patent: 3934950 (1976-01-01), Kuhlmann

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