Rotor for an induction motor

Details Rotor for an induction motor Rotor for an induction motor

1997-03-18

1999-01-19

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 61, 310216, 310264, H02K 132, H02K 1900

Patent

active

058617000

ABSTRACT:
A rotor for an induction motor includes a core having a central hole extending axially therethrough for receiving a shaft. A plurality of large spaces are formed in the core radially outside of the center hole. The spaces are filled with a non-ferrous metal, and blowholes extend through the non-ferrous metal for conducting cooling air through the core.

REFERENCES:
patent: 2913607 (1959-11-01), Douglas et al.
patent: 3210584 (1965-10-01), Jorgensen et al.
patent: 3659129 (1972-04-01), Pettersen
patent: 4641051 (1987-02-01), Auinger
patent: 4748360 (1988-05-01), Kawada et al.
patent: 5338996 (1994-08-01), Yamamoto

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