Motor cooling circuit

Details Motor cooling circuit Motor cooling circuit

1996-12-19

1999-03-30

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 52, 310 58, 310 59, 310 60A, 310156, 310261, 310268, H02K 900

Patent

active

058893423

ABSTRACT:
A cooling circuit for a motor which includes a rotor having a rotor shaft, and a core fitted on the rotor shaft and carrying a plurality of permanent magnets arranged on its outer circumference. A stator is arranged radially outward of the rotor. The motor cooling circuit includes axially extending oil passages formed in the rotor core radially inward of the permanent magnets.

REFERENCES:
patent: 4435662 (1984-03-01), Tawse
patent: 4644202 (1987-02-01), Kroy et al.
patent: 5019733 (1991-05-01), Kano et al.
patent: 5034638 (1991-07-01), McCabria
patent: 5181837 (1993-01-01), Niemiec
patent: 5219277 (1993-06-01), Tuckey
patent: 5283488 (1994-02-01), Ponnappan et al.
patent: 5372213 (1994-12-01), Hasebe et al.

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