Cooling structure for multi-shaft, multi-layer electric motor

Details Cooling structure for multi-shaft, multi-layer electric motor Cooling structure for multi-shaft, multi-layer electric motor

2005-03-08

2005-03-08

Le, Dang (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S266000, C310S114000

Reexamination Certificate

active

06864604

ABSTRACT:
A multi-shaft, multi-layer motor includes an inner rotor, an outer rotor surrounding the inner rotor, and a stator disposed coaxially between the inner and outer rotors. The motor further includes an outer member surrounding the outer rotor and defining a first wet chamber between the outer rotor and the outer member; an inner member defining a second wet chamber surrounded by the inner rotor; and an intermediate member defining a dry chamber communicating with an outer air gap between the stator and the outer rotor, and an inner air gap between the stator and the inner rotor.

REFERENCES:
patent: 2330121 (1943-09-01), Heintz
patent: 3308318 (1967-03-01), Dunaiski et al.
patent: 4577127 (1986-03-01), Ferree et al.
patent: 5019733 (1991-05-01), Kano et al.
patent: 6049152 (2000-04-01), Nakano
patent: 6114784 (2000-09-01), Nakano
patent: 0 688 090 (1995-12-01), None
patent: 1 164 688 (2001-12-01), None
patent: 2000-14086 (2000-01-01), None

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