Stator cooling structure for multi-shaft, multi-layer...

Details Stator cooling structure for multi-shaft, multi-layer... Stator cooling structure for multi-shaft, multi-layer...

2005-06-07

2005-06-07

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S057000, C310S113000, C310S114000, C310S216006, C310S256000, C310S266000

Reexamination Certificate

active

06903471

ABSTRACT:
A multi-shaft, multi-layer motor has a stator coaxially disposed between inner and outer rotors which are driven independently by a compound current. For cooling stator coils, first through last branch coolant passages are arranged around the axis. The upstream ends of the first through last branch passages are arranged in sequence circumferentially along a distributing circumferential passage in a direction away from a common introduction port for introducing the coolant into the distributing circumferential passage, and the downstream ends of the first through last branch passages are distributed in sequence circumferentially along a collecting circumferential passage in a direction toward a common discharge port for discharging the coolant from the collecting circumferential passage.

REFERENCES:
patent: 3462626 (1969-08-01), Kluss
patent: 4532447 (1985-07-01), Cibie
patent: 5793136 (1998-08-01), Redzic
patent: 5886433 (1999-03-01), Oda et al.
patent: 5973427 (1999-10-01), Suzuki et al.
patent: 6114784 (2000-09-01), Nakano
patent: 6590312 (2003-07-01), Seguchi et al.
patent: 1 164 688 (2001-12-01), None
patent: 2000-14086 (2000-01-01), None

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