Stator cooling for dynamoelectric machine

Details Stator cooling for dynamoelectric machine Stator cooling for dynamoelectric machine

1987-12-14

1989-01-10

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 57, 310 64, 310260, H02K 900, H02K 346

Patent

active

047975881

ABSTRACT:
Inefficiencies in heat exchange between the end turns 20 of a dynamoelectric machine including a stator 10 and coolant carrying tubing 22 wrapped about the end turns 20 as a result of thermal growth of the end turns 20 may be avoided through the use of a retainer 28 for the tubing 22 and having a coefficient of thermal expansion that is substantially less than the coefficient of thermal expansion of the end turns 20.

REFERENCES:
patent: 2844745 (1958-07-01), Hamm
patent: 3109947 (1963-11-01), Thompson et al.
patent: 4318021 (1982-03-01), Johansson et al.
patent: 4413201 (1983-11-01), Nikitin et al.
patent: 4598223 (1986-07-01), Glennon et al.
patent: 4618795 (1986-10-01), Cooper et al.
patent: 4621212 (1986-11-01), Torossian
patent: 4729160 (1988-03-01), Brown

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