Composite rotor sleeve

Details Composite rotor sleeve Composite rotor sleeve

1990-10-25

1992-06-16

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 43, 310192, 310262, 310271, H02K 919, H02K 1510, H02K 132, H02K 122

Patent

active

051227045

ABSTRACT:
Leakage of a coolant into the air gap (16) of a dynamoelectric machine so as to cause undesirable windage losses may be avoided through the use of a composite rotor sleeve (44) including a continuous film (46) of polyimide material on its radially inner surface and surrounding the machine rotor (22).

REFERENCES:
patent: 3781578 (1973-12-01), Smith, Jr. et al.
patent: 4143290 (1979-03-01), Mizukami et al.
patent: 4146809 (1979-03-01), Rielly
patent: 4152611 (1979-05-01), Madsen
patent: 4251745 (1981-02-01), Germann
patent: 4311932 (1982-01-01), Olson
patent: 4433261 (1984-02-01), Nashiki et al.
patent: 4531071 (1985-07-01), Kintz, Jr. et al.
patent: 4930201 (1990-06-01), Brown
Du Pont, "Technical Information", Feb. 1967, pp. 7-8.

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