Methods and apparatus for ventilating electric machines

Details Methods and apparatus for ventilating electric machines Methods and apparatus for ventilating electric machines

1990-12-20

1993-05-25

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 59, 310 62, H02K 900, H02K 902, H02K 906

Patent

active

052143252

ABSTRACT:
A rotating electric machine includes a housing having a first inlet at one end for admitting ventilation air for cooling the machine, and a second inlet at the other end which also admits cooling air into the machine. A fan located at one end of the housing draws air into the housing through the first and second inlets, and forces it out of the housing through a single outlet located near one end of the housing. Air entering the second inlet passes through openings in the fan carrier, cooling isolated areas of the rotor, and flowing through the fan blades with the air which enters through the first inlet.

REFERENCES:
patent: 1784102 (1930-12-01), Lincoln et al.
patent: 4409502 (1983-10-01), McCabria
patent: 4562367 (1985-12-01), Kumatani

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