Electrical machines

Details Electrical machines Electrical machines

1993-12-06

1997-09-23

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 54, 310 58, 310 57, 310 65, H02K 112, H02K 900, H02K 908, H02K 132

Patent

active

056708386

ABSTRACT:
An electromechanical transducer, such as a motor (1), comprising a rotor member (4), a stator member (3) having an electrical winding (8), and isolating means (11, 9, 16, 12) isolating at least a part (18) of one of the members (3) from the other member (4), and cooling fluid in direct contact with said part (18) and isolated from the other member (4). The stator member (3) is preferably cooled by pumping liquid past it, whilst the rotor member (4) is isolated from the liquid. The rotor member (4) preferably operates in an evacuated chamber (48). A pump (5) is preferably provided to pump the cooling liquid around a cooling circuit (47, 6, 5, 47, 42).

REFERENCES:
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patent: 3609420 (1971-09-01), Inagaki
patent: 3648085 (1972-03-01), Fujii
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patent: 3805547 (1974-04-01), Eber
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patent: 4709180 (1987-11-01), Denk
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patent: 4968911 (1990-11-01), Denk
patent: 5004944 (1991-04-01), Fisher
patent: 5030877 (1991-07-01), Denk
patent: 5347188 (1994-09-01), Iseman et al.

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