Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1976-09-16
1979-01-30
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
165 11, 165105, H02K 132
Patent
active
041374720
ABSTRACT:
The present invention comprises a rotor for an electric motor which rotor is provided with cooling arrangement in the form of a heat pipe extending axially within the rotor. The heat pipe has an evaporating portion within the body of the rotor and a condensing portion extending out with the body of the rotor. Attached to the condensing portion is a shaft extension which is adapted to define a trap for incondensible gases which contaminate the working fluid when in the gaseous state, the trap has a lesser radial dimension than the condensing portion and a pocket is formed in the shaft extension, extending co-axially with the axis of the shaft, and accessible from the exterior of the assembly so as to accommodate a thermal probe to detect the amount of incondensible gas within the trap. When this amount exceeds a predetermined level the rotor is withdrawn from service and the gas removed by an evacuation process.
REFERENCES:
patent: 3746081 (1973-07-01), Corman
patent: 3765480 (1973-10-01), Fries
patent: 3786861 (1974-01-01), Eggers
patent: 3816780 (1974-06-01), Smith
patent: 3828849 (1974-08-01), Corman
patent: 3842596 (1974-10-01), Gray
patent: 3882335 (1975-05-01), Fries
patent: 3914630 (1975-10-01), Lloyd
S.B.W. Engineers Limited
Skudy R.
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