Liquid-cooled rotor for dynamoelectric machines

Details Liquid-cooled rotor for dynamoelectric machines Liquid-cooled rotor for dynamoelectric machines

1974-06-25

1976-02-17

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 43, H02K 900

Patent

active

039393682

ABSTRACT:
A liquid-cooled rotor is provided for large dynamoelectric machines, such as turbine generators, in which a coolant liquid such as water is supplied through a shaft bore and radial passages to an annular distribution chamber on the surface of the rotor. Water flows from the chamber to the rotor winding, and back to the chamber, through insulating hoses which are distributed about the circumference of the chamber, and coolant tubes are connected to the insulating hoses to carry the liquid to and from the rotor winding. The tubes are brought together in groups in a transition region from which they extend into slots in the surface of the rotor. The tubes are disposed in the transition region so as to minimize the space required and are supported against rotational forces in a manner to facilitate manufacture and repair. For this purpose, they are formed by bending to bring them into groups of the required number of tubes and are held in place on the rotor by masses of resin cast in place and subdivided so that individual groups of tubes can be removed and replaced independently of the other tubes.

REFERENCES:
patent: 3131321 (1964-04-01), Gibbs
patent: 3469125 (1969-09-01), Kranz
patent: 3543062 (1970-11-01), Banchieri
patent: 3718830 (1973-02-01), Philofsky
patent: 3733502 (1973-05-01), Curtis

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