Rotor of a cryogenic dynamoelectric machine

Details Rotor of a cryogenic dynamoelectric machine Rotor of a cryogenic dynamoelectric machine

1988-05-06

1989-10-24

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310214, 310261, H02K 920, H02K 120

Patent

active

048764698

ABSTRACT:
A rotor of a cryogenic dynamoelectric machine comprises a supporting structure with radial slots therein separated by teeth. Coils of a superconducting field winding are placed in the slots and pressed by wedges fitted into axial grooves made in side walls of the slots. An annular shroud embraces the supporting structure. The outer surface of each wedge, facing the shroud, projects beyond the surfaces of the teeth arranged adjacent to the wedge, which also face the shroud. The shroud is provided with a radial interference fit with the outer surfaces of the wedges, with a first radial clearance formed between the shroud and the teeth. Provided between the surface of each wedge, facing the rotor axis and the opposite surfaces of the axial grooves, is a second radial clearance. The magnitude of each of the two clearances is no less than that of the interference fit of the shroud with the outer surfaces of the wedges.

REFERENCES:
patent: 3891875 (1975-06-01), Laskaris
patent: 3991333 (1976-11-01), Laskaris
patent: 4013908 (1977-03-01), Weghaupt
patent: 4184089 (1980-01-01), Sterrett et al.
patent: 4315172 (1982-02-01), Intichar et al.

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