Sliding support for a superconducting generator rotor

Details Sliding support for a superconducting generator rotor Sliding support for a superconducting generator rotor

1976-10-15

1978-05-30

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310197, 64 30A, 192 82T, H02K 900

Patent

active

040925552

ABSTRACT:
In a superconducting generator rotor, inner and outer rotor structures are rigidly connected against torsional and axial relative movement at one end of the rotor. At the opposite end of the rotor a sliding support permits relative axial movement of the inner rotor relative to the outer rotor during cool down. The sliding support connection of the inner rotor to the rotating outer rotor and stub shaft of the generator power train is closed by a flexible diaphragm which has protruding axially therefrom a plurality of integrally attached fingers. These fingers, at an outside radial surface, bear into a complementary cylindrical cavity in the end of the stub shaft having female spline receiving concavities. During thermal axial excursion incident to cool down, the fingers by sliding into and out of the spline concavities in the stub shaft accommodate relative axial movement of the inner rotor relative to the outer rotor. During on-line operation of the rotor, the fingers maintain a positive and nonsliding fit with the stub shaft so that by positive outward pressure at the fingers, slip and fretting corrosion of the fingers and stub shaft is prevented.

REFERENCES:
patent: 244091 (1881-06-01), Tenny
patent: 2832908 (1958-04-01), Abbot
patent: 3024630 (1962-03-01), Billups
patent: 3184024 (1965-05-01), Aschauer
patent: 3217849 (1965-11-01), Weir
patent: 3919571 (1975-11-01), Ross
patent: 3942053 (1976-03-01), Abolins
patent: 4017755 (1977-04-01), Litz

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