Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1974-12-05
1976-10-26
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 43, H02K 346
Patent
active
039886255
ABSTRACT:
An arrangement for supporting the head portions of the coils which project beyond the ends of the slots provided in the laminated stator component of a high-output turbo-generator in which the coils are placed includes inner and outer radially spaced rings made from a glass fiber-reinforced thermosetting synthetic resin and between which the cylindric array of the insulated coil heads is secured, and a supporting ring secured to the general housing structure of the generator which surrounds and is spaced radially from the outer coil head securing ring. A ring structure of a rubber-like resilient material, e.g. india rubber is interposed between and contacts corresponding faces of the supporting ring and the outer coil head securing ring for the purpose of compensating for unequal expansion coefficients of the copper conductors of the stator coils and the iron of the laminated stator component. This resilient ring structure which may be in the form of a continuous ring, or sub-divided circumferentially into a cylindric array of uniformly spaced arcuate sections between which non-resilient arcuate sections can be placed, has a trapezoidal profile in cross-section, the two non-parallel faces of the ring being constituted by a radially inner face parallel to the axis of the generator and a radially outer face inclined to the generator axis. The radially inner face is provided with axially spaced, circumferentially extending slots which increase the resiliency of the material in the axial direction.
REFERENCES:
patent: 1007457 (1911-10-01), Lamme
patent: 1329242 (1920-01-01), Hellmund
patent: 2980757 (1961-04-01), Coggeshall
patent: 2989657 (1961-06-01), Sampson
patent: 3089048 (1963-05-01), Bahn
patent: 3320452 (1967-05-01), Fortenbach
patent: 3344297 (1967-09-01), Bishop
patent: 3691416 (1972-09-01), Drexler
Jager Kurt
Kunz Eugen
Vlah Josko
BBC Brown Boveri & Company Limited
Skudy R.
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