Stator core assembly

Details Stator core assembly Stator core assembly

1991-01-07

1991-11-19

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 53, 310 54, 310 52, H02K 504

Patent

active

050668820

ABSTRACT:
In a stator core assembly composed of a plurality of steel punchings, and a plurality of fastening devices including bolts holding the punchings together in a stack and pressing adjacent punchings against one another, the bolts being of a material having a coefficient of thermal expansion different from that of the steel punchings, the bolts are constituted by hollow tubes and the assembly further includes a temperature control device for introducing a fluid having a selected temperature to the interior of the tubes in order to minimize temperature dependent changes in the compressive force exerted by the fastening devices on the stack.

REFERENCES:
patent: 4810919 (1989-03-01), Ponce et al.
patent: 4896062 (1990-01-01), Pollard

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