Laminated dynamoelectric machine rotor having cast conductors an

Details Laminated dynamoelectric machine rotor having cast conductors an Laminated dynamoelectric machine rotor having cast conductors an

1980-06-09

1982-07-27

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 64, H02K 919

Patent

active

043419666

ABSTRACT:
A rotor comprising stacked laminations having conductor slots and axial passageways provided with closed-slot spacer assemblies that are stacked in groups between selected axially spaced rotor laminations to hold said laminations apart while sealing the conductor slots thereby to form radial cooling ducts through the laminations of the selected axially spaced groups and around the closed-slot spacer assemblies. According to the method of the invention, the spacer assemblies are secured in selected operating position by being staked to certain of the main rotor laminations, and a characteristic staking procedure is used to secure individual plates of each of the assemblies together.

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