Rotor with permanent magnets having thermal expansion gaps

Details Rotor with permanent magnets having thermal expansion gaps Rotor with permanent magnets having thermal expansion gaps

1986-06-02

1987-07-07

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

29598, 310 65, 310261, H02K 2114, H02K 118

Patent

active

046789545

ABSTRACT:
A pair of positioning rings are engaged on the outer peripheral surface of a shaft, and a plurality of permanent magnets are provided on the outer surface of the shaft between the positioning rings. The permanent magnets are bonded to the shaft by a bonding agent which fills the spaces between the shaft and the permanent magnets, and an air gap is formed between the permanent magnets and the positioning rings, to allow thermal expansion.

REFERENCES:
patent: 4433261 (1984-02-01), Nashiki et al.
patent: 4464596 (1984-08-01), Miller et al.

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