Rotor lamination assembly for a dynamoelectric machine

Details Rotor lamination assembly for a dynamoelectric machine Rotor lamination assembly for a dynamoelectric machine

1990-01-16

1991-01-22

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310 91, 310261, 403356, 403359, H02K 100

Patent

active

049873300

ABSTRACT:
An improved laminated rotor assembly is disclosed which features a novel key/keyway design that prevents lamination reversal while permitting indexing of successive laminae for the distribution of dimensional variations thereof. There are multiple, symmetrically oriented keyways, each keyway having an identical asymmetrical profile. The symmetrical distribution of identical profile keyways permits indexing of successive laminae, and the asymmetrical keyway profiles prevent lamination reversal. In the preferred embodiment, two or three keyways are employed, each key and keyway being formed in the shape of a step having at least two different radial dimensions.

REFERENCES:
patent: 1816552 (1931-07-01), Trusler
patent: 2783404 (1957-02-01), Appenzeller
patent: 3087080 (1963-04-01), Isaacson
patent: 3882336 (1975-05-01), Boyd
patent: 4585967 (1986-04-01), Mayer
patent: 4614023 (1986-09-01), Sisk
patent: 4682069 (1987-07-01), Stahl
patent: 4777397 (1988-10-01), Parshall
patent: 4833353 (1989-05-01), Hansen
patent: 4841186 (1989-06-01), Feigel

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