Noise damped dynamo electric machine, especially vehicular type

Details Noise damped dynamo electric machine, especially vehicular type Noise damped dynamo electric machine, especially vehicular type

1986-12-01

1988-03-29

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 62, H02K 524, H02K 900

Patent

active

047346000

ABSTRACT:
In an apparatus for noise reduction and damping in ventilators of electric machines, in particular vehicular alternators, it is proposed that the ventilator support on the rotor shaft be effected by axially staggering inner rubber inlays on both sides and providing adjoining outer spring pressure elements such that the ventilator region is clamped, at least in the axial direction and preferably radially as well with an additional rubber ring. As a result, the transfer of resonant vibrations of the rotor to the ventilator are reliably avoided, and the noise emissions are decisively reduced.

REFERENCES:
patent: 2674897 (1954-04-01), Heinish
patent: 3555317 (1971-01-01), Allan
patent: 4540381 (1985-09-01), Molloy et al.
patent: 4564775 (1986-01-01), Mazzorana

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