Dust exhauster for a vacuum cleaner having improved cooling

Details Dust exhauster for a vacuum cleaner having improved cooling Dust exhauster for a vacuum cleaner having improved cooling

1990-08-13

1991-11-26

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 51, 310 60A, 15326, A47L 900

Patent

active

050685554

ABSTRACT:
A dust exhauster is described whose electric motor is designed as a commutatorless dc motor. The electrical and electronic components of the dust exhauster are positioned according to the invention within the motor cooling air intake channel. Consequently, they are directly cooled by the stream of cooling air, resulting in a substantially extended service life for these components. Furthermore, the motor with its components is relatively small in design.

REFERENCES:
patent: 4665581 (1987-05-01), Oberdorfer

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