Apparatus for feeding a fluid medium acting as an electrolyte, e

Details Apparatus for feeding a fluid medium acting as an electrolyte, e Apparatus for feeding a fluid medium acting as an electrolyte, e

1991-11-08

1992-12-29

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310 87, 310242, 310246, 4174237, H02K 1300

Patent

active

051754649

ABSTRACT:
The apparatus for feeding an electrolyte fluid medium includes a housing and, mounted in the housing, an electric drive motor and a pump driven by it. The electric drive motor has a commutator device connectable electrically to a conductor supplying current to it. The commutator device includes a commutator attached to the armature spindle of the drive motor, at least two contacting brushes engaged with contacting surfaces of the commutator and prestressed spring devices for holding the brushes against the commutator. To meet the operating requirements and combat the erosion, the prestressed spring devices are leaf springs (42,44). One end (46) of each leaf spring is held fast against the housing and the other end (72) supports one of the contacting brushes (38,40). Each contacting brush (38,40) has a protruding portion (50) engaging in a throughgoing opening (52) of a leaf spring (42,44). The regions of the leaf springs contacting by the flowing fluid medium during operation including an electrical connecting point (64) to a conductor (30) supplying current and also transition regions between the leaf springs and the contacting brushes are coated with a coating material resistant to the electrolyte fluid medium during operation.

REFERENCES:
patent: 1277394 (1918-09-01), Dean
patent: 1802957 (1931-04-01), Ragsdale
patent: 3234420 (1966-02-01), Linder
patent: 3936243 (1976-02-01), Gakenholz
patent: 4157483 (1979-06-01), Frimley
patent: 4586877 (1986-05-01), Watanabe
patent: 4774430 (1988-09-01), Rodriguez
patent: 4843272 (1989-06-01), Mabuchi
patent: 4983872 (1991-01-01), Strobl
patent: 5015895 (1991-05-01), Wong
patent: 5070269 (1991-12-01), Tamaki

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