Carbon commutator

Details Carbon commutator Carbon commutator

1991-12-13

1992-12-29

Hall, Carl E.

Electrical generator or motor structure

Dynamoelectric

Rotary

29597, H01R 3906

Patent

active

051754630

ABSTRACT:
A fuel pump and the method for making the fuel pump designed for operation in an environment of a hydrocarbon fuel having a significant portion of oxygen-containing moieties are disclosed. The pump consists of a body, a shaft, a commutator, and brushes in contact with the commutator; the method of making the commutator comprises the steps of affixing a formed carbon article to a suitable substrate, machining the article to a commutator, and cutting slots into the commutator. In one embodiment, the method includes forming the carbon article directly on the substrate prior to the machining steps.

REFERENCES:
patent: 1811180 (1931-06-01), Landers
patent: 3538365 (1970-11-01), Reisnecker
patent: 4349384 (1982-09-01), Weinert
patent: 4358319 (1982-11-01), Yoshida et al.
patent: 4396358 (1983-08-01), de Concini
patent: 4399383 (1983-08-01), Kamiyama
patent: 4851728 (1989-07-01), Doege et al.
German Publication No. DE 31 50 505 A1 (English translation), Dec. 21, 1981.

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