Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1981-07-08
1983-05-17
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310239, H02K 510
Patent
active
043842259
ABSTRACT:
A charging generator has two slip rings surrounded by a cylindrical cover provided on the periphery with an axially extending opening, a brush holder including one end portion inserted into the opening and slightly spaced from each edge of the opening and two spring loaded brushes held in the holder to contact slidably the slip rings. The cover includes a protrusion located adjacent to each edge of the opening so as to extend substantially radially outwardly and the brush holder includes two opposite protrusions extending along adjacent portions of the outer cover periphery and toward the adjacent protrusions of the cover to form labyrinths between them. The labyrinths are filled with a grease.
REFERENCES:
patent: 2285970 (1942-06-01), Hempill
patent: 2744206 (1956-05-01), Hansen
patent: 3233130 (1966-02-01), Bates
patent: 3731126 (1973-05-01), Hagenlocher
Goto Hitoshi
Iwaki Yoshiyuki
Mitsubishi Denki & Kabushiki Kaisha
Skudy R.
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