Charging generator for motor vehicle
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsYoshiyuki Iwaki, Hitoshi Goto
Life of this patent
Estimating the term…
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.
Claims5
A charging generator for a motor vehicle comprising a slip ring, a cylindrical cover provided on the circumferential surface thereof and having an axially extending opening thereon, and covering an outer periphery of said slip ring, a brush holder for slidably holding a brush therein, said brush holder having one end inserted into said opening and slightly spaced from both side walls of said opening with said brush slidably contacting said slip ring, said cover and said brush holder having on opposed portions thereof protrusions forming therebetween a labyrinth on each side of said brush holder, and a sealing material filling said labyrinth, said sealing material being a sealing material taken from the group consisting of grease, silicone resin and epoxy resin.
Dependencies are inferred from the claim text.