Patent ID: 9303766
Filing Date: 2016-04-05
CPC Classification: F16J,H02K

Claim Text:
1. A 50DN heavy duty, oil-cooled automotive alternator comprising: (A) a stator having wire windings; (B) a rotor rotatably contained within the stator, the rotor connected to a drive shaft; (C) a housing encapsulating both stator and rotor within an oil environment, the housing terminates in a drive end cover and a rectifier end cover, wiring from the wire windings passes through the rectifier end cover to connect to a bridge rectifier while rotor's drive shaft passes through the drive end cover and supports a spacing collar that passes through an oil seal supported by the drive end cover; wherein the oil seal comprises a top collar, a bottom collar, and an annular polymer sealing member, the bottom collar is nested within the top collar to form a ring-shaped body with the annular polymer sealing member further attaches to the ring-shaped body to form a mating flange having a set of parallel, spaced-apart splines that create a corresponding set of return grooves with parallel sides and organized in a clockwise orientation, the mating flange contacts the spacing collar.