Lubrication of a planetary gearset

Details Lubrication of a planetary gearset Lubrication of a planetary gearset

2011-06-28

2011-06-28

Holmes, Justin (Department: 3655)

Planetary gear transmission systems or components

With lubricaton

C074S468000, C384S473000

Reexamination Certificate

active

07967712

ABSTRACT:
In a planetary gearset and an automatic transmission according to the invention, a pinion shaft on which a pinion gear is rotatably supported includes a bearing portion on which a bearing is attached and a polygonal portion having a polygonal outer periphery. An axial oil passage and radial oil passages that communicate with the axial oil passage are formed in the polygonal portion, and the inlet of each radial oil passage formed in the pinion gear faces the polygonal portion.

REFERENCES:
patent: 1132748 (1915-03-01), Sundh
patent: 3821908 (1974-07-01), Marsch et al.
patent: 6770007 (2004-08-01), Fox
patent: 61-006065 (1986-01-01), None
patent: 2004-270736 (2004-09-01), None
patent: 2004-108452 (2008-04-01), None

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