Power divider lubrication in tandem drive axles

Details Power divider lubrication in tandem drive axles Power divider lubrication in tandem drive axles

2007-08-21

2007-08-21

Wright, Dirk (Department: 3681)

Planetary gear transmission systems or components

With lubricaton

For differential planetary gearing

Reexamination Certificate

active

11198997

ABSTRACT:
A drive axle assembly is provided that improves lubrication of the bearing surfaces of the inter-axle differential gears, the side gears meshed with the differential gears, and the input and output shafts. Lubricant splashed from the ring gear is collected and is then distributed by a bearing supporting the output side gear for rotation within the housing for the assembly. The bearing directs lubricant to the differential gears where seals and/or close tolerances retain the lubricant an allow it to flow to the surfaces of the input shaft and the helical side gear disposed about the input shaft. The output side gear disposed about the output shaft may also include a passage allowing lubricant to flow through the gear to the bearing surfaces of the output shaft and output side gear.

REFERENCES:
patent: 2870854 (1959-01-01), Keese
patent: 3383937 (1968-05-01), Toenne et al.
patent: 3532183 (1970-10-01), Shealy
patent: 3771622 (1973-11-01), Hyakumura
patent: 4231266 (1980-11-01), Nishikawa et al.
patent: 4612818 (1986-09-01), Hori et al.
patent: 5404963 (1995-04-01), Crepas et al.

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