Inter-axle differential assembly

Details Inter-axle differential assembly Inter-axle differential assembly

2007-11-06

2007-11-06

Le, David D. (Department: 3681)

Planetary gear transmission systems or components

Differential planetary gearing

Differential or nondifferential planetary combined with...

C475S198000, C475S200000, C475S201000, C475S231000, C475S243000, C180S249000

Reexamination Certificate

active

10911011

ABSTRACT:
An inter-axle differential assembly includes a forward side gear and a rear side gear that are supported by an input shaft. The forward and rear side gears are in meshing engagement with a plurality of inter-axle differential pinion gears that are supported on a spider. The spider is driven by the input shaft and has a plurality of legs with each leg supporting one of the plurality of inter-axle differential pinion gears. A helical drive gear is fixed for rotation with the forward side gear. The helical drive gear includes a center cavity defined by a spherical inner surface. The spider and the plurality of inter-axle differential pinion gears are positioned within the center cavity. This eliminates the need for an inter-axle differential housing assembly and reduces standout.

REFERENCES:
patent: 3388760 (1968-06-01), Christie
patent: 4050328 (1977-09-01), Romick
patent: 4304317 (1981-12-01), Vanzant et al.
patent: 4381828 (1983-05-01), Lunn et al.
patent: 5718653 (1998-02-01), Showalter
patent: 6001043 (1999-12-01), Yun

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