Differential apparatus

Details Differential apparatus Differential apparatus

1995-05-25

1997-05-27

Marmor, Charles A.

Planetary gear transmission systems or components

Differential planetary gearing

Spur gear differential

475252, F16H 4806

Patent

active

056327048

ABSTRACT:
A differential apparatus comprises a differential casing, a pair of helical side gears, and at least one pair of long and short helical pinion gears. The long helical pinion gear includes first and second gear portions and the short helical pinion gear includes first and second gear portions. The apparatus may include gear coupling portions for coupling the first and second gear portions of the long and short helical pinion gears via a long gear shaft or a short gear shaft, respectively. Since the first and second gear portions of the long or short helical pinion gear can be coupled to the long or short gear shaft by use of the common coupling portions, it is possible to obtain a larger or smaller differential limiting force by exchanging the helix angle relationship (thrust directions) of the two helical pinion gears. Further, when the first and second gear portions of the long or short helical pinion gear are coupled to be axially movable, it is possible to obtain an intermediate, differential limiting force.

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