Differential gear

Details Differential gear Differential gear

1987-05-26

1989-03-21

Marmor, Charles A.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

180248, B60K 1716, F16H 3706

Patent

active

048132977

ABSTRACT:
A differential gear includes a rotatable case, pinions rotatably disposed in the case, a pair of side gears meshing with the pinions and disposed in the case, a first shaft supported rotatably about a rotary axis of the case and extending from one of side gears, a second shaft supported rotatably about the axis and extending from the other side gear in the opposite direction to the first shaft, a first driven gear provided in one of the first and second shafts, a first drive gear for rotating the driven gear to transmit driving force to the first and second shafts. A worm wheel fixed to the case, a worm meshing with the worm wheel and an electric motor are provided. The motor is controlled by a control device so as to maintain the difference between numbers of revolutions of the first and second shafts within a predetermined range.

REFERENCES:
patent: 4633735 (1987-01-01), Sakurai et al.

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