Differential gear for a two wheel or four wheel drive vehicle

Details Differential gear for a two wheel or four wheel drive vehicle Differential gear for a two wheel or four wheel drive vehicle

1987-05-26

1989-04-11

Braun, Leslie A.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74711, 180248, F16H 140

Patent

active

048195120

ABSTRACT:
A differential gear includes two rotatable cases, pinions disposed rotatably in each of the cases, first and second side gears meshing with the pinions and disposed rotatably in each of the cases, a first shaft supported rotatably about a co-axis of the cases and extending from the second side gear in the first case to the first side gear in the second case, a second shaft supported rotatably about the co-axis and extending from the first side gear in the first case, a third shaft supported rotatably about the co-axis and extending from the second side gear in the second case, a driven gear provided in the first shaft and a first drive gear for rotating the driven gear to give driving force to the shafts. First and second worm wheels respectively fixed to the first and second cases, first and second worms respectively meshing with the first and second worm wheels and at least one electric motor for rotating the first and second worms are provided. The motor is controlled by a control device so as to maintain the difference between the number of revolutions of the second and third shafts within a predetermined range.

REFERENCES:
patent: 1246155 (1917-11-01), Pillmore
patent: 1519494 (1924-12-01), Kent
patent: 1802545 (1931-04-01), Acker
patent: 1946093 (1934-02-01), Morgan
patent: 2043006 (1936-06-01), Morgan
patent: 2422343 (1947-06-01), Duer
patent: 2780299 (1957-02-01), Matson
patent: 3288232 (1966-11-01), Shepherd
patent: 3874251 (1975-04-01), Lapitsky et al.
patent: 4520690 (1985-06-01), Dangel
patent: 4552241 (1985-11-01), Suzuki
patent: 4669569 (1987-06-01), Suzuki et al.
patent: 4671135 (1987-06-01), Dangel

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