System for shifting a vehicle to two or four-wheel drive

Details System for shifting a vehicle to two or four-wheel drive System for shifting a vehicle to two or four-wheel drive

1983-11-10

1985-12-24

Pekar, John A.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74477, 74665T, 180247, F16H 3706, B60K 1734

Patent

active

045598460

ABSTRACT:
A gear transfer unit for selectively shifting an engine driven vehicle to either a two-wheel or four-wheel drive mode while in motion which unit includes a gear system of constant mesh gears, a synchronizer and means for activating the synchronizer for selective high and low speed coupling of the input drive to the front and rear output shafts of the unit.

REFERENCES:
patent: 822057 (1906-05-01), Krebs
patent: 2385231 (1945-09-01), Peterson et al.
patent: 3752276 (1973-08-01), Hoyle et al.
patent: 3788164 (1974-01-01), Ojima
patent: 4270409 (1981-06-01), Glaze et al.
patent: 4305309 (1981-12-01), Ookubo et al.
patent: 4305490 (1981-12-01), Hendrickson
patent: 4344335 (1982-08-01), Kawai

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