Four-wheel drive vehicle transmission system

Motor vehicles – Having four wheels driven – With differential means for driving two wheel sets at...

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Details

74705, 74710, 180233, B60K 17344

Patent

active

045723184

ABSTRACT:
A transmission system especially useful in performance saloon cars includes a simple epicyclic gear (2) between an engine (1) and a standard gearbox (MG or AG). The drive to the front axle (10) is taken from the sun gear (12). The drive to the rear axle (20) is via the gearbox from the annulus (16). The torque splits in the optimum ratio between front and rear axles for the gear selected. In first gear and top gear the front:rear torque ratios are 1:3 and 3:2 respectively.

REFERENCES:
patent: 4018317 (1977-04-01), Lemon
patent: 4103753 (1978-08-01), Holdeman
patent: 4344335 (1982-08-01), Kawai
patent: 4402237 (1983-09-01), Tomlinson
patent: 4415058 (1983-11-01), Suzuki
patent: 4441575 (1984-04-01), Suzuki
patent: 4458557 (1984-07-01), Hayakawa

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