Motor vehicles – Having four wheels driven – With manually operated means for disengaging drive to one or...
Patent
1982-07-21
1992-01-28
Staab, Lawrence J.
Motor vehicles
Having four wheels driven
With manually operated means for disengaging drive to one or...
180248, 180250, F16H 3708
Patent
active
050834789
ABSTRACT:
A four-wheel vehicle drive system, comprising an engine having an output shaft in a lateral direction of the vehicle, a power transmission gear unit including transmission input and output shafts having axes of rotation parallel with the engine output shaft, a final reduction gear rotatable about an axis parallel with the transmission input and output shafts, the transmission output shaft being in driving engagement with the final reduction gear, a gear housing rotatable with the final reduction gear, a main transaxle casing having enclosed therein the transmission gear unit, final reduction gear and gear housing, an auxiliary transaxle casing secured to the main transaxle casing, a first wheel drive gear unit to split driving power from the final reduction gear into two components and including a differential gear assembly enclosed in the auxiliary transaxle casing and operative to transmit one of the power components to a pair of road wheels, a second wheel drive gear unit enclosed in the auxiliary transaxle casing and operative to transmit therethrough the other of the two driving power components in a fore-and-aft direction of the vehicle to drive another pair of road wheels, and low-and-high speed shifting means including a shift gear assembly enclosed within the gear housing and operative to transfer driving power from the final reduction gear to the differential gear assembly selectively with two different gear ratios.
REFERENCES:
patent: 2158320 (1939-05-01), Bock
patent: 2400777 (1968-09-01), Hill
patent: 4299140 (1981-11-01), Kaka et al.
patent: 4367661 (1983-01-01), Moroto et al.
patent: 4415058 (1983-11-01), Suzuki
patent: 4417642 (1983-11-01), Suzuki et al.
patent: 4420059 (1983-12-01), Suzuki
patent: 4428452 (1984-01-01), Muraoka
patent: 4431079 (1984-02-01), Suzuki
patent: 4441575 (1984-04-01), Suzuki
patent: 4449604 (1984-05-01), Suzuki
patent: 4457394 (1984-07-01), Suzuki
patent: 4459874 (1984-07-01), Suzuki
patent: 4476953 (1984-10-01), Hiraiwa
Diehl Dwight G.
Nissan Motor Company Limited
Staab Lawrence J.
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