B - Operations – Transporting – 60 – K
Patent
B - Operations, Transporting
60
K
180/31, 74/92
B60K 17/34 (2006.01) B60K 17/344 (2006.01)
Patent
CA 1187005
TITLE OF THE INVENTION "FOUR-WHEEL VEHICLE DRIVE SYSTEM" ABSTRACT OF THE DISCLOSURE 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 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 differen- tial gear assembly selectively with two different gear ratios.
408208
Nissan Motor Co. Ltd.
Swabey Ogilvy Renault
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