Two-speed transfer case with ballramp clutch actuator

Details Two-speed transfer case with ballramp clutch actuator Two-speed transfer case with ballramp clutch actuator

B - Operations, Transporting

60

K

B60K 17/34 (2006.01)

Patent

CA 2618733

A transfer case is provided with a range unit, an interaxle differential, a clutch assembly and a power-operated actuation mechanism. The range unit includes a planetary gearset driven by an input shaft, and a synchronized dog clutch assembly for releasably coupling one of the input shaft or an output component of the planetary gearset to an input member of the interaxle differential. The interaxle differential further includes a first output member driving a first output shaft, a second output member operably driving a second output shaft. The clutch assembly is a multi-plate friction clutch operably disposed between the first and second output shafts. The power- operated actuation mechanism includes a range actuator assembly, a clutch actuator assembly and a motor assembly operable to control coordinated actuation of the range actuator assembly and the clutch actuator assembly.

Cette invention concerne une boîte de transfert avec une boîte de vitesse, un différentiel inter-essieux, un ensemble embrayage et un mécanisme d'activation à commande électrique. La boîte de vitesse comprend un train planétaire entraîné par un arbre d'entrée et un ensemble embrayage à crabot assurant le couplage libérable de l'arbre d'entrée ou d'un organe de sortie du train planétaire et d'un organe d'entrée du différentiel inter-essieux. Ce différentiel inter-essieux comprend également un premier et un second éléments de sortie entraînant un premier et un second arbre de sortie, respectivement. L'ensemble embrayage du type à friction multi-plateau est disposé fonctionnel entre le premier et le second arbres de sortie. Le mécanisme d'activation électrique comprend un ensemble actionneur de boîte de vitesse et un ensemble moteur coordonnant l'ensemble actionneur de boîte et l'ensemble activateur d'embrayage.

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