Power transmission device

B - Operations – Transporting – 62 – M

Patent

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Details

B62M 9/06 (2006.01) F16H 9/00 (2006.01)

Patent

CA 2604120

In a power transmission device for transmitting power of an internal combustion engine of a motorcycle, by improving the arrangement of a continuously variable transmission, the arrangement of a balancer shaft and the arrangement of a drive pulley and a driven pulley of the continuously variable transmission, a lateral width and a longitudinal length of a power unit are decreased thus making the power unit in a compact form. Furthermore, the power transmission device makes the motion performance of the motorcycle enhanced. A continuously variable transmission is arranged behind a crankshaft, and a balancer is arranged between the continuously variable transmission and the crankshaft in a state that the balancer does not overlap the continuously variable transmission. A drive force of the crankshaft is transmitted to a drive pulley shaft of the continuously variable transmission by way of a gear of a balancer shaft. A drive pulley and a driven pulley of the continuously variable transmission are arranged vertically. The approximately center of the crankshaft, the balancer and the respective pulleys of the continuously variable transmission are arranged on a vertical plane of a vehicle body center line.

Dans un appareil de transmission d'énergie pour transmettre de l'énergie d'un moteur de combustion interne d'une motocyclette en améliorant l'arrangement d'une transmission variable en continu, l'arrangement d'un volant du vilebrequin et l'arrangement d'une poulie d'entraînement et d'une poulie entraînée de la transmission variable en continu, une largeur latérale et une longueur longitudinale d'une unité d'énergie sont diminués, rendant ainsi l'unité d'énergie dans un format compact. De plus, l'appareil de transmission d'énergie améliore la performance de déplacement de la motocyclette. Une transmission variable en continu est placée derrière un vilebrequin, et un volant du vilebrequin est placé entre la transmission variable en continu et le vilebrequin dans un état où le volant du vilebrequin ne chevauche pas la transmission variable en continu. Une force motrice dans le vilebrequin est transmise à un arbre de la poulie d'entraînement de la transmission variable en continu au moyen d'un engrenage du volant du vilebrequin. Une poulie d'entraînement et une poulie entraînée de la transmission variable en continu sont arrangées verticalement. Le centre approximatif du vilebrequin, du volant de vilebrequin et des poulies respectives de la transmission variable en continu sont arrangés sur un plan vertical de la ligne centrale d'une carrosserie de véhicule.

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