V-belt type continuously variable transmission
View Patent ↗Provided is a V-belt type continuously variable transmission constructed such as to accommodate in a transmission case a transmission mechanism including: a drive shaft connected to an engine flywheel and provided with a drive pulley; a driven shaft provided with a driven pulley; and a V-belt wound around between the drive pulley and the driven pulley, the V-belt type continuously variable transmission comprising: an air intake chamber for introducing cooling air to surroundings of the drive shaft; and a flywheel cover for covering at least a periphery of the flywheel located in the air intake chamber.
1. A V-belt type continuously variable transmission constructed such as to accommodate in a transmission case a transmission mechanism including: a drive shaft connected to an engine flywheel and provided with a drive pulley; a driven shaft provided with a driven pulley; and a V-belt wound around between the drive pulley and the driven pulley,
the V-belt type continuously variable transmission comprising:
an air intake chamber for introducing cooling air to surroundings of the drive shaft; and
a flywheel cover for covering at least a periphery of the flywheel located in the air intake chamber.
2. The V-belt type continuously variable transmission according to claim 1 , wherein
gear teeth are formed in the periphery of the flywheel.
3. The V-belt type continuously variable transmission according to claim 1 , comprising
a partition plate for partitioning the transmission case into a transmission chamber for accommodating the transmission mechanism and into the air intake chamber,
wherein the flywheel cover is attached to the partition plate.
4. The V-belt type continuously variable transmission according to claim 3 , further comprising
a fan provided in the drive pulley and supplying into the transmission chamber the cooling air in the surroundings of the drive shaft,
wherein the partition plate is provided with a guide plate for guiding the cooling air supplied by the fan to the surroundings of the driven shaft.
5. The V-belt type continuously variable transmission according to claim 4 , wherein
the cooling air is supplied from approximately entire circumferential directions between the flywheel cover and the partition plate to the surroundings of the drive shaft.
6. The V-belt type continuously variable transmission according to claim 3 , wherein
the partition plate and the flywheel cover are made from resin.