COOLING DEVICE OF V-BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION

PROBLEM TO BE SOLVED: To provide a cooling device for a V-belt type continuously variable transmission having an enhanced cooling efficiency. SOLUTION: The continuously variable transmission 67 has a primary pulley 51 and a secondary pulley 61, and a V-belt 66 is set over between these pulleys. The transmission 67 is accommodated in an accommodation chamber 70 of a transmission case 25, and the transmission case 25 is furnished with a cooling wind introducing duct 71 and a cooling wind exhaust duct 72. The primary pulley 51 is furnished with a centrifugal fan 73 to produce the cooling wind, and the centrifugal fan 73 is furnished with a partitioning plate 77 to partition a cooling wind intake hole 71a in the cooling wind introducing duct 71 from a blowout part 75b of the centrifugal fan 73. The partitioning plate 77 has a greater outside diameter than the centrifugal fan 73 to prevent the cooling wind from reversely flowing into the cooling wind introducing duct 71. COPYRIGHT: (C)2011,JPO&INPIT