At the time of the low temperature which confronts

摘要

PROBLEM TO BE SOLVED: To provide a belt type continuously variable transmission capable of preventing fuel economy from worsening by reducing stirring resistance of lubrication oil by a belt or a gear of a differential mechanism to prevent oil temperature from rising.;SOLUTION: The belt type continuously variable transmission is equipped with a primary pulley 1, a secondary pulley 2, the differential mechanism 3 and a casing 4 for supporting them. The casing 4 is equipped with an air breather 5 and a strainer 6 for sucking lubrication oil retained at a bottom part of the casing 4 to above the primary pulley and the secondary pulley. In this case, a threshold 7 for parting a space A communicating with the air breather 5 and a space B including the primary pulley 1, the secondary pulley 2 and the differential mechanism 3 is provided in a liquid-tight manner and a lower end part of the threshold 7 is positioned between the bottom of the casing 4 and an oil level α.;COPYRIGHT: (C)2007,JPO&INPIT