COOLING STRUCTURE OF HYDRAULIC CONTINUOUSLY VARIABLE TRANSMISSION

摘要

PROBLEM TO BE SOLVED: To provide a cooling structure of a hydraulic continuously variable transmission in a simple structure at low cost.

SOLUTION: A port block 42 is connected to a transmission casing 41 storing a pump 10P and a motor 10M for transmission. A meandering oil passage d for cooling connected to a charge oil passage in the port block 42 is formed in the port block 42. Cooling air from a cooling fan fitted to the input shaft 43 of the pump 10P is fed to the outer surface of the port block 42.

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