Patent ID: 7971434

Claim:
A device for a continuously variable transmission, comprising a plurality of variable capacity motors connected together such that the variable capacity motors form a closed circuit together with a pump, wherein: a motor shaft provided for each of the variable capacity motors and an output shaft for extracting rotation are connected via speed change gears of plural gear change ratios, the speed change gears being able to be connected or disconnected and selected via a clutch; and the gear change ratios of the speed change gears are set for different variable capacity motors respectively in descending order of equivalent capacities thereof so that one selected from the equivalent capacities of one of the variable capacity motors is assigned as a maximum equivalent capacity, a second maximum equivalent capacity is assigned as one of the equivalent capacities of another one of the variable capacity motors, and a third maximum equivalent capacity is assigned as one of the equivalent capacities of still another one of the variable capacity motors.