Continuously variable transmission

Details Continuously variable transmission Continuously variable transmission

2006-07-18

2006-07-18

Pang, Roger (Department: 3681)

Planetary gear transmission systems or components

Nonplanetary variable speed or direction transmission...

Condition repsonsive

C475S216000, C477S041000, C477S143000

Reexamination Certificate

active

07077777

ABSTRACT:
A continuously variable transmission has: an input shaft, an output shaft, a toroidal type continuously variable transmission, and a planetary gear mechanism including a sun gear, a ring gear and a planetary gear. The power transmitted to first and second power transmission systems is made to converge to two gears of the planetary gear mechanism, and a remaining gear is coupled with the output shaft. A mode changeover device effects a changeover between, during forward movement, a first mode for a low speed side, which utilizes the first power transmission system and a second mode for a high speed side, which utilizes the first and second power transmission systems. Such changeover is effected by the operation of connecting and disconnecting a first mode clutch and a second mode clutch. The operation of effecting the changeover between the first mode and the second mode is effected in 0.2 to 1 second.

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