Continuously variable transmission

Details Continuously variable transmission Continuously variable transmission

2005-06-07

2005-06-07

Charles, Marcus (Department: 3682)

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Adjusted by power from pulley drive train

C474S008000, C475S210000, C074S745000

Reexamination Certificate

active

06902502

ABSTRACT:
A continuously variable transmission including a driving pulley, a driven pulley, an endless dry-type belt wound around both pulleys, a tension-adjusting device for pressing the slack side of the belt to generate belt tension, stroke mechanisms provided on both pulleys for axially shifting the movable sheaves, a ratio-changing motor, and a gear mechanism for transmitting the rotational force generated by the motor to both stroke mechanisms in such a way that the movable sheaves of both pulleys can be shifted synchronously and axially oppositely in relation to the fixed sheaves. With this arrangement, the belt is prevented from slipping, the transmission ratio can be controlled precisely and stably, and the shift-response of this transmission can be improved. The motor can be reduced both in its size and its consumption of electric power.

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U.S. Appl. No. 10/148,203, filed Jun. 7, 2002, Temma.

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