| 摘要 |
A variable ratio gear box including two or more differential epicyclic trains, X, Y, coupled together to provide three or more mechanical paths for transmitting power and torque to an output shaft, a hydraulic bypass unit (18, 25) for steplessly variably adjusting the power and torque transmitted through the mechanically paths and a system of clutches (A to C) for determining which paths are utilised and the sense in which they, and hence the bypass unit, are driven. |
