FULLY GEARED SINGLE INPUT ADAPTIVE CONTINUOUSLY VARIABLE TRANSMISSION

摘要

An adaptive continuously variable transmission (CVT) constructed to automatically adjust gear ratio in response to changes in power to an input shaft, and to the load applied to the output shaft while still transmitting power to the output shaft. The transmission blends three compound planetary gear sets together so that the instantaneous difference in rotational speed between the input and output shafts sets the gear ratio and torque output of the transmission.

主权项

1. An adaptive continuously variable transmission (CVT) comprising:
a first planetary gear set including a first planet carrier, a first ring gear and a first sun gear, where the first ring gear meshes with a first idler gear, the first sun gear meshes with a second idler gear, which meshes with a third idler gear, a first bearing encompasses a portion of a first support arm which is, in turn, connected to a stator at a first end and at a second end the first support arm is connected to the second idler gear, the first support arm includes a second arm component connected to the third idler gear; a second planetary gear set includes a first planet gear coupled to a shaft which runs through a second bearing, connected to a second planet carrier, and is connected to a second planet gear, a fourth idler gear meshes to the second planet gear and a second sun gear, where first and second planet gears rotate together to provide a gear reduction, and a one-way clutch is operatively coupled to a second planet carrier; and a third planetary gear set includes a third ring gear coupled to a output shaft where the output shaft is also coupled to the second sun gear, and the third ring gear also meshes with the combination gear.