Lego CVT (= inspiration)

This Lego CVT enables to have : . A constant speed of the motor . A infinity of variable ratio . A variable speed between 200rm (1:1) and 40 rpm (1:5) . A variable torque between 50N.cm (1:1 = motor torque) and arround 250N.cm (1:5) Of course, some torque are lost because of the friction pin but the torque is increased by 5 so the loss is negligible regarding the increase. Es gibt mit 2 Differentiale noch mehr möglichkeiten:

http://www.nico71.fr/continuously-variable-transmission/

It enables a variable ratio on the output from 1:1 to 1:5. The CVT chooses the most suitable ratio functions of the resistive torque on the output. The principle is based on two differentials which are connected side by side with a first gear : 1:1 and a second gear on the other side : 1:5. The side with the 1:5 gear has also a friction pin in order to limit the rotation.