A mechanical continuously variable torque transmission, in particular for flywheel driven, fuel efficient, low emission cars, trucks and locomotives includes structure as follows: three eccentrics 20, 21, 22, mounted on input shaft 18 and carrying needle bearings 23, 24, 25, rotate freely inside...http://www.google.com/patents/US5771743?utm_source=gb-gplus-sharePatent US5771743 - Continuously variable torque transmission with torsion bars and energy recuperating brake device 
