Kinematics and Dynamics of Contrapositive Cam Engine

Vector and coordinate transformation are used to analyse the work surface equation and the slip velocity between the cam and idler wheels, also the dynamic characteristics of pistons, cylinders and principal axis of the contrapositive cam engine. Compared with dissymmetrical engines, the results show that the contrapositive cam engine can balance the axial force with larger torque output and lower loads on shafting bearings. The kinematic and dynamic analysis indicates the scheme of contrapositive can engines is completely feasible.