A converting mechanical system including a dual connecting rod having a top section adapted to be pivotally connected to a piston on a conventional internal combustion engine and a bottom section adapted to be connected to a crankshaft of a conventional in...

A method for operating a multi-stroke combustion engine provided with electronically controlled intake and exhaust valves, the method comprising the steps of: providing a set of different stroke operating modes, assigning a combustion frequency number Ni t...

A variable valve type internal combustion engine has cylinders and electromagnetically actuated intake and exhaust valves for each cylinder. The intake air amount fed to the cylinder is controlled by controlling the close timing of the intake valve. A cont...