INTERNAL COMBUSTION ENGINE WITH PHASE SHIFTING OF OPERATION CYCLE Russian patent published in 1995 - IPC

FIELD: engine engineering. SUBSTANCE: engine has cylinder, working and auxiliary pistons received in the cylinder, spark plug, inlet and outlet valves mounted in the wall of the cylinder, transmitting members coupled with the crankshaft, additional shaft connected to one of the transmitting members, cam coupled with one of the ends of the additional shaft, returning spring, and stop with a rod connected to the auxiliary piston. One of the ends of the spring is connected to the stop which is in contact with the cam. The working piston is coupled with the crankshaft through a crank mechanism. The gear ratio of the transmitting members is 1. Power hydraulic cylinder with a rod and oil distributor, which affords movement of the rod of the power hydraulic cylinder, can drive the auxiliary piston. EFFECT: enhanced efficiency. 2 cl, 4 dwg