Radial engine

An internal combustion engine comprising;

• an engine block having at least one combustion chamber therein, means for inducting an air/fuel mixture into the engine block combustion chamber, means for igniting said mixture therein, and means for exhausting the combustion produsts thereof, a drive shaft, a rotator affixed to said drive shaft, additional means for increasing the compression of the fuel/air mixture within said combustion chamber, further means for sealing the space between the combustion chamber within the engine block and the rotator as it passes adjacent the combustion chamber, the additional means including a piston cylinder connecting with the combustion chamber in the engine block, and a reciprocating piston contained within the piston cylinder functions to increase the compression thereof, actuating means connected to said piston for effecting said increase in compression at least twice for each revolution of the drive shaft, the actuating means including a drum cam having a specially configured cam slot on the outer surface thereof in order to effect the aforesaid function, with a cam follower connected between the piston and the cam slot, the further means consists of an oval shaped compression ring mounted in an oval shaped recess in the engine block, the compression ring having a tapering concave surface facing inwardly towards the combustion chamber and a smooth flat outer face which engages with the rotator, so that an increase in compression within the combustion chamber will increase the sealing action of the compression ring.