Piston-cam engine

A piston-cam engine, which includes:

• a drive cylinder;
• a drive piston operably disposed within said cylinder having a piston head and a shaft;
• a support frame having a generally cylindrical bearing surface;
• a drive shaft rotatably movably received within said cylindrical bearing surface;
• a cam having a peripheral surface and having a plurality of lobes thereon;
• a roller member connected to said piston shaft and adapted for engagement with said peripheral surface of said cam;
• spring biasing means for biasing said roller member continuously against said peripheral surface of said cam;
• a first slave cylinder adjacent said drive cylinder and has a first slave piston operably disposed in said slave cylinder and has a piston head and a shaft, wherein said first slave piston shaft is connected to said support drive plate to absorb part of a force exerted on said support plate during operation of said engine;
• and
• a second slave cylinder adjacent said drive cylinder and has a second slave piston operably disposed in said slave cylinder and has a piston head and a shaft, wherein said second slave piston shaft is connected to said support drive plate to absorb part of a force exerted on said support plate during operation of said engine.