Patent ID: 7017534

Claim:
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.