Patent ID: 7219633

Claim:
A compression ignition rotating cylinder engine comprising: a pair of opposing cylinder blocks, each said cylinder block having a plurality of piston through bores extending therethrough and arranged in a polar array proximal to the periphery thereof; a plurality of piston assemblies corresponding to the number of throughbores in said cylinder blocks; a fixed header plate sandwiched between said cylinder blocks comprising an exhaust port, an intake port and a combustion chamber common to said opposing pistons; a pair of opposing cam plates having cam follower tracks; means for injecting fuel into said combustion chamber; and a drive shaft; wherein said piston assembly comprises: a piston head; a piston rod extending from said piston head and having a stop member near the distal end thereof; a rotating wheel member forming a cam follower disposed at the distal end of said piston rod; an elongate slider throughbore extending through a medial portion of said piston rod towards said piston head; a slider pin for insertion through said slider throughbore; a spring member disposed around said piston rod; and means for lubricating moving components; wherein said piston heads reside reciprocatively within said piston bores; wherein said slider pins extend into their respective cylinder blocks on each side of said slider rod and are retained fixedly therein thereby aligning said slider rods during their back and forth motion; and wherein said springs apply a bias to said stop members of said piston rods to urge said piston rods away from said header plate to maintain pressure of said cam followers against said cam plate.