Patent ID: 6526935
Filing Date: 2003-03-04
Classification: F02B

Abstract:
A machine comprising at least one piston reciprocating in a cylinder, a machine housing locating axially aligned bearing bores for carrying an input/output shaft, a connecting rod attached to said piston at a first end and to the journal of a second crankshaft at a second end, an input/output shaft assembly rotatably carried in the bearings of said bores, the segments of said input/output shaft being connected to each other by and drive forces transmitted through said second crankshaft rotatably journaled in the webs of said input/output shaft about a second axis parallel to and offset from the axis of rotation of said input/output shaft, said journal being offset from said axis of rotation of said second crankshaft and located by arms thereof defining a third parallel axis about which said second end of the connecting rod oscillates as said journal rotates within said second end of the connecting rod, at least one drive wheel fixedly attached to at least one end of said second crankshaft and controlled by a drive means so that said second crankshaft is constrained to rotate about said second axis as said second axis orbits around said axis of rotation of the input/output shaft, the rotation of said second crankshaft being in the same direction and at the same angular velocity relative to said input/output shaft as said input/output shaft maintains and said piston both stops and starts in motion again four times, creating four strokes of the piston in one revolution of the input/output shaft.