Patent ID: 8601999
Filing Date: 2013-12-10
Classification: F01B,F01L,F02B

Abstract:
1. An internal combustion engine having reciprocating piston sleeves, comprising: an engine block comprising a cylinder including an intake port, an exhaust port, and two linearly opposing pistons reciprocatingly mounted relative to two opposing crankshafts; a pair of piston sleeves reciprocatingly mounted in the cylinder around each piston and connected relative to their respective crankshafts, each piston sleeve having a slotted port in communication with either the intake port or the exhaust port; a pair of sleeve couplers pivotably connected to their respective piston sleeves and eccentrically rotatable relative to their respective crankshafts; a pair of eccentric inserts each having an outside circumferential surface concentrically offset from an inside circumferential surface aperture, where each inside circumferential surface aperture is pivotable about its respective crankshaft and each outside circumferential surface is rotatable relative to its respective sleeve coupler; and a pair of phase couplers helically moveable about their respective crankshafts, where the phase couplers are pivotably fixed and slidable relative to their respective eccentric inserts, such that helical movement of the phase couplers about their respective crankshafts changes the relation of timing between the reciprocating pistons and the piston sleeves.