Patent ID: 6595177
Filing Date: 2003-07-22
Classification: F01L

Abstract:
A porting method in an internal combustion engine for delivering a gas mixture to a combustion space and for exhausting said gas mixture upon completion of combustion, comprising the steps of: mounting at least one valving cylinder within a head of an engine block and for each one of the at least one valving cylinder, providing the valving cylinder with a pair of apertures in diametrically opposing and axially offset positions through a wall of the cylinder, axially positioning a ranifold rod within the valving cylinder, providing a through port in the manifold rod in alignment with the pair of apertures such that a gas flow may communicate from one of the pair of apertures to the other of the pair of apertures through the through port; rotating the valving cylinder in timing with the internal combustion engine for porting the engine; and positioning the manifold rod such that the through port is aligned with the pair of apertures once per each full rotation of the valving cylinder.