Patent ID: 6443110
Filing Date: 2002-09-03
Classification: F01L

Abstract:
A rotary valve head system for a multi-cylinder engine having pistons residing within cylinders and capable of reciprocal movement therein forming multiple combustion chambers, each cylinder having intake and exhaust ports, the engine having fuel, air or fuel/air intake means to each cylinder and exhaust passage means for exhausting combustion products from each cylinder, the rotary valve head system comprising:a hollow intake rotary valve tube having closed ends and multiple apertures formed therethrough corresponding to each cylinder intake port, wherein each aperture is registerable with the engine intake means and a cylinder intake port according to an intake timing mechanism operably linked to the intake rotary valve tube; a hollow exhaust rotary valve tube having closed ends and multiple apertures formed therethrough corresponding to each cylinder exhaust port wherein each aperture is registerable with the engine exhaust passageway means and a cylinder exhaust port according to an exhaust timing mechanism operably linked to the exhaust rotary valve tube; and a cylinder head overlying the multiple cylinders and the intake and exhaust rotary valve tubes, the cylinder head having head intake ports registered with the cylinder intake ports of the multiple cylinders and registerable with the apertures of the intake rotary valve tube, and head exhaust ports registered with the cylinder exhaust ports of the multiple cylinders and registerable with the apertures of the exhaust rotary valve tube; wherein incoming fuel/air from the intake means is admitted within an aperture of the intake rotary valve tube and permitted to flow through the hollow intake rotary valve tube until entering into a cylinder through a tube aperture registered with a head intake port and a cylinder intake port; wherein the outgoing combustion products are emitted through the aligned cylinder exhaust port, head exhaust port, and an aperture of the exhaust rotary valve tube and permitted to flow through the hollow exhaust rotary valve tube until exiting into the exhaust passage means through an exhaust rotary valve tube aperture registered therewith; and wherein the intake and exhaust rotary valve tubes include spherical components having apertures aligned with the intake and exhaust rotary valve tube apertures.