초록 ▼

A time twister cylinder head includes two rotary valves driven by a timing belt coupled to the engine crankshaft by belts and pulleys to describe a desired rate of rotation of the valves with respect to rotation of the crankshaft. Each valve is generally cylindrical with side faces opening in opposi

A time twister cylinder head includes two rotary valves driven by a timing belt coupled to the engine crankshaft by belts and pulleys to describe a desired rate of rotation of the valves with respect to rotation of the crankshaft. Each valve is generally cylindrical with side faces opening in opposite directions to permit coupling with the intake and exhaust manifolds. The common axis of rotation of the valves is slightly offset from the centerline of the air passages so that pressure buildup in the cylinder will be applied off-center on the valves to enhance rotation.

대표청구항 ▼

In an internal combustion engine having at least one cylinder within which a piston reciprocates, a crankshaft rotated by reciprocation of said piston, said cylinder having an upwardly facing opening covered by a cylinder head, an intake manifold and an exhaust manifold connected to respective intak

In an internal combustion engine having at least one cylinder within which a piston reciprocates, a crankshaft rotated by reciprocation of said piston, said cylinder having an upwardly facing opening covered by a cylinder head, an intake manifold and an exhaust manifold connected to respective intake and exhaust passageways in said cylinder head, the improvement comprising intake and exhaust valves in said cylinder head for controlling supply to and exhaust from said cylinder; each of said valves comprising a cylindrical body having a generally circular peripheral wall, a side wall and an opening opposite said side wall, said peripheral wall having a port therethrough; said intake valve having an inlet comprising a said opening and an outlet comprising a said port; said exhaust valve having an inlet comprising a said port and an outlet comprising a said opening; said intake and exhaust valves being mounted in said head with said openings facing away from one another; and drive means for rotating said valves disposed between said valves adjacent said side walls thereof.