Patent ID: 7328680

Claim:
A cylinder head assembly for an internal combustion engine having at least one cylinder housing a piston reciprocally movable-therein throughout successive intake, compression, power, and exhaust strokes and further defining a combustion chamber at a top of said cylinder, and for facilitating the flow of engine gasses between a manifold and the combustion chamber, said cylinder head assembly comprising: a cylinder head defining therein a spherical valve race in gaseous communication with the combustion chamber; and a spherical valve having a spherical body defining a central axis of rotation and further defining a solitary passageway therethrough, said passageway having a first opening substantially coaxial with said central axis for gaseous communication with a manifold and a second opening substantially transverse from said central axis, said spherical valve rotatable in said spherical valve race about said central axis of rotation to selectively place said second opening in gaseous communication with the combustion chamber.