Internal Combustion Engine Cylinder Head with Tubular Apparatus for Intake and Exhaust

A cylinder head for an engine, comprising:

• a cylinder head body, comprising:
• a tubular cavity;
• a manifold port provided on the tubular cavity, connecting to a manifold of the engine;
• and
• a chamber port provided on the tubular cavity, connecting to a combustion chamber of the engine;
• and
• a tubular assembly, comprising:
• an outer tube positioned in the tubular cavity, comprising an outer-tube close end, an outer-tube open end, and a first outer-tube aperture set comprising a first aperture and a first outer-tube aperture group comprising at least one aperture;
• an inner tube positioned in the outer tube, comprising an inner-tube close end, an inner-tube open end, and a first inner-tube aperture set comprising a second aperture and a first inner-tube aperture group comprising at least one aperture, wherein the inner-tube close end is proximate to the outer-tube close end;
• and
• a shaft connected to the inner-tube open end for rotating the inner tube in the outer tube, wherein
• the first aperture overlaps with a portion of the chamber port;
• the first outer-tube aperture group overlaps with a portion of the manifold port;
• and
• when the inner tube rotates, the second aperture sweeps across a portion of the first aperture and the first inner-tube aperture group sweeps across a portion of the first outer-tube aperture group.