Engine valve assembly having holding tank with return valve and discharge valve in the valve assembly

A valve assembly for an engine having a cylinder, a cylinder head, and a reciprocating piston within the cylinder, wherein the valve assembly is configured for incorporation into the cylinder head, wherein a maximum spacing of the piston from the cylinder head defines a volume of a combustion chamber of the engine, wherein the valve assembly comprises:

• a housing disposed within the head of the cylinder, a holding tank with return valve and discharge valve located within the housing of the valve assembly, the return valve providing fluidic communication between the holding tank and the cylinder, and the discharge valve being operative for providing fluidic communication between the holding tank and a return manifold of the engine;
• wherein each of the return valve and the discharge valve has a valve head and a valve stem supporting the valve head, the valve stems of the return and the discharge valves being arranged in a coaxial arrangement and being displaceable relative to each other;
• the valve stem of the return valve is an inner stem disposed within the discharge valve stem, and the valve stem of the discharge valve is an outer stem disposed externally to the return valve stem;
• the coaxial arrangement of the valve stems positions distal ends of the inner and the outer valve stems to permit engagement with cams of a camshaft of the engine for driving the valve stems upon rotation of the camshaft;
• and
• the volume of the holding tank is preset to a value within a range of ten percent of the combustion chamber volume to a value of ninety percent of the combustion chamber volume for gasoline engines and within a range of three percent of the combustion chamber volume to fifty percent of the combustion chamber volume for diesel engines.

A valve assembly for an engine having a cylinder, a cylinder head, and a reciprocating piston within the cylinder, wherein the valve assembly is configured for incorporation into the cylinder head, wherein a maximum spacing of the piston from the cylinder head defines a volume of a combustion chamber of the engine, wherein the valve assembly comprises:

• a housing disposed within the head of the cylinder, a holding tank with return valve and discharge valve located within the housing of the valve assembly, the return valve providing fluidic communication between the holding tank and the cylinder, and the discharge valve being operative for providing fluidic communication between the holding tank and a return manifold of the engine;
• wherein each of the return valve and the discharge valve has a valve head and a valve stem supporting the valve head, the valve stems of the return and the discharge valves being located transversely of each other in a spaced-apart arrangement and being displaceable relative to each other;
• the valve stem of the return valve passes outside of the holding tank to an entrance of the holding tank for controlling a passage of engine gases into the holding tank, and the valve stem of the discharge valve enters an exit of the holding tank for controlling a passage of engine gases out of the holding tank;
• the spaced-apart arrangement of the valve stems positions ends of the valve stems of the return valve and the discharge valve to permit engagement with cams of a camshaft of the engine for driving the valve stems upon rotation of the camshaft concurrently with a driving of an intake valve and an exhaust valve of the engine;
• and
• the volume of the holding tank is preset to a value within a range of ten percent of the combustion chamber volume to a value of ninety percent of the combustion chamber volume for gasoline engines and within a range of three percent of the combustion chamber volume to fifty percent of the combustion chamber volume for diesel engines.