Valve apparatus for an internal combustion engine

A processor-readable medium storing code representing instructions to cause a processor to perform a process, the code comprising code to:

• open an intake valve associated with a cylinder of an internal combustion engine when a crankshaft of the internal combustion engine is in a first rotational position to allow a gas to flow from an intake manifold into the cylinder;
• inject a fuel into the gas to form a mixture of the gas and the fuel;
• close the intake valve associated with the cylinder when the crankshaft of the internal combustion engine is in a second rotational position to fluidically isolate the cylinder from the intake manifold, the second rotational position being different from the first rotational position;
• open an exhaust valve associated with the cylinder when the crankshaft of the internal combustion engine is in a third rotational position to allow a first portion of a combusted mixture to flow from the cylinder into an exhaust manifold, the third rotational position being different from the first rotational position and the second rotational position;
• open the intake valve associated with the cylinder when the crankshaft of the internal combustion engine is in a fourth rotational position to allow a second portion of the combusted mixture to flow from the cylinder into the intake manifold, the fourth rotational position being different from the first rotational position and the second rotational position;
• close the intake valve associated with the cylinder when the crankshaft of the internal combustion engine is in a fifth rotational position, the fifth rotational position being different from the first rotational position, the second rotational position and the fourth rotational position;
• and
• close the exhaust valve associated with the cylinder when the crankshaft of the internal combustion engine is in a sixth rotational position, the sixth rotational position being different from the first rotational position, the second rotational position, and the third rotational position.

A processor-readable medium storing code representing instructions to cause a processor to perform a process, the code comprising code to:

• open an intake valve associated with a cylinder of an internal combustion engine when a crankshaft of the internal combustion engine is in a first rotational position to allow a first gas to flow from an intake manifold into the cylinder;
• open an exhaust valve associated with the cylinder when the crankshaft of the internal combustion engine is in a second rotational position to allow a second gas to flow from an exhaust manifold into the cylinder, the second gas including combustion products;
• close the exhaust valve associated with the cylinder when the crankshaft of the internal combustion engine is in a third rotational position to fluidically isolate the cylinder from the exhaust manifold, the third rotational position being different from the first rotational position;
• close the intake valve associated with the cylinder when the crankshaft of the internal combustion engine is in a fourth rotational position to fluidically isolate the cylinder from the intake manifold, the fourth rotational position being different from the first rotational position;
• open an exhaust valve associated with the cylinder when the crankshaft of the internal combustion engine is in a fifth rotational position to allow a portion of a combusted mixture to flow from the cylinder into an exhaust manifold, the fifth rotational position being different from the first rotational position, the second rotational position, the third rotational position and the fourth rotational position;
• and
• close the exhaust valve associated with the cylinder when the crankshaft of the internal combustion engine is in a sixth rotational position, the sixth rotational position engine being different from the second rotational position, the third rotational position, the fourth rotational position and the fifth rotational position.

An internal combustion engine, comprising:

• an engine block defining a cylinder therein;
• a cylinder head having an electronically actuated valve member, the electronically actuated valve member configured to control a flow of gas between the cylinder and a gas manifold;
• and
• a controller in communication with the electronically actuated valve, the controller configured to:
• open the electronically actuated valve when a crankshaft of the internal combustion engine is in a first rotational position to allow a first gas to flow from the gas manifold into the cylinder;
• close the electronically actuated valve when the crankshaft of the internal combustion engine is in a second rotational position to fluidically isolate the cylinder from the gas manifold, the second rotational position being different than the first rotational position;
• open the electronically actuated valve when the crankshaft of the internal combustion engine is in a third rotational position to allow a second gas contained within the cylinder to flow from the cylinder into the gas manifold, the third rotational position being different from the first rotational position and the second rotational position;
• and
• close the electronically actuated valve when the crankshaft of the internal combustion engine is in a fourth rotational position to fluidically isolate the cylinder from the gas manifold, the fourth rotational position being different than the first rotational position, the second rotational position and the third rotational position, the first rotational position, the second rotational position, the third rotational position and the fourth rotational position each occurring within one combustion cycle of the internal combustion engine.