Patent ID: 7882811

Claim:
An internal combustion engine comprising: at least one cylinder; an intake valve associated with the at least one cylinder; an exhaust valve associated with the at least one cylinder; a piston associated with the at least one cylinder; a camshaft having a first exhaust lobe and a second exhaust lobe; the first exhaust lobe positioned on the camshaft such that the first exhaust lobe opens the exhaust valve associated with the at least one cylinder during a compression stroke of the piston; and the second exhaust lobe positioned on the camshaft such that the second exhaust lobe opens the exhaust valve during an exhaust stroke of the piston; wherein the internal combustion engine is configured such that during the compression stroke, a pressure of compressed air in the cylinder is substantially the same as a pressure of the internal combustion engine not having the first exhaust lobe on the camshaft.