Patent ID: 9732615
Date: 2017-08-15
CPC Classifications: F01B,F01L,F02B,F02F,F02M,Y02T

Claim:
1. A cylinder head for an internal combustion engine, the cylinder head comprising: at least one intake port and at least one exhaust port, said at least one intake port connected to the internal combustion engine such that fluid can pass through the at least one intake port into the internal combustion engine and said at least one exhaust port connected to the internal combustion engine such that fluid can pass from the internal combustion engine through the at least one exhaust port; a movable intake valve positioned at least partially within the at least one intake port configured to control the flow of fluid through the at least one intake port; and a movable exhaust valve positioned at least partially within the at least one exhaust port configured to control the flow of fluid through the at least one exhaust port; wherein the at least one intake port has a minimum intake port diameter and a first inside radius positioned toward an intake port valve seat from the minimum intake port diameter smoothly transitions to a second inside radius positioned toward the intake port valve seat from the first radius so that the intake port expands to meet the intake port valve seat to allow a maximum flow volume into the internal combustion engine, the first inside radius being greater than 0.4 inches and less than 1.5 inches, the second inside radius being greater than 0.13 inches and less than 0.7 inches.