Patent ID: 8160803
Filing Date: 2012-04-17
Classification: F01N,F02B,F02D,F02M,Y02T

Abstract:
1. A valve and cylinder head assembly configured to fit a bank of cylinders of an internal combustion engine, the assembly comprising: a first exhaust valve for each corresponding cylinder of the bank of cylinders; a second exhaust valve for each corresponding cylinder of the bank of cylinders; a first exhaust port for each corresponding cylinder of the bank of cylinders, the first exhaust port configured to direct flow of exhaust to a first manifold in fluid communication with a first turbocharger; and a second exhaust port for each corresponding cylinder of the bank of cylinders, the second exhaust port configured to direct flow of exhaust to a second manifold in fluid communication with a second turbocharger; wherein the shape of the first exhaust ports differs from the shape of the second exhaust ports; wherein each of the first exhaust valves controls flow of exhaust to a respective one of the first exhaust ports; and wherein each of the second exhaust valves controls flow of exhaust to a respective one of the second exhaust ports.