Patent ID: 8550040
Filing Date: 2013-10-08
Classification: F01N,F01P,F02B,F02D,F02F,Y02T

Abstract:
1. A cooling apparatus for an internal combustion engine, comprising: a turbocharger that has a turbine that operates by means of exhaust gas of an internal combustion engine, and a compressor that compresses intake air; multiple first exhaust ports that are formed in a cylinder head of the internal combustion engine and that communicate with an inlet of the turbine; multiple second exhaust ports that are formed in the cylinder head and that do not communicate with the inlet of the turbine; a first exhaust valve that is provided in each cylinder of the internal combustion engine and that communicates with a first exhaust port; a second exhaust valve that is provided in each cylinder of the internal combustion engine and that communicates with a second exhaust port; a first cooling water passage that is formed in the cylinder head and through which only the first exhaust ports pass; and a second cooling water passage that is formed in the cylinder head and through which only the second exhaust ports pass.