Patent ID: 6478017
Filing Date: 2002-11-12
Classification: F02M

Abstract:
An internal-combustion engine, in particular for a vehicle, comprising a plurality of cylinders; a cylinder head defining, for each of the cylinders, at least one exhaust duct for the exhaust gases and at least one intake duct; an exhaust manifold communicating with said exhaust ducts; and a system for recirculating exhaust gas from said exhaust manifold to said intake ducts, and comprising a distribution manifold for distributing the recirculated exhaust gases to said intake ducts, and a recirculation duct extending between said exhaust manifold and said distribution manifold and having at least one portion which is provided directly in said cylinder head; said cylinder head comprising heat exchange means for cooling said recirculated exhaust gases; said heat exchange means comprising at least one cooling chamber provided in said cylinder head and forming part of a cooling circuit of said engine, and a plurality of heat exchange baffles disposed in said recirculation duct so as to divide one portion of said recirculation duct into a plurality of channels; said heat exchange baffles being formed in one piece with said cylinder head.