Cylinder head and exhaust manifold assembly for multi-cylinder internal combustion engine of motor vehicle, has extensions provided for raising temperature of inlet flange to homogenize temperature of manifold, during operation

摘要

#CMT# #/CMT# The assembly has an exhaust manifold (7) including an exhaust gas inlet flange fixed to a cylinder head (8) at exhaust gas outlets of cylinders. An outlet flange is connected to an exhaust gas line through a gas treating and utilizing apparatus i.e. turbocharger. Tubes are arranged between the flanges to connect gas flows discharging from the cylinders into a single flow traversing the outlet flange toward the line. Extensions are provided for raising a temperature of the inlet flange to homogenize a manifold temperature, during operation, and received in hollow cylindrical counterbores. #CMT#USE : #/CMT# Cylinder head and exhaust manifold assembly for a multi-cylinder internal combustion engine of a motor vehicle. #CMT#ADVANTAGE : #/CMT# The extensions permit to efficiently block the cooling of the inlet flange due to its contact with the cooled cylinder head of the engine. The extensions are provided for raising the temperature of the inlet flange to homogenize the temperature of the manifold, during operation, thus efficiently avoiding disturbances due to observed differential thermal dilation, in a simple, efficient and inexpensive manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a sectional view of a cylinder head and exhaust manifold assembly. 3b : Tube 6b : Extension 7 : Exhaust manifold 8 : Cylinder head 9b : Hollow cylindrical counterbore.