Turbocharger for use in an internal combustion engine

摘要

A turbocharger comprising a center housing and a turbine housing. The center housing has at its one end a radially outwardly projecting flange which has an annular end face. The turbine housing has at its one end a radially outwardly projecting flange which has an annular end face. The turbine housing is fixed onto the center housing so that the annular end face of the turbine housing is in contact with the annular end face of the center housing. An annular air passage is formed between the annular end faces of the turbine housing and the center housing. The annular air passage is connected to the diffuser or the air discharge chamber of the compressor of the turbocharger via an air inflow passage for feeding a cooling air into the annular air passage.