Externally mounted exhaust-gas turbocharger with uncooled gas duct

摘要

In an exhaust-gas turbocharger having an uncooled gas duct, the hot gas casing is connected to the relatively cooler supporting casing by a supporting member resilient in the radial direction. The supporting member consists of an outer flange and an inner flange and of a diaphragm disposed therebetween and comprising at least one fold and two flanks extending predominantly in the axial direction. The coefficient of thermal expansion of the material of the diaphragm flanks is preferably from 5% to 40% higher than that of the hot gas casing.