Turbine casing for exhaust gas turbocharger has inlet funnel, rotor casing and exhaust pipe made from embossed or deep-drawn sheet metal, and inlet funnel and exhaust pipe are welded to rotor casing which comprises two half shells

摘要

The inlet funnel(10), rotor casing(20) and exhaust pipe(50) consist of embossed or deep-drawn sheet metal. The rotor casing consists of two half shells(22,23), and the inlet funnel and exhaust pipe are welded to the rotor casing. A sealing edge is part of the inlet funnel or part of the rotor casing. The inlet funnel consists of two half shells or is in one piece, and may be formed by an internal high pressure moulding technique, and may be sized over an internal mandrel.