Exhaust gas turbocharger for an internal combustion engine

US5454225A · kind A · utility

Assignee

• Mercedes-Benz A.G. · DE

Inventors

• Siegfried Sumser · Stuttgart, DE
• Wolfgang Erdmann · Buxtehude, DE
• Erwin Schmidt · Baltmannsweiler, DE
• Horst Hanauer · Murrhardt, DE
• Klaus Wunderlich · Waiblingen, DE

Key dates

• Filing date: Sep 7, 1994
• Grant date: Oct 3, 1995
• Expiry date: Sep 7, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In an exhaust gas turbocharger for an internal combustion engine comprising a compressor and an exhaust gas turbine mounted on a common shaft, the exhaust gas turbine includes a rotor with radial and semi-axial flow inlet areas and a single-flow duct surrounding the rotor and having port regions in the form of annular nozzle structures with guide vanes disposed adjacent each flow inlet area which are divided from one another by a ring of streamlined shape which is mounted to the guide vanes of one of the adjacent nozzle structures, said guide vanes having at least portions which are movable for adjusting the flow cross-section of the respective annular nozzle structures for controlling the flow through the radial and semi-axial flow inlet areas.