Exhaust-gas turbocharger

US7010916B2 · kind B2 · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Siegfried Sumser · Stuttgart, DE
• Helmut Finger · Echterdingen, DE
• Eduard Heinz · Waiblingen, DE
• Lionel Le Clech · Stuttgart, DE
• Wolfram Schmid · Eislingen/Fils, DE

Key dates

• Filing date: Jun 4, 2004
• Grant date: Mar 14, 2006
• Expiry date: Jun 4, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2260/232
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In an exhaust gas turbocharger including a compressor wheel, the compressor wheel is cooled by at least one nozzle which is arranged in close axial proximity to the axis of rotation of the compressor wheel for spraying the backside of the compressor wheel near the center thereof with coolant whereby the coolant, utilizing the centrifugal forces of the rotating compressor wheel, is completely distributed over the entire wheel back surfaces.