Exhaust turbine

US6478536B2 · kind B2 · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Volker Doring · Stuttgart, DE
• Hans-Dieter Hensel · Leinfelden, DE
• Peter Schick · Eßlingen, DE

Key dates

• Filing date: Jun 8, 2001
• Grant date: Nov 12, 2002
• Expiry date: Jun 8, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2220/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In an exhaust turbine for a turbocharger having a rotor rotatably supported in a turbine casing wherein the turbine casing has a spiral inlet with an annular space disposed directly around the rotor and an axial cavity extending from the annular space axially into the casing and slideably receiving a guide vane structure so as to be movable between a retracted position in the annular space and an extended position, in which the guide vane structure is disposed in the annular space, the guide vane structure has opposite outer and inner cover rings and the turbine casing has a recess opposite the axial cavity so that in the extended position of the guide vane structure its outer cover ring is fittingly received in the recess while the inner cover ring is disposed at the outer end of the axial cavity providing for a smooth inlet flow duct surface.