Turbine wheel of an exhaust-gas turbocharger

US10001012B2 · kind B2 · utility

Assignee

• BorgWarner Inc. · US

Inventors

• Frank Scherrer · Bischofswerda, DE
• Menno Roder · Kirchheimbolanden, DE
• Gerald Schall · Frankenthal (Pfalz), DE
• Juergen Strelbitski · Orbis, DE
• Michael Loewenberg · Bolanden, DE
• Stefan Eisinger · Bornheim, DE
• Adnan Adilovic · Darmstadt, DE
• Achim Klein · Kreuztal, DE

Key dates

• Filing date: Mar 25, 2014
• Grant date: Jun 19, 2018
• Expiry date: Dec 23, 2034

Classification

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

Abstract

A turbine wheel (1) of an exhaust-gas turbocharger (2), formed from a titanium aluminide material, having a wheel back (7) which is of closed configuration as viewed from an axial direction (A) and which has an outer contour (17), a hub (3) which extends from the wheel back (7) and which tapers along the axial direction (A), and a multiplicity of turbine blades (4) which extend from the wheel back (7) and from the hub (3) and which blades extend outward in a radial direction (R), as far as a connection region outer diameter (DAB) at least in a connection region (5). The wheel back (7) has, in an outer region (11) adjoining the connection region (5), a wheel back outer diameter (DRR) which is greater than or equal to the connection region outer diameter (DAB).