Exhaust gas turbocharger having an internally insulated turbine volute

US9841033B2 · kind B2 · utility

Assignees

• BorgWarner Inc. · US
• Isolite GMBH · DE

Inventors

• Waldemar Henke · Griesheim, DE
• Patric Hoecker · Landau, DE
• Stefan Muenz · Ludwigshafen, DE
• Matthias Kroll · Dackenheim, DE
• Werner Loibl · Ingolstadt, DE
• Holger Oberthuer · Ludwigshafen, DE

Key dates

• Filing date: Apr 30, 2014
• Grant date: Dec 12, 2017
• Expiry date: Apr 30, 2034

Classification

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

Abstract

A turbine housing (1) of an exhaust-gas turbocharger (15) having a turbine volute (7) which is delimited by a metallic outer shell (8) and which has an inner wall (9); and a heat insulation layer (10) which is arranged on the inner wall (9) and which has a heat insulation core (6A, 6B) which, on its surface (12A, 12B) facing into a volute interior space (11), is covered by a first sheet-metal shell (3A, 3B). The heat insulation core (6A, 6B) is covered, on a surface (13A, 13B, 13′B) facing toward the inner wall (9), by a second sheet-metal shell (4A and 4B respectively).