Control of a charged, piston internal combustion engine having a plurality of exhaust gas turbochargers

US5069194A · kind A · utility

Assignee

• MTU Motoren-und Turbinen-Union · DE

Inventors

• Herbert Deutschmann · Friedrichshafen, DE
• Hans Sudmanns · Friedrichshafen, DE

Key dates

• Filing date: Mar 12, 1990
• Grant date: Dec 3, 1991
• Expiry date: Mar 12, 2010

Classification

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

Abstract

One of the exhaust gas turbochargers of a plurality of parallel turbochargers is constructed to be disconnectable and connectable by the arrangement of one controllable exhaust gas blocking device in the exhaust gas pipe in front of the exhaust gas turbine and one automatically operating charge air blocking device in the suction pipe of the charge air compressor. A fast power increase to the nominal power of the internal-combustion engine is achieved, if a bypass pipe with a controllable bypass blocking device is arranged at the switchable exhaust gas turbocharger, this bypass blocking device being constructed as a transverse connection between the suction pipe of the charge air compressor of the exhaust gas turbocharger, which cannot be disconnected, and the suction pipe of the charge air compressor downstream of the charge air blocking device of the disconnectable and connectable exhaust gas turbocharger. The thermal and mechanical overloading of the connected exhaust gas turbocharger is therefore avoided.