Arrangement for recognizing differences in RPM between two exhaust gas turbochargers

US5845495A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Bernhard Schray · Oberriexingen, DE
• Werner Haming · Neudenau, DE
• Michael Bauerle · Markgröningen, DE

Key dates

• Filing date: Nov 21, 1997
• Grant date: Dec 8, 1998
• Expiry date: Nov 21, 2017

Classification

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

Abstract

An arrangement enabling a reliable detection of speed-of-rotation deviations between two exhaust-gas turbochargers of an internal combustion having separate cylinder banks included a device, which determines the difference between the pressures prevailing in the two exhaust trains of the two cylinder banks upstream from the exhaust turbines and signals a relevant speed deviation when the pressure difference determined exceeds a specifiable threshold.