Spark-ignited internal combustion engine with electrically drivable exhaust gas turbocharger, and method for operating an internal combustion engine of this type

US10393007B2 · kind B2 · utility

Assignee

• Ford Global Technologies, LLC · US

Inventors

• Frank Kraemer · Neunkirchen, DE
• Vanco Smiljanovski · Bedburg, DE
• Joerg Kemmerling · Monschau, DE
• Helmut Matthias Kindl · Aachen, DE
• Franz J. Brinkmann · Hürth, DE

Key dates

• Filing date: May 10, 2016
• Grant date: Aug 27, 2019
• Expiry date: Mar 27, 2037

Classification

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

Abstract

The disclosure relates to a spark-ignited charged internal combustion engine coupled to an exhaust gas turbocharger with a compressor mounted on a rotatable shaft, the rotatable shaft coupled to a turbine and to an electric auxiliary drive. The electric auxiliary drive of the exhaust gas turbocharger may be activated to increase rotational speed of the rotatable shaft to drive the compressor to supply boost to the engine. The electric auxiliary drive may be engaged or disengaged from the rotatable shaft, responsive to engine operating conditions, such as engine speed, rotation speed of the rotatable shaft, exhaust volume, and engine boost demand.