Supercharged internal combustion engine with exhaust-gas turbocharging arrangement, and method for operating an internal combustion engine of said type

US10378433B2 · kind B2 · utility

Assignee

• Forb Global Technologies, LLC · US

Inventors

• Joerg Kemmerling · Monschau, DE
• Hanno Friederichs · Aachen, DE
• Helmut Matthias Kindl · Aachen, DE
• Vanco Smiljanovski · Bedburg, DE
• Franz Arnd Sommerhoff · Aachen, DE
• Andreas Kuske · Geulle, NL
• Frank Wunderlich · Netphen, DE

Key dates

• Filing date: Jan 25, 2017
• Grant date: Aug 13, 2019
• Expiry date: Jul 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 supercharged internal combustion engine with an intake system and an exhaust gas discharge system that include two turbochargers arranged in series, a turbo-generator, and an electrically-driven compressor. During engine operation with mid-to-high exhaust gas flow rates, excess exhaust gas that bypasses the high-pressure turbocharger may be directed through the turbo-generator to generate electricity that may be provided to drive the electrically-driven compressor.