Supercharged internal combustion engine having exhaust-gas recirculation arrangement and method for operating an internal combustion engine

US9115639B2 · kind B2 · utility

Assignee

• Ford Global Technologies, LLC · US

Inventors

• Simon Petrovic · Aachen, DE
• Mark Eifert · Hessen, DE

Key dates

• Filing date: Oct 4, 2012
• Grant date: Aug 25, 2015
• Expiry date: Oct 27, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Embodiments for an internal combustion engine having at least one cylinder, at least one exhaust line for discharging combustion gases via an exhaust-gas discharge system, and at least one intake line for supplying charge air via an intake system are provided. In one example, an internal combustion engine comprises an exhaust-gas recirculation arrangement which comprises a recirculation line which branches off from the exhaust-gas discharge system and which opens into the intake system, an exhaust-gas turbocharger comprising a compressor arranged in the intake system and a turbine arranged in the exhaust-gas discharge system, a throttle element which is arranged in the intake line downstream of the compressor, a bypass line which branches off from the intake line upstream of the throttle element and which opens into the intake line again downstream of the throttle element, and an expansion machine for gaining additional energy arranged in the bypass line.