Arrangement for a supercharged combustion engine concerning coolers for inlet air to and exhaust gases from the engine

US8490392B2 · kind B2 · utility

Assignee

• Scania CV AB · SE

Inventors

• Zoltan Kardos · Malung, SE
• Erik Söderberg · Stockholm, SE

Key dates

• Filing date: Jun 3, 2009
• Grant date: Jul 23, 2013
• Expiry date: Apr 23, 2030

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 for a supercharged combustion engine including a first compressor subjecting air to a first compression step, a second compressor subjecting the air to a second compression step, a first cooling system with a circulating coolant, a second cooling system with a circulating coolant which is at a lower temperature than the coolant in the first cooling system, a first charge air cooler applied to an air inlet line to the engine for cooling compressed air, the first cooler is located between the first compressor and the second compressor and is cooled by coolant from the second cooling system, a second charge air cooler applied to the air inlet line at a location downstream of the second compressor and is cooled by coolant from the first cooling system, and a third charge air cooler applied at a location downstream of the second charge air cooler and cooled by coolant from the second cooling system.