Air-intake duct system for a combustion engine

US7207324B2 · kind B2 · utility

Assignee

• PIERBURG GMBH · DE

Inventors

• Hans-Ulrich Kuhnel · Rheydt, DE
• Michael Sanders · Grand Rapids, US
• Armin Schurfeld · Meerbusch, DE
• Dieter Thonnessen · Viersen, DE

Key dates

• Filing date: Sep 1, 2004
• Grant date: Apr 24, 2007
• Expiry date: Sep 1, 2024

Classification

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

Abstract

The invention relates to an air-intake duct system (1) in which a throttle valve (40), an exhaust gas recirculating valve (29), a bypass valve (19), an exhaust gas cooler (11), against which exhaust gas flows via bypass valve (19), and, optionally, an air mass sensor are integrated. A complete intake unit for modern engines is hereby created, with which achieves a charging optimization and thus a reduction in fuel consumption as well as a reduction in pollutants by a corresponding thermal management in the engine by the exhaust gas cooler (11) that, together with a shell (3, 4) of the housing (2), is manufactured as a single piece. The individual add-on pieces (12, 19, 29, 40, 59) are optimally matched to one another and have, due to their designs, a low weight and a low finishing work requirement. This makes it possible to distinctly reduce assembly and manufacturing costs.