Exhaust system of a combustion engine

US7578124B2 · kind B2 · utility

Assignee

• Friedrich Boysen GmbH & Co. KG · DE

Inventors

• Rainer Diez · Nagold, DE
• Frank Buhler · Mötzingen, DE

Key dates

• Filing date: Mar 3, 2004
• Grant date: Aug 25, 2009
• Expiry date: Mar 3, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2470/10
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An exhaust system for a combustion engine which comprises at least one exhaust manifold with a plurality of inlet pipes for connection to exhaust ports of the combustion engine. The exhaust system comprises a collector device for merging of the inlet pipes, which has one outlet opening. The outlet opening is connected to subsequent elements of the exhaust system, such as catalytic converter housing. The catalytic converter inflow pipe is guided up to just before the catalytic converter; and the catalytic converter housing is connected directly to the collector housing via a pipe surrounding the catalytic converter inflow pipe. The collector device is made as a one-piece collector housing of a material stiff in bending.