Exhaust system of an internal-combustion engine

US5058380A · kind A · utility

Assignee

• Dr. Ing. h.c. F. Porsche AG · DE

Inventors

• Stephan Pelters · Tiefenbronn, DE
• Horst Klink · Rutesheim, DE

Key dates

• Filing date: Feb 16, 1990
• Grant date: Oct 22, 1991
• Expiry date: Feb 16, 2010

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N13/009
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An exhaust system of an internal-combustion engine is provided with a small catalyst as a starting catalyst and wherein this small catalyst is longitudinally movably or pivotedly movable into or out of the exhaust pipe of an internal-combustion engine. When exhaust gas flow from the engine is strong, the catalyst is moved into a dead space lateral chamber with respect to the flow in the exhaust pipe.