Variable exhaust system for V-engines II

US5956949A · kind A · utility

Assignee

• Ford Global Technologies, LLC · US

Inventors

• Thomas Mayer · Reutlingen, DE
• Patrick Phlips · Cologne, DE
• Klemens Grieser · Langenfeld, DE
• Heinrich Z Krzykowski · Herdecke, DE

Key dates

• Filing date: Jul 9, 1998
• Grant date: Sep 28, 1999
• Expiry date: Jul 9, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An exhaust system is provided for a motor vehicle having a V-type internal combustion engine forming two banks of cylinders. The exhaust system includes first and second exhaust manifolds, the first manifold connected to the first cylinder bank and the second manifold connected to second cylinder bank. A pair of catalytic converters communicate exhaust from the exhaust manifolds. An exhaust pipe communicates exhaust from each manifold. The first exhaust pipe extends from a first side of the vehicle to a second side of the vehicle. The second exhaust extends from the second side of the vehicle first side of the vehicle. A NOx trap receives exhaust from the second exhaust pipe. A third exhaust pipe communicates exhaust between the first catalytic converter and the NOx trap. The third exhaust pipe does not extend to the second side of the vehicle. A control valve selectively blocks exhaust flow through the first pipe to direct the exhaust through the third exhaust pipe.