Patent · US Expired

Gas exhaust system

US6311485A · kind A · utility

3Cited by

9References

6Claims

0Family size

Assignees

Deutsches Zentrum fuer · DE
Ford Global Technologies, LLC · US

Inventors

Manfred Becker · Leverkusen, DE
Bernhard Hoffschmidt · Wittlich, DE
Josef Meurer · Troisdorf, DE

Key dates

Filing date	Apr 27, 2000
Grant date	Nov 6, 2001
Priority date	—
Expiry date	Apr 27, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S264/48
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The gas exhaust system, intended for an internal combustion engine, has a plurality of connectors leading to an exhaust manifold. The exhaust vent from the exhaust manifold is used as a feed gas for a catalyst. In order to install said catalyst as close as possible to the exhaust manifold, it is suggested by the invention that a mixer be provided inside the catalyst housing. The mixer enables the exhaust gas stream arriving at the catalyst via the feed pipe to be homogenized in time and geometry and prevents catalyst elements from being damaged by a non-homogeneous gas stream. The mixer also allows for the unburnt air-fuel mixture to settle inside instead of burning in catalyst elements, thereby preventing the latter from being damaged by suddenly burning deposits.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.