Patent · US Active

Exhaust system for internal combustion engines with particle filter

US8783020B2 · kind B2 · utility

4Cited by

6References

18Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Moritz Klaus Springer · Hagen, DE
Helmut Hans Ruhland · Eschweiler, DE
Thomas Lorenz · Chesterfield, US
Georg Louven · Neuwied, DE
Jens Dunstheimer

Key dates

Filing date	Oct 11, 2011
Grant date	Jul 22, 2014
Priority date	—
Expiry date	Apr 25, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

An exhaust system for an internal combustion engine is provided. The system comprises an exhaust tract which is connectable to an outlet side of the internal combustion engine, at least one catalytic converter arranged in the exhaust tract downstream of the engine, a particle filter downstream of the at least one catalytic converter, and a secondary-air inlet port provided in the exhaust tract upstream of the particle filter for introducing compressed secondary air into the exhaust tract via at least one flutter valve. In this way, additional oxygen may be supplied to the particulate filter to perform filter regeneration.

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