Patent · US Active

System and method for regenerating a particulate filter for a direct injection engine

US8359839B2 · kind B2 · utility

11Cited by

6References

19Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Michiel J. Van Nieuwstadt · Ann Arbor, US
Helmut Hans Ruhland · Eschweiler, DE
Moritz Klaus Springer · Hagen, DE
Thomas Lorenz · Chesterfield, US
Georg Louven · Neuwied, DE
Jan Harmsen · Simpelveld, NL

Key dates

Filing date	Nov 17, 2009
Grant date	Jan 29, 2013
Priority date	—
Expiry date	Nov 28, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for regenerating a particulate filter is disclosed. In one example, oxygen is pumped from the intake system of a direct injection turobocharged gasoline engine to the exhaust system by a compressor. The oxygen is introduced to a particulate filter at a location upstream from the particulate filter. In this way, regeneration of a particulate filter may be accomplished without disturbing the chemistry of a three-way catalyst located in the exhaust system upstream of the particulate filter.

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