Patent · US Active

Soot burning method for particulate filters

US9217345B2 · kind B2 · utility

0Cited by

11References

20Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Robert Ukropec · Aachen, DE
Alexey A. Dubkov · Aachen, DE
Christoph Boerensen · Aachen, DE
Elmar Riesmeier · Aachen, DE
Mario Balenovic · Waalre, NL
Brendan Patrick Carberry · Aachen, DE

Key dates

Filing date	Jun 20, 2013
Grant date	Dec 22, 2015
Priority date	—
Expiry date	Aug 8, 2033

Classification

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

Abstract

Methods and systems are provided for regenerating a particulate filter in an engine exhaust, where burning of soot is initiated by introducing additional oxygen into the exhaust gas upstream of the particulate filter where an exhaust temperature exceeds a threshold, a soot burn rate controlled by adjusting pulsing of the additional oxygen. Further, the pulsing of the additional oxygen is introduced via a high-pressure EGR passage during boosted engine conditions.

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