Patent · US Active

System and method for regenerating a particulate filter

US8341947B2 · kind B2 · utility

26Cited by

7References

26Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Jeffrey Scott Hepburn · Dearborn, US
David Karl Bidner · Livonia, US
Helmut Hans Ruhland · Eschweiler, DE
Moritz Klaus Springer · Hagen, DE
Thomas Lorenz · Chesterfield, US
Georg Louven · Neuwied, DE
Carolyn Parks Hubbard · Canton, US
Robert Walter McCabe · Novi, US
Eva Thanasiu · Trenton, US
James Michael Kerns · Trenton, US
Nian Xiao · Baton Rouge, US

Key dates

Filing date	Dec 15, 2009
Grant date	Jan 1, 2013
Priority date	—
Expiry date	Apr 8, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst.

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