System and method for regenerating a particulate filter accompanied by a catalyst

US8336300B2 · kind B2 · utility

Assignee

• Ford Global Technologies, LLC · US

Inventors

• Jeffrey Scott Hepburn · Dearborn, US
• Helmut Hans Ruhland · Eschweiler, DE
• Moritz Klaus Springer · Hagen, DE
• Thomas Lorenz · Chesterfield, US
• Georg Louven · Neuwied, DE

Key dates

• Filing date: Dec 15, 2009
• Grant date: Dec 25, 2012
• Expiry date: Apr 1, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical 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.