Ford Global Technolgoies, LLC

Ford Motor Company Limited

Gm Global Technolgoy Operations, Inc.

Robert Walter McCabe

Lifeng Xu

George Wade Graham

Jeffrey Scott Hepburn

Carolyn Parks Hubbard

Harendra S Gandhi

Gopichandra Surnilla

Hungwen Jen

Thomas George Leone

David Karl Bidner

Helmut Ruhland

Moritz Klaus Springer

Thomas Lorenz

Georg Louven

Eva Thanasiu

Christian Thomas Goralski, Jr

Joseph Robert Theis

Brendan Patrick Carberry

John W Hoard

Karen Marie Adams

Ross Dykstra Pursifull

Joseph Norman Ulrey

James Michael Kerns

Michael Howard Shelby

Haren S Gandhi

Albert Nazipovich Chigapov

Gang Guo

Clifford Norman Montreuil

Raymond L Willey

Alexei Dubkov

James E Riley

Nian Xiao

Thomas E Bazil

Woosang Chun

Albert Nazipovich Shigapov

Hans P Creutz

William R Adam

Rengin K Usmen

William Charles Ruona

Diana D Brehob

Jialin Yang

William L Watkins

Jason Aaron Lupescu

Mordecai Shelef

Justin Anthony Ura

Richard Eugene Baker

William Lewis Henderson Watkins

Harendra Sakarlal Gandhi

Patricia J Mitchell

David F McCready

Philip V Mohan

Robert A Potter

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.

Method for controlling fuel of a spark ignited engine while regenerating a particulate filter

A low-temperature catalyst is provided for reducing cold-start hydrocarbon emissions. The catalyst comprises a platinum group metal impregnated onto an oxygen storage material. The catalyst may be used alone or may be included in a hydrocarbon trap containing a hydrocarbon adsorption material therein. The catalyst/hydrocarbon trap is positioned in the exhaust system of a vehicle downstream from a close-coupled catalyst such that the exhaust temperature at the catalyst location does not exceed 850&#xb0; C. during normal vehicle operation and when combined with a hydrocarbon adsorption material in a trap, the exhaust temperature does not exceed 700&#xb0; C.

Low temperature catalyst/hydrocarbon trap

Fuel control for spark ignited engine having a particulate filter system

Embodiments are described to improve the durability of a lean NOaftertreatment system. According to one embodiment of the present invention an air injection system is used to inject air continuously into the exhaust system between the upstream three-way catalyst and the downstream selective catalytic reduction (SCR) catalyst when the engine is operating at stoichiometric or rich air/fuel ratios and the exhaust temperatures are above a calibratable level (e.g., 700&#xb0; C.). In another embodiment, an oxidation catalyst is positioned downstream of the air injection point to prevent exothermic reactions from occurring on the SCR. In another embodiment, the reductant for the SCR is generated in-situ. In yet another embodiment, a diverter valve with a reduction catalyst in a bypass arm is utilized to bypass the SCR during high load conditions.

Air-injection system to improve effectiveness of selective catalytic reduction catalyst

Embodiments are described to improve the durability of a lean NOaftertreatment system. According to one embodiment of the present invention an air injection system is used to inject air continuously into the exhaust system between the upstream three-way catalyst and the downstream selective catalytic reduction (SCR) catalyst when the engine is operating at stoichiometric or rich air/fuel ratios and the exhaust temperatures are above a calibratible level (e.g., 700&#xb0; C.). In another embodiment, an oxidation catalyst is positioned downstream of the air injection point to prevent exothermic reactions from occurring on the SCR. In another embodiment, the reductant for the SCR is generated in-situ. In yet another embodiment, a diverter valve with a reduction catalyst in a bypass arm is utilized to bypass the SCR during high load conditions.

Air-injection system to improve effectiveness of selective catalytic reduction catalyst for gasoline engines

The reduction of a NOx trap upon engine shutdown is disclosed. One disclosed embodiment comprises adjusting a timing of creating a reductive environment in the exhaust conduit upstream of the lean NOx trap based upon the determined engine stop position. The creation of a reductive environment in the exhaust conduit upstream of the lean NOx trap may help to at least partially reactivate the lean NOx trap during engine shutoff.

Reduction of NOx trap at engine shutoff

A method for operating an engine with a fuel reformer is presented. In one embodiment a method for operating an engine by injecting a gaseous fuel and a liquid fuel to at least an engine cylinder is presented. The method may prioritize the injection of the gaseous fuel in response to an amount of gaseous fuel stored in a fuel storage tank.

Method for operating a vehicle with a fuel reformer

Various systems and methods are described for a controlling a flow of reformate fuel in a fuel system which includes a reformer and a storage tank coupled to an engine in a vehicle. The system includes a pump located between the reformer and the storage tank that is selectively operated in order to reduce parasitic losses on the system.

Pump control for reformate fuel storage tank

System and method for regenerating a particulate filter

A method of providing an automobile exhaust catalyst composition. The method includes acidifying a support composition with a conjugate base oxide of an inorganic acid having a Ka to obtain an acidified support exhaust catalyst composition. The support composition includes a combination of a cerium-containing oxide compound and non-cerium-containing compound selected from the group consisting of alkali metal containing compounds, alkaline-earth metal containing compounds and combinations thereof.

[object Object]

A diesel exhaust aftertreatment system and method are provided. The system includes a lean NOtrap for reducing NOand a transition metal-exchanged zeolite booster catalyst positioned downstream from the lean NOtrap for further reducing NO. The lean NOtrap includes a NOadsorbent material and one or more platinum group metals, and has a platinum group metal loading of less than about 90 g/ft. The aftertreatment system provides high NOconversion over a broad temperature range without the use of ammonia as a major reductant.

Exhaust aftertreatment system and method of treating exhaust gas

Growing community of inventors

Novi, MI, United States of America

Robert Walter McCabe