Ford Global Technologies, LLC

Eric Matthew Kurtz

Daniel Joseph Styles

Paul Joseph Tennison

Jason Brian Martz

Brien Lloyd Fulton

Michiel Jacques Van Nieuwstadt

Daniel William Kantrow

William Charles Ruona

Gopichandra Surnilla

Jeffrey Scott Hepburn

Christopher Polonowski

Liangjun Hu

David Joseph Dronzkowski

Douglas Kuhel

Kyle Pohlkamp

David A May

Waheed Alashe

Darrell Sparks

John H Vanderslice

Eric James Kastanis

Joshua Zachary Fried

Daniel A Makled

Jianwen James Yi

Christian Winge Vigild

Daniel Roettger

Michael Hopka

Joshua Putman Styron

James Eric Anderson

Shawn Michael Spannbauer

Thomas Alan Brewbaker

Richard Eugene Baker

Sathish Atluri

Curtis Michael Bauer

Lauren M Newton

Nan Robarge

Gregory McConville

Diana D Brehob

Stephen George Russ

Eric Warren Curtis

Jialin Yang

Lifeng Xu

Leon Hu

Werner Willems

Yong-Wha Kim

David Hanna

Satheesh Makkapati

David Curtis Ives

Zhiyu Han

Patrick Brian Morgan

Evangelos Karvounis

Daniel Joseph Rinkevich

Bradley David Opperman

Martin Johannes Atzwanger

Clayton Mikush

Christopher Cundy

Andrew Lauri

Jonathan Finchum

Jianwen James Wi

Christian Winge Viglid

Jonathan James Pilbeam

Methods and systems for reducing emissions of an internal combustion engine are described. In one example, a combustor is applied post shutdown to purge stored NOx from a passive NOx absorber to prepare for a subsequent engine start. The trapped NOx is subsequently reduced via a selective catalytic reduction catalyst.

Engine cold start system and method

Methods and systems for reducing emissions of an internal combustion engine are described. In one example, an electric heater and a selective reduction catalyst are positioned in a passage downstream of a combustor where urea may be injected to the selective reduction catalyst to reduce NOx emissions that may be generated by the combustor.

System and method for engine cold start

Methods and systems for reducing emissions of an internal combustion engine are described. In one example, an electric heater and a passive NOx absorber or other emissions control device are positioned in a passage downstream of a combustor so as to process emissions from the combustor before an engine is started.

Methods and systems are provided for re-combustion of exhaust in a cylinder of a multi-cylinder engine in order to increase the temperature of the exhaust for enhancing catalytic conversion within the multi-cylinder engine. In one example, a method may include expelling combusted gases from the cylinder into an intake manifold via an intake valve during an exhaust stroke, in order to rebreathe in the combusted gases from the intake manifold via the intake valve in a subsequent intake stroke.

Methods for re-combustion in engines

Methods and systems for improving NOx conversion efficiency of a selective catalytic reduction catalyst are described. In one example, an amount of NHstored in a SCR is adjusted after stopping an engine so that a desired amount of NHmay be stored within the SCR when the engine is restarted.

System and method for dosing a selective catalytic reduction catalyst

Methods and systems are provided for controlling a catalyst temperature. In one example, a method includes throttling in response to the catalyst temperature exceeding a threshold temperature. The throttling includes adjusting an intake throttle position to a more closed position. The throttling further includes increasing a turbine work extraction via adjusting a position of a plurality of turbine vanes to decrease a turbine outlet temperature.

Methods and systems for turbine outlet temperature control

Methods and systems are provided for a cooler. In one example, a system includes a dual poppet valve assembly arranged in a primary chamber of the cooler. The cooler further includes a plurality of ribs arranged between the dual poppet valve assembly and a plurality of tubes of the cooler. The ribs configured to distribute EGR to the plurality of tubes.

Systems for a cooler

Methods and systems are provided for controlling an EGR valve and VGT vanes during engine braking. In one example, a method may include during an engine braking event in an engine, coordinating adjustments of both of a cross-sectional area of an inlet of a turbine and an opening of a valve of an exhaust gas recirculation (EGR) system to achieve a desired braking power and to maintain an exhaust system temperature above a threshold temperature during the engine braking event.

Method and systems for engine braking via coordinated EGR and VGT actuation

Methods and systems are provided for maintaining a temperature of exhaust gases of an engine within a temperature range at which catalytic conversion is most efficient. In one example, a method for controlling a temperature of exhaust gases entering a Selective Catalytic Reduction (SCR) system for an engine comprises delivering pressurized air into the exhaust gases upstream of the SCR system, the pressurized air cooled by an air cooler; and adjusting a degree of pressurization by adjusting operation of a turbocharger pressurizing the pressurized air. In one embodiment, the air cooler may be a charge air cooler of a primary turbocharger of the engine, which may flow pressurized air both to the engine and to the SCR system. In other embodiments, the air may be pressurized by an air pump or a secondary dilution turbocharger, and cooled by a secondary charge air cooler.

System for thermal management of engine exhaust

Methods and systems are provided for a turbocharger. In one example, a method may include bypassing exhaust gases flowing to the turbocharger in response to a catalyst temperature being less than a threshold temperature. The bypassing includes opening a bypass valve and adjusting a position of one or more turbine nozzle vanes.

Methods and systems for turbine bypass

Methods and systems are provided for expediting exhaust catalyst light-off prior to an anticipated engine cold-start event. In one example, a method may include, in anticipation of an engine cold-start, preemptively operating an electric booster and routing compressed air to the catalyst to increase a temperature of the exhaust catalyst while maintaining the engine inactive.

Methods and systems for engine exhaust catalyst operations

An exhaust gas recirculation system for an engine includes a conduit, and a U-shaped exhaust gas mixer. The conduit is configured to direct an exhaust gas away from an exhaust manifold. The U-shaped exhaust gas mixer is configured to direct exhaust gas from the conduit and into an engine air intake system. The U-shaped exhaust gas mixer is arranged with a pre-mixing cavity configured to disperse the exhaust gas and entraining the exhaust gas into an intake air flow prior to distribution into an intake manifold of an engine.

EGR pre-mixer for improved mixing

Methods and systems are provided for a turbocharger. In one example, a method may include flowing bleed air to control a catalyst temperature. The bleed air is directed from a bleed port of a compressor of an engine system.

Systems and methods for turbocharger

An exhaust gas recirculation system for an engine includes a conduit, and a mixer. The conduit is configured to direct to direct exhaust gas away from an exhaust manifold. The mixer is configured to direct exhaust gas from the conduit, into an engine air intake system. The mixer is arranged with an exhaust gas mixing volute chamber having a plurality of mixing vanes configured to direct the exhaust gas into a central intake airflow upstream of an intake manifold.

Annular ring mixer with vanes

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Dearborn, MI, United States of America

Eric Matthew Kurtz