Ford Global Technologies, LLC

University of Michigan

Daniel Joseph Styles

Gopichandra Surnilla

James Alfred Hilditch

Eric Matthew Kurtz

Brad Alan Boyer

Gregory McConville

Michael Howard Shelby

Joseph Norman Ulrey

Chris Paul Glugla

Paul Joseph Tennison

Michiel Jacques Van Nieuwstadt

Michael James Uhrich

Jason Brian Martz

Keith Michael Plagens

Karen Elizabeth Maceroni

Xiaogang Zhang

Brien Lloyd Fulton

Daniel William Kantrow

Thomas George Leone

Michael Damian Czekala

Timothy Joseph Clark

Imtiaz Ali

James Randall Leiby

Neal James Corey

David Karl Bidner

Julia Helen Buckland

Eric Warren Curtis

James Ervin

Todd Anthony Rumpsa

Liangjun Hu

Lawrence Marshall

David Born

Jack Adams

Darrell Sparks

Ralph Wayne Cunningham

Daniel A Makled

Kim Hwe Ku

John W Hoard

Karen Evelyn Bevan

Satheesh Makkapati

Mehdi Abarham

Joshua Zachary Fried

Ross Dykstra Pursifull

Jeffrey Allen Doering

Donald James Lewis

James Michael Kerns

Mrdjan J Jankovic

Stephen B Smith

Amey Y Karnik

Yan Wang

Garlan J Huberts

Robert Albert Stein

William Samuel Schwartz

Jason Aaron Lupescu

Stanley Larue Bower

Matthew John Gerhart

Dave Charles Weber

David Hanna

Christopher House

David Curtis Ives

David Joseph Dronzkowski

Chad Allan Baker

David A May

Sathish Atluri

Lynn Aimee Chesney

Lauren M Newton

Adam Nathan Banker

Richard E Soltis

Mohannad Hakeem

William Charles Ruona

Furqan Zafar Shaikh

Brad Alan VanDerWege

Matthew Aaron Younkins

Steven Wooldridge

Rick L Williams

Freeman Carter Gates

Mark Michael Madin

John Erik Mikael Hellstrom

Christopher Oberski

Keith D Miazgowicz

Robert Hornblower Meyer

Kristofor Robert Norman

Frank M Korpics

Timothy Webb

Ahsanul Karim

Norbert Andreas Schorn

Norman Hiam Opolsky

Christopher Polonowski

Ivan M Lazich

Joseph Patrick Whitehead

Craig Alan Smith

Kevin Chen

Patrick Sexton

August Thomas Vaught

David Currie

Anthony William Hudson

Wayne Paul Woodside

Christopher Cowland

Christopher Bernard Trombetta

Curtis Michael Bauer

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 heating an emission control device are provided. In one example, a method for a vehicle comprises during an engine cold start, heating an emission control device of the engine using a dual heat exchanger to heat secondary air and cool exhaust gas, and further heat secondary air with an electric heater. The method further comprises directing the heated secondary air to each exhaust runner of the engine via individual air injectors to mix with exhaust gas. In this way, an improved mixture of air and exhaust reduces catalyst light-off time and increases conversion efficiency, thereby reducing hydrocarbon emissions during engine cold start.

Methods and systems for reducing hydrocarbon emissions

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

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

An engine system includes an engine having an intake manifold, a turbocharger having a compressor, and an exhaust gas recovery (EGR) mixer coupled between the compressor and the intake manifold. The EGR mixer includes a central air duct having a central axis, an annular ring circumscribing the central duct and having an inlet connectable to an EGR system and an outlet in fluid communication with the central air duct, and a vane assembly disposed in the central air duct upstream of the annular ring and having a plurality of vanes configured to swirl air passing therethrough.

Exhaust gas recovery system with high-pressure mixer

Methods and systems are provided for cylinder deactivation to reduce tailpipe emissions and increase exhaust temperature. In one example, a method may include operating a first set of cylinders in a first combustion cycle over modified eight strokes and a second set of cylinders in a second combustion cycle over modified four strokes. Each cylinder in the first set of cylinders may be selectively deactivated via a variable displacement engine (VDE) mechanism while each cylinder in the second set of cylinders may be selectively deactivated via an active decompression technology (ADT) mechanism.

Methods and systems for reducing engine exhaust emissions

Methods and systems are provided for to methods and systems for distributing exhaust gas to a turbine, a turbocharger bypass, and an exhaust gas recirculation (EGR) line via a valve. In one example, a method may include selectively flowing exhaust gas, via a valve coupled to an exhaust passage, to one or more of an exhaust gas recirculation (EGR) passage, an exhaust turbine, and an exhaust catalyst via a bypass passage without flowing through the exhaust turbine based on engine operating conditions.

Method and system for distribution of exhaust gas

Methods and systems are provided for directing the flow of recirculated exhaust gas (EGR) delivered to an EGR cooler. In one example, a method includes flowing EGR through an EGR cooler positioned in an EGR passage, the EGR cooler comprising a bypass passage, a first cooler core flow path, and a second cooler core flow path, and adjusting a valve of the EGR cooler to selectively block flow of the EGR through the bypass passage, the first cooler core flow path, and the second cooler core flow path. In this way, fouling of the EGR cooler may be reduced.

Systems and methods for a valve in a dual-core EGR cooler

An exhaust gas recirculation system for an engine includes a first conduit, a second conduit, and a mixer. The first conduit is configured to direct a first portion of exhaust gas away from a first exhaust manifold. The second conduit is configured to direct a second portion of exhaust gas away from a second exhaust manifold. The mixer is configured to direct the first and second portions of the exhaust gas from the first and second conduits, respectively, into an engine air intake system. The mixer is arranged to segregate the first and second portions of the exhaust gas while the first and second portions of the exhaust gas are within the mixer. The mixer forms a ring about a perforated tube. The mixer is configured to direct the first and second portions of the exhaust gas into the air intake system via the perforated tube.

Exhaust gas recirculation system for a vehicle engine

Methods and systems are provided for a branch communication valve in a twin turbocharger system. A branch communication valve may be positioned adjacent to a dividing wall separating a first scroll and a second scroll of the twin turbocharger. In an open position, the branch communication valve increases fluid communication between the first scroll and the second scroll and in a closed position, the branch communication valve decreases fluid communication between the first scroll and the second scroll.

Branch communication valve for a twin scroll turbocharger

Methods and systems are provided for improving catalyst function during an engine cold-start. In one example, at key-off, a duration elapsed till a subsequent key-on is predicted based on drive history and spatial awareness data. Then, based on the duration, an identity and order of operating one or more catalyst heating devices is selected.

Method and system for catalyst temperature control

Growing community of inventors

Canton, MI, United States of America

Daniel Joseph Styles