Johnson Matthey Public Limited Company

Johnson Matthey Inc.

David Bergeal

Paul Richard Phillips

Andrew Francis Chiffey

Francois Moreau

Daniel Hatcher

John Benjamin Goodwin

Raj Rao Rajaram

Agnes Suganya Raj

Cathal Francis Prendergast

Gavin Michael Brown

Hai-Ying Chen

Paul Joseph Andersen

Martyn Vincent Twigg

Ralf Dotzel

Daniel Swallow

Rainer Leppelt

Julian Peter Cox

James Leeland

Todd Howard Ballinger

Peter Johnston

Jörg Werner Münch

James Alexander Wylie

Hubert Schedel

Matthew O'Brien

Duncan John William Winterborn

Hsiao-Lan Chang

Wolfgang Strehlau

Mark Walton

Thilanka Wijemanne

Valerie Houel

Andrew Izzard

Nicholas Dunkley

Marie Feuerstein

Agnes Raj

Julian Cox

Todd Ballinger

A system comprising (i) a vehicular compression ignition engine comprising one or more engine cylinders and one or more electronically-controlled fuel injectors therefor; (ii) an exhaust line for the engine comprising: a first emissions control device comprising a first honeycomb substrate, which comprises a hydrocarbon adsorbent component; and a second emissions control device comprising an electrically heatable element and a catalysed second honeycomb substrate, which comprises a rhodium-free platinum group metal comprising platinum, wherein the electrically heatable element is disposed upstream from the catalysed second honeycomb substrate and wherein both the electrically heatable element and the catalysed second honeycomb substrate are disposed downstream from the first honeycomb substrate; a third emissions control device, which is a third honeycomb substrate comprising an ammonia-selective catalytic reduction catalyst disposed downstream from the second emissions control device; and one or more temperature sensors located: upstream of the electrically heatable element and/or upstream of the first honeycomb substrate; and between the electrically heatable element and the catalysed second honeycomb substrate; and (iii) an engine control unit comprising a central processing unit pre-programmed, when in use, to control both a heating activation state of the electrically heatable element; an injection timing strategy of the one or more electronically-controlled fuel injector to increase the temperature of at least the first emissions control device following key-on/cold-starting a vehicle comprising the system, wherein the one or more temperature sensors are electrically connected to the engine control unit for feedback control in the system.

System comprising vehicular compression ignition engine and an emissions control device comprising an electrically heatable element

A system () comprising (i) a vehicular compression ignition engine () comprising one or more engine cylinders and one or more electronically-controlled fuel injectors therefor; (ii) an exhaust line () for the engine comprising: a first emissions control device () comprising a first honeycomb substrate, which comprises a hydrocarbon adsorbent component; and a second emissions control device () comprising an electrically heatable element () and a catalysed second honeycomb substrate (), which comprises a rhodium-free platinum group metal (PGM) comprising platinum, wherein the electrically heatable element () is disposed upstream from the catalysed second honeycomb substrate () and wherein both the electrically heatable element () and the catalysed second honeycomb substrate () are disposed downstream from the first honeycomb substrate; a third emissions control device (), which is a third honeycomb substrate comprising an ammonia-selective catalytic reduction catalyst disposed downstream from the second emissions control device (); and one or more temperature sensors located: upstream of the electrically heatable element and/or upstream of the first honeycomb substrate; and between the electrically heatable element () and the catalysed second honeycomb substrate (); and (iii) an engine control unit () comprising a central processing unit pre-programmed, when in use, to control both a heating activation state of the electrically heatable element (); an injection timing strategy of the one or more electronically-controlled fuel injector to increase the temperature of at least the first emissions control device following key-on/cold-starting a vehicle comprising the system, wherein the one or more temperature sensors are electrically connected to the engine control unit for feedback control in the system.

An exhaust system comprising: a NOx storage catalyst; an electric heating element; and a NOx reduction catalyst wherein the heating element is located downstream of the NOx storage catalyst.

In-exhaust electrical element for NOx storage catalyst and SCR systems

An exhaust system for treating an exhaust gas produced by a lean burn engine comprising: (i) a NOabsorber catalyst comprising a molecular sieve catalyst disposed on a substrate, wherein the molecular sieve catalyst comprises a noble metal and a molecular sieve, wherein the molecular sieve contains the noble metal; (ii) means for introducing hydrocarbons into the exhaust gas; and (iii) a lean NOtrap; wherein the NOabsorber catalyst is upstream of both the means for introducing hydrocarbons into the exhaust gas and the lean NOtrap.

Exhaust system comprising a passive NOadsorber

Systems and methods of the present invention related to an exhaust gas purification system comprising: (a) a first injector for injecting ammonia or a compound decomposable to ammonia into the exhaust gas; (b) a diesel particulate filter including an inlet and an outlet, wherein the filter includes a selective catalyst reduction (SCR) catalyst and an oxidation catalyst; (c) a second injector for injecting ammonia or a compound decomposable to ammonia into the exhaust gas, located downstream of the filter; and (d) a downstream catalyst comprising a selective catalytic reduction catalyst, located downstream of the second injector.

Exhaust system including SCRF catalyst with oxidation zone

An exhaust system for a compression ignition engine comprising an oxidation catalyst for treating carbon monoxide (CO) and hydrocarbons (HCs) in exhaust gas from the compression ignition engine, wherein the oxidation catalyst comprises: a platinum group metal (PGM) component selected from the group consisting of a platinum (Pt) component, a palladium (Pd) component and a combination thereof; an alkaline earth metal component; a support material comprising a modified alumina incorporating a heteroatom component; and a substrate, wherein the platinum group metal (PGM) component, the alkaline earth metal component and the support material are disposed on the substrate.

Oxidation catalyst for treating the exhaust gas of a compression ignition engine

A method of making a supported catalytic species comprising an alloy of at least two metals, comprises the steps of:

Catalyst and method of preparation

An oxidation catalyst for treating an exhaust gas from a compression ignition engine, which oxidation catalyst comprises: a first washcoat region comprising platinum (Pt) and a first support material, wherein the first washcoat region is substantially free of a hydrocarbon adsorbent; a second washcoat region comprising platinum (Pt), palladium (Pd) and a second support material, wherein the second washcoat region has a ratio by mass of platinum (Pt) to palladium (Pd) of 4:1 to 1:1; a hydrocarbon adsorbent; and a substrate; wherein the first washcoat region is arranged to contact inlet exhaust gas before the hydrocarbon adsorbent, and the first washcoat region is arranged to contact inlet exhaust gas before the second washcoat region.

Oxidation catalyst for a compression ignition engine

A catalyzed soot filter comprising an oxidation catalyst for treating carbon monoxide (CO) and hydrocarbons (HCs) in exhaust gas from a compression ignition engine disposed on a filtering substrate, wherein the oxidation catalyst comprises: a platinum group metal (PGM) component selected from the group consisting of a platinum (Pt) component, a palladium (Pd) component and a combination thereof; an alkaline earth metal component; a support material comprising a modified alumina incorporating a heteroatom component.

Catalysed soot filter for treating the exhaust gas of a compression ignition engine

An on-board diagnostics system for an exhaust system of an internal combustion engine is disclosed. The system comprises a catalyzed substrate having a catalyzed region and an uncatalyzed region, a first sensor, and a second sensor. The first sensor is located within the catalyzed region of the catalyzed substrate and the second sensor is located within the uncatalyzed region of the catalyzed substrate. A method for on-board diagnostics of the catalyzed substrate is also disclosed.

On-board diagnostics system for catalyzed substrate

A vehicle comprises a compression ignition engine provided with engine management means and having a catalyst for exhaust gas aftertreatment, wherein the engine management means is configured, when in use, to detect idle conditions and upon determining that idle conditions exist, stops the engine entirely, wherein the catalyst comprises a honeycomb substrate monolith coated with a catalytic washcoat comprising one or more precious metal, which catalytic washcoat being arranged between a first, upstream washcoat zone and a second, downstream washcoat zone, wherein a thermal mass in the first washcoat zone is different from a thermal mass in the second washcoat zone and wherein a washcoat layer in the first, upstream washcoat zone is substantially contiguous with a washcoat layer in the second, downstream washcoat zone.

Exhaust system for a vehicle having a 'stop-start' compression ignition engine

An oxidation catalyst for treating an exhaust gas produced by a combustion engine, wherein the oxidation catalyst comprises a substrate and a catalyst layer, wherein the catalyst layer comprises: a first support material; a first noble metal; and a second noble metal; wherein the catalyst layer is disposed on a surface of the substrate, and the catalyst layer has a non-uniform distribution of the first noble metal in a direction perpendicular to the surface of the substrate. The oxidation catalyst can be used to oxidize carbon monoxide (CO), hydrocarbons (HCs) and also oxides of nitrogen (NO) in such an exhaust gas.

Oxidation catalyst for a combustion engine

An apparatus is disclosed. The apparatus comprises a lean-burn internal combustion engine, engine management means and an exhaust system for treating exhaust gas of the engine. The exhaust system comprises a first oxidation catalyst disposed on a first honeycomb monolith substrate. The first oxidation catalyst comprises platinum supported on a first metal oxide support comprising at least one reducible oxide, and is substantially free of alkali metals and alkaline earth metals. The engine management means is arranged, when in use, intermittently to modulate the lambda composition of the exhaust gas entering the first oxidation catalyst to a rich lambda composition.

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Ware, United Kingdom

David Bergeal