Patents by Inventor Daniel Swallow
Daniel Swallow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20170009623Abstract: A catalyst for storing nitrogen oxides (NOx) in an exhaust gas from a lean burn engine comprising a NOx storage material and a substrate, wherein the NOx storage material comprises a NOx storage component and an NO oxidation promoter on a support material, wherein the NO oxidation promoter is manganese or an oxide, hydroxide or carbonate thereof.Type: ApplicationFiled: July 8, 2016Publication date: January 12, 2017Inventors: Andrew ARMITAGE, Andrew Francis CHIFFEY, John Benjamin GOODWIN, James LEELAND, Nuria LASTRA-CALVO, Francois MOREAU, Paul Richard PHILLIPS, Stuart David REID, Daniel SWALLOW, David XUEREB
-
Patent number: 9527031Abstract: An exhaust system (10) for a lean-burn internal combustion engine (12) comprises a first substrate monolith (16) comprising a catalyst for oxidizing nitric oxide (NO) comprising a catalytic oxidation component followed downstream by a second substrate monolith (18) which is a wall-flow filter having inlet channels and outlet channels, wherein the inlet channels comprise a NOx absorber catalyst (20) and the outlet channels comprise a catalyst for selective catalytic reduction (22) of nitrogen oxides with nitrogenous reductant.Type: GrantFiled: May 1, 2014Date of Patent: December 27, 2016Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Neil Robert Collins, Paul Richard Phillips, Daniel Swallow
-
Patent number: 9486791Abstract: A NOx trap, and its use in an exhaust system for internal combustion engines, is disclosed. The NOx trap comprises a substrate and three layers on the substrate. The first layer comprises a first platinum group metal, a first NOx storage component, and a first support; the second layer comprises a second platinum group metal, a second NOx storage component, and a second support; and the third layer comprises rhodium and a third support. The platinum group metal loading in the first layer is from 1 to 40 percent of the platinum group metal loading in the second layer. In addition, the first NOx storage component and the second NOx storage component are the same, and the first support and the second support are the same. The NOx trap is less prone to deactivation over numerous desulfation/NOx trap regeneration cycles.Type: GrantFiled: December 19, 2012Date of Patent: November 8, 2016Assignee: Johnson Matthey Public Limited CompanyInventors: Daniel Swallow, Paul Richard Phillips
-
Publication number: 20160047286Abstract: An exhaust system for treating an exhaust gas from an internal combustion engine is disclosed. The system comprises a modified lean NO trap (LNT), a urea injection system, and an ammonia-selective catalytic reduction catalyst. The modified LNT comprises a first layer and a second layer. The first layer comprises a NO adsorbent component and one or more platinum group metals. The second layer comprises a diesel oxidation catalyst zone and an NO oxidation zone. The diesel oxidation catalyst zone comprises a platinum group metal, a zeolite, and optionally an alkaline earth metal. The NO oxidation zone comprises a platinum group metal and a carrier. The modified LNT stores NO at temperatures below about 200° C. and releases at temperatures above about 200° C. The modified LNT and a method of using the modified LNT are also disclosed.Type: ApplicationFiled: August 7, 2015Publication date: February 18, 2016Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Daniel SWALLOW, Stuart David REID, Paul Richard PHILLIPS, James Alexander WYLIE
-
Publication number: 20150375221Abstract: 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.Type: ApplicationFiled: September 4, 2015Publication date: December 31, 2015Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: David BERGEAL, Andrew Francis CHIFFEY, Marie FEUERSTEIN, Paul Richard PHILLIPS, Wolfgang STREHLAU, Daniel SWALLOW, James WYLIE
-
Patent number: 9140167Abstract: 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.Type: GrantFiled: December 21, 2011Date of Patent: September 22, 2015Assignee: Johnson Matthey Public Limited CompanyInventors: David Bergeal, Andrew Francis Chiffey, Marie Feuerstein, Paul Richard Phillips, Wolfgang Strehlau, Daniel Swallow, James Wylie
-
Publication number: 20150252708Abstract: A zoned catalysed substrate monolith comprises a first zone and a second zone that are arranged axially in series. The first zone comprises a platinum group metal loaded on a support and a first base metal oxide or a first base metal loaded on an inorganic oxide. The first base metal oxide is iron oxide, manganese oxide, copper oxide, zinc oxide, nickel oxide, or mixtures thereof. The first base metal is iron, manganese, copper, zinc, nickel, or mixtures thereof. The second zone comprises copper or iron loaded on a zeolite and a second base metal oxide or a second base metal loaded on an inorganic oxide. The second base metal oxide is iron oxide, manganese oxide, copper oxide, zinc oxide, nickel oxide, or mixtures thereof. The second base metal is iron, manganese, copper, zinc, nickel, or mixtures thereof. The second base metal is different from the first base metal.Type: ApplicationFiled: November 22, 2013Publication date: September 10, 2015Inventors: Gavin Michael Brown, Andrew Francis Chiffey, Paul Richard Phillips, Daniel Swallow
-
Patent number: 9114385Abstract: A NOx absorber catalyst comprising a substrate monolith coated with one or more washcoat layers and comprising a first component comprising a nitrogen oxide storage component, at least one precious metal and a dispersed rare earth oxide supported on a refractory support material, and a second component comprising a precious metal supported on a bulk reducible oxide that is substantially free of nitrogen oxide storage material, wherein the precious metal present in the second component comprises Pt, Pd or a combination of both Pt and Pd and wherein the bulk reducible oxide is an oxide, a composite oxide or a mixed oxide comprising at least one of manganese, iron, cobalt, copper, tin or cerium.Type: GrantFiled: December 21, 2011Date of Patent: August 25, 2015Assignee: Johnson Matthey Public Limited CompanyInventors: Robert James Brisley, Kenneth David Camm, Noelia Cortes Felix, Fiona-Mairead McKenna, Paul James Millington, Elizabeth Hazel Mountstevens, Daniel Swallow
-
Publication number: 20150202600Abstract: An oxidation catalyst for treating an exhaust gas from a diesel engine, which oxidation catalyst comprises: a first washcoat region comprising a first platinum group metal (PGM), a first support material and a NOx storage component; a second washcoat region comprising platinum (Pt), manganese (Mn) and a second support material; and a substrate having an inlet end and an outlet end.Type: ApplicationFiled: January 23, 2015Publication date: July 23, 2015Inventors: Andrew Francis CHIFFEY, John Benjamin GOODWIN, James LEELAND, Francois MOREAU, Stuart David REID, Daniel SWALLOW
-
Publication number: 20150190793Abstract: A NOx trap, and its use in an exhaust system for internal combustion engines, is disclosed. The NOx trap comprises a substrate and three layers on the substrate. The first layer comprises a first platinum group metal, a first NOx storage component, and a first support; the second layer comprises a second platinum group metal, a second NOx storage component, and a second support; and the third layer comprises rhodium and a third support. The platinum group metal loading in the first layer is from 1 to 40 percent of the platinum group metal loading in the second layer. In addition, the first NOx storage component and the second NOx storage component are the same, and the first support and the second support are the same. The NOx trap is less prone to deactivation over numerous desulfation/NOx trap regeneration cycles.Type: ApplicationFiled: December 12, 2012Publication date: July 9, 2015Inventors: Daniel Swallow, Paul Richard Phillips
-
Publication number: 20150075140Abstract: An exhaust system for treating an exhaust gas from an internal combustion engine is disclosed. The system comprises a modified lean NOx trap (LNT), a urea injection system, and an ammonia-selective catalytic reduction (NH3-SCR) catalyst. The modified LNT comprises platinum, palladium, barium, and a ceria-containing material, and has a platinum:palladium molar ratio of at least 3:1. The modified LNT stores NOx at temperatures below about 200° C. and releases the stored NOx at temperatures above about 200° C. The urea injection system injects urea at temperatures above about 180° C.Type: ApplicationFiled: September 16, 2014Publication date: March 19, 2015Inventor: DANIEL SWALLOW
-
Publication number: 20140241950Abstract: An exhaust system (10) for a lean-burn internal combustion engine (12) comprises a first substrate monolith (16) comprising a catalyst for oxidising nitric oxide (NO) comprising a catalytic oxidation component followed downstream by a second substrate monolith (18) which is a wall-flow filter having inlet channels and outlet channels, wherein the inlet channels comprise a NOx absorber catalyst (20) and the outlet channels comprise a catalyst for selective catalytic reduction (22) of nitrogen oxides with nitrogenous reductant.Type: ApplicationFiled: May 1, 2014Publication date: August 28, 2014Applicant: Johnson Matthey Public Limited CompanyInventors: Guy Richard CHANDLER, Neil Robert COLLINS, Paul Richard PHILLIPS, Daniel SWALLOW
-
Patent number: 8795617Abstract: An exhaust system, and a catalyzed substrate for use in an exhaust system, is disclosed. The exhaust system comprises a lean NOx trap and the catalyzed substrate. The catalyzed substrate has a first zone, having a platinum group metal loaded on a support, and a second zone, having copper or iron loaded on a zeolite. The first zone or second zone additionally comprises a base metal oxide or a base metal loaded on an inorganic oxide. Also provided are methods for treating an exhaust gas from an internal combustion engine using the exhaust system. The exhaust system is capable of storing NH3 generated in rich purging, reacting the NH3 with slip NOx, controlling H2S released from NOx trap desulfation, and oxidizing slip hydrocarbons and carbon monoxide. When the catalyzed substrate is a filter substrate, it is also capable of removing soot from exhaust system.Type: GrantFiled: September 11, 2013Date of Patent: August 5, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Daniel Swallow, Andrew Francis Chiffey, Paul Richard Phillips
-
Patent number: 8756926Abstract: An exhaust system (10) for a lean-burn internal combustion engine (12) comprises a first substrate monolith (16) comprising a catalyst for oxidizing nitric oxide (NO) comprising a catalytic oxidation component followed downstream by a second substrate monolith (18) which is a wall-flow filter having inlet channels and outlet channels, wherein the inlet channels comprise a NO x absorber catalyst (20) and the outlet channels comprise a catalyst for selective catalytic reduction (22) of nitrogen oxides with nitrogenous reductant.Type: GrantFiled: July 6, 2009Date of Patent: June 24, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Neil Robert Collins, Paul Richard Phillips, Daniel Swallow
-
Publication number: 20140044630Abstract: An exhaust system for internal combustion engines, and a catalyzed substrate for use in an exhaust system, is disclosed. The exhaust system comprises a lean NOx trap and the catalyzed substrate. The catalyzed substrate has a first zone and a second zone, wherein the first zone comprises a platinum group metal loaded on a support and the second zone comprises copper or iron loaded on a zeolite. The first zone or second zone additionally comprises a base metal oxide or a base metal loaded on an inorganic oxide. Also provided are methods for treating an exhaust gas from an internal combustion engine using the exhaust system. The exhaust system is capable of storing NH3 generated in rich purging, reacting the NH3 with slip NOx from the NOx trap, controlling H2S released from NOx trap desulfation, and oxidizing slip hydrocarbons and carbon monoxide. When the catalyzed substrate is a filter substrate, it is also capable of removing soot from exhaust system.Type: ApplicationFiled: September 11, 2013Publication date: February 13, 2014Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: DANIEL SWALLOW, ANDREW FRANCIS CHIFFEY, PAUL RICHARD PHILLIPS
-
Patent number: 8641993Abstract: A NOx absorber catalyst comprising an extruded solid body comprises either: (A) 10-95% by weight of at least one binder/matrix component; and 5-90% by weight of a zeolitic molecular sieve, a non-zeolitic molecular sieve or a mixture of any two or more thereof, which catalyst comprising at least one metal comprising (a) at least one precious metal; and (b) at least one alkali metal or at least one alkaline earth metal, wherein (a) and (b) are carried in one or more coating layer(s) on a surface of the extruded solid body; or (B) 10-95% by weight of at least one binder/matrix component; and 5-80% by weight optionally stabilized ceria, which catalyst comprising at least one metal comprising (a) at least one precious metal; and (b) at least one alkali metal or at least one alkaline earth metal.Type: GrantFiled: February 1, 2011Date of Patent: February 4, 2014Assignee: Johnson Matthey Public Limited Co.Inventors: Ralf Dotzel, Rainer Leppelt, Elizabeth Hazel Mountstevens, Jörg Werner Münch, Paul Richard Phillips, Hubert Schedel, Daniel Swallow
-
Publication number: 20130340414Abstract: 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.Type: ApplicationFiled: December 21, 2011Publication date: December 26, 2013Applicant: JOHNSON MATTEY PUBLIC LIMITED COMPANYInventors: David Bergeal, Andrew Francis Chiffey, Marie Feuersein, Paul Richard Phillips, Wolfgang Strehlau, Daniel Swallow, James Wylie
-
Publication number: 20130336865Abstract: A NOx absorber catalyst comprising a substrate monolith coated with one or more washcoat layers and comprising a first component comprising a nitrogen oxide storage component, at least one precious metal and a dispersed rare earth oxide supported on a refractory support material, and a second component comprising a precious metal supported on a bulk reducible oxide that is substantially free of nitrogen oxide storage material, wherein the precious metal present in the second component comprises Pt, Pd or a combination of both Pt and Pd and wherein the bulk reducible oxide is an oxide, a composite oxide or a mixed oxide comprising at least one of manganese, iron, cobalt, copper, tin or cerium.Type: ApplicationFiled: December 21, 2011Publication date: December 19, 2013Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Robert James Brisley, Kenneth David Camm, Noelia Cortes Felix, Fiona-Mairead McKenna, Paul James Millington, Elizabeth Hazel Mountstevens, Daniel Swallow
-
Patent number: 8540952Abstract: An exhaust system, and a catalyzed substrate for use in an exhaust system, is disclosed. The exhaust system comprises a lean NOx trap and the catalyzed substrate. The catalyzed substrate has a first zone, having a platinum group metal loaded on a support, and a second zone, having copper or iron loaded on a zeolite. The first zone or second zone additionally comprises a base metal oxide or a base metal loaded on an inorganic oxide. Also provided are methods for treating an exhaust gas from an internal combustion engine using the exhaust system. The exhaust system is capable of storing NH3 generated in rich purging, reacting the NH3 with slip NOx, controlling H2S released from NOx trap desulfation, and oxidizing slip hydrocarbons and carbon monoxide. When the catalyzed substrate is a filter substrate, it is also capable of removing soot from exhaust system.Type: GrantFiled: June 18, 2012Date of Patent: September 24, 2013Assignee: Johnson Matthey Public Limited CompanyInventors: Daniel Swallow, Andrew Francis Chiffey, Paul Richard Phillips
-
Publication number: 20130149220Abstract: An exhaust system, and a catalyzed substrate for use in an exhaust system, is disclosed. The exhaust system comprises a lean NO trap and the catalyzed substrate. The catalyzed substrate has a first zone, having a platinum group metal loaded on a support, and a second zone, having copper or iron loaded on a zeolite. The first zone or second zone additionally comprises a base metal oxide or a base metal loaded on an inorganic oxide. Also provided are methods for treating an exhaust gas from an internal combustion engine using the exhaust system. The exhaust system is capable of storing NH3 generated in rich purging, reacting the NH3 with slip NOX, controlling H2S released from NO trap desulfation, and oxidizing slip hydrocarbons and carbon monoxide. When the catalyzed substrate is a filter substrate, it is also capable of removing soot from exhaust system.Type: ApplicationFiled: June 18, 2012Publication date: June 13, 2013Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: DANIEL SWALLOW, ANDREW FRANCIS CHIFFEY, PAUL RICHARD PHILLIPS