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).
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Patent number: 11365660Abstract: A NOx adsorber catalyst and its use in an emission treatment system for internal combustion engines, is disclosed. The NOx adsorber catalyst comprises a first layer consisting essentially of a support material, one or more platinum group metals disposed on the support material, and a NOx storage material.Type: GrantFiled: June 9, 2017Date of Patent: June 21, 2022Assignee: Johnson Matthey Public Limited CompanyInventors: Andrew Armitage, Desiree Duran Martin, Rebecca Maksymowicz, Paul James Millington, Paul Richard Phillips, Raj Rao Rajaram, Stuart David Reid, Daniel Swallow
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Patent number: 11358127Abstract: A NOx adsorber catalyst and its use in an emission treatment system for internal combustion engines, is disclosed. The NOx adsorber catalyst composition comprises a support material, one or more platinum group metals disposed on the support material, and a NOx storage material.Type: GrantFiled: May 4, 2017Date of Patent: June 14, 2022Assignee: Johnson Matthey Public Limited CompanyInventors: Andrew Paul Armitage, Desiree Duran-Martin, Paul James Millington, Paul Richard Phillips, Raj Rao Rajaram, Stuart David Reid, Daniel Swallow
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Publication number: 20200208557Abstract: A NOx adsorber catalyst and its use in an emission treatment system for internal combustion engines, is disclosed. The NOx adsorber catalyst comprises a first layer consisting essentially of a support material, one or more platinum group metals disposed on the support material, and a NOx storage material.Type: ApplicationFiled: February 25, 2020Publication date: July 2, 2020Inventors: Andrew ARMITAGE, Desiree DURAN MARTIN, Rebecca MAKSYMOWICZ, Paul James MILLINGTON, Paul Richard PHILLIPS, Raj Rao RAJARAM, Stuart David REID, Daniel SWALLOW
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Patent number: 10539055Abstract: 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 catalyst. The modified LNT comprises a first layer and a second layer. The first layer comprises a NOx 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 NOx 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: GrantFiled: November 3, 2017Date of Patent: January 21, 2020Assignee: Johnson Matthey Public Limited CompanyInventors: Paul Richard Phillips, Stuart David Reid, Daniel Swallow, James Alexander Wylie
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Patent number: 10532344Abstract: A NOx trap catalyst is disclosed. The NOx trap catalyst comprises a noble metal, a NOx storage component, a support, and a first ceria-containing material. The first ceria-containing material is pre-aged prior to incorporation into the NOx trap catalyst, and may have a surface area of less than 80 m2/g. The invention also includes exhaust systems comprising the NOx trap catalyst, and a method for treating exhaust gas utilizing the NOx trap catalyst.Type: GrantFiled: February 12, 2019Date of Patent: January 14, 2020Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Paul Richard Phillips, Stuart David Reid, Wolfgang Strehlau, Daniel Swallow
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Publication number: 20190176129Abstract: A NOx trap catalyst is disclosed. The NOx trap catalyst comprises a noble metal, a NOx storage component, a support, and a first ceria-containing material. The first ceria-containing material is pre-aged prior to incorporation into the NOx trap catalyst, and may have a surface area of less than 80 m2/g. The invention also includes exhaust systems comprising the NOx trap catalyst, and a method for treating exhaust gas utilizing the NOx trap catalyst.Type: ApplicationFiled: February 12, 2019Publication date: June 13, 2019Inventors: Guy Richard CHANDLER, Paul Richard PHILLIPS, Stuart David REID, Wolfgang STREHLAU, Daniel SWALLOW
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Publication number: 20190063287Abstract: 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: October 31, 2018Publication date: February 28, 2019Inventor: DANIEL SWALLOW
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Patent number: 10213768Abstract: A NOx trap catalyst is disclosed. The NOx trap catalyst comprises a noble metal, a NOx storage component, a support, and a first ceria-containing material. The first ceria-containing material is pre-aged prior to incorporation into the NOx trap catalyst, and may have a surface area of less than 80 m2/g. The invention also includes exhaust systems comprising the NOx trap catalyst, and a method for treating exhaust gas utilizing the NOx trap catalyst.Type: GrantFiled: August 31, 2017Date of Patent: February 26, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Paul Richard Phillips, Stuart David Reid, Wolfgang Strehlau, Daniel Swallow
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Patent number: 10151227Abstract: 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: GrantFiled: July 8, 2016Date of Patent: December 11, 2018Assignee: Johnson Matthey Public Limited CompanyInventors: 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
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Patent number: 10119445Abstract: 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: GrantFiled: September 16, 2014Date of Patent: November 6, 2018Assignee: Johnson Matthey Public Limited CompanyInventor: Daniel Swallow
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Publication number: 20180066554Abstract: 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 catalyst. The modified LNT comprises a first layer and a second layer. The first layer comprises a NOx 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 NOx 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: November 3, 2017Publication date: March 8, 2018Applicant: Johnson Matthey Public Limited CompanyInventors: Paul Richard PHILLIPS, Stuart David REID, Daniel SWALLOW, James Alexander WYLIE
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Publication number: 20180065113Abstract: A NOx trap catalyst is disclosed. The NOx trap catalyst comprises a noble metal, a NOx storage component, a support, and a first ceria-containing material. The first ceria-containing material is pre-aged prior to incorporation into the NOx trap catalyst, and may have a surface area of less than 80 m2/g. The invention also includes exhaust systems comprising the NOx trap catalyst, and a method for treating exhaust gas utilizing the NOx trap catalyst.Type: ApplicationFiled: August 31, 2017Publication date: March 8, 2018Inventors: Guy Richard CHANDLER, Paul Richard PHILLIPS, Stuart David REID, Wolfgang STREHLAU, Daniel SWALLOW
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Publication number: 20170356317Abstract: A NOx adsorber catalyst and its use in an emission treatment system for internal combustion engines, is disclosed. The NOx adsorber catalyst comprises a first layer consisting essentially of a support material, one or more platinum group metals disposed on the support material, and a NOx storage material.Type: ApplicationFiled: June 9, 2017Publication date: December 14, 2017Inventors: Andrew ARMITAGE, Desiree DURAN MARTIN, Rebecca MAKSYMOWICZ, Paul James MILLINGTON, Paul Richard PHILLIPS, Raj Rao RAJARAM, Stuart David REID, Daniel SWALLOW
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Patent number: 9828896Abstract: 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 catalyst. The modified LNT comprises a first layer and a second layer. The first layer comprises a NOx 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 NOx 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: GrantFiled: August 7, 2015Date of Patent: November 28, 2017Assignee: Johnson Matthey Public Limited CompanyInventors: Daniel Swallow, Stuart David Reid, Paul Richard Phillips, James Alexander Wylie
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Publication number: 20170320046Abstract: A NOx adsorber catalyst and its use in an emission treatment system for internal combustion engines, is disclosed. The NOx adsorber catalyst composition comprises a support material, one or more platinum group metals disposed on the support material, and a NOx storage material.Type: ApplicationFiled: May 4, 2017Publication date: November 9, 2017Inventors: Andrew Paul ARMITAGE, Desiree DURAN-MARTIN, Paul James MILLINGTON, Paul Richard PHILLIPS, Raj Rao RAJARAM, Stuart David REID, Daniel SWALLOW
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Publication number: 20170216770Abstract: 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: April 20, 2017Publication date: August 3, 2017Inventors: Andrew Francis CHIFFEY, John Benjamin GOODWIN, James LEELAND, Francois MOREAU, Stuart David REID, Daniel SWALLOW
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Patent number: 9636634Abstract: 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: GrantFiled: January 23, 2015Date of Patent: May 2, 2017Assignee: Johnson Matthey Public Limited CompanyInventors: Andrew Francis Chiffey, John Benjamin Goodwin, James Leeland, Francois Moreau, Stuart David Reid, Daniel Swallow
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Patent number: 9611773Abstract: A zoned catalyzed 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: GrantFiled: November 22, 2013Date of Patent: April 4, 2017Assignee: Johnson Matthey Public Limited CompanyInventors: Gavin Michael Brown, Andrew Francis Chiffey, Paul Richard Phillips, Daniel Swallow
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Patent number: 9574474Abstract: A diesel engine aftertreatment system comprises a diesel engine having an exhaust manifold and a filter substrate in direct connection with the exhaust manifold without any intervening catalyst, wherein the filter substrate comprises on its inlet side an SCR catalyst incorporating a non-coking molecular sieve.Type: GrantFiled: March 7, 2011Date of Patent: February 21, 2017Assignee: Johnson Matthey Public Limited CompanyInventor: Daniel Swallow
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Publication number: 20170043322Abstract: A NOx trap comprises components comprising at least one platinum group metal, at least one NOx storage material and bulk ceria or a bulk cerium-containing mixed oxide deposited uniformly in a first layer on a honeycombed substrate monolith, the components in the first layer having a first, upstream, zone having increased activity relative to a second, downstream zone for oxidising hydrocarbons and carbon monoxide, and a second, downstream, zone having increased activity to generate heat during a desulphation event, relative to the first zone, wherein the second zone comprises a dispersion of rare earth oxide, wherein the rare earth oxide loading in the second zone is greater than the loading in the first zone. An exhaust system for a lean burn internal combustion engine, a vehicle comprising a lean burn internal combustion engine and the exhaust system and methods of making the NOx trap are also disclosed.Type: ApplicationFiled: October 28, 2016Publication date: February 16, 2017Inventors: Guy Richard CHANDLER, Elizabeth Hazel MOUNTSTEVENS, Paul Richard PHILLIPS, Daniel SWALLOW