Patents by Inventor James Patrick Warren
James Patrick Warren 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).
-
Patent number: 9302224Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst and methods for operating such a system are disclosed. Considerable improvements in NOx conversion and soot reduction are observed even at relatively low operating temperatures.Type: GrantFiled: September 17, 2014Date of Patent: April 5, 2016Assignees: Daimler AG, HJS Emission Technology GmbH & Co. Ltd., Johnson Matthey Public Limited CompanyInventors: Anders Andreasson, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren, Georg Hüthwohl
-
Patent number: 9073010Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: GrantFiled: April 11, 2014Date of Patent: July 7, 2015Assignees: Daimler AG, HJS Emission Technology GmbH & Co. KB, Johnson Matthey Public Ltd. COInventors: Anders Andreasson, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren
-
Publication number: 20150010451Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst and methods for operating such a system are disclosed. Considerable improvements in NOx conversion and soot reduction are observed even at relatively low operating temperatures.Type: ApplicationFiled: September 17, 2014Publication date: January 8, 2015Applicants: Daimler AG, HJS Emission Technology GmbH & Co. KG, Johnson Matthey Public Ltd. Co.Inventors: Anders ANDREASSON, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren, Georg Hüthwohl
-
Publication number: 20150004068Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst and methods for operating such a system are disclosed. Considerable improvements in NOx conversion and soot reduction are observed even at relatively low operating temperatures.Type: ApplicationFiled: September 17, 2014Publication date: January 1, 2015Applicants: Daimler AG, HJS Emission Technology GmbH & Co. KG, Johnson Matthey Public Ltd. Co.Inventors: Anders ANDREASSON, Guy Richard CHANDLER, Claus Friedrich GOERSMANN, James Patrick WARREN, Georg HÜTHWOHL
-
Patent number: 8850802Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: GrantFiled: March 15, 2013Date of Patent: October 7, 2014Assignees: Daimler AG, HJS Emission Technology GmbH & Co. KG, Johnson Matthey Public Ltd. Co.Inventors: Anders Andreasson, Guy Richard Chandler, Claus Fnednch Goersman, James Patrick Warren, Georg Huethwohl
-
Publication number: 20140260200Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Inventors: Anders ANDREASSON, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren, Georg Huethwohl
-
Publication number: 20140271385Abstract: A system for NOx, reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Inventors: Anders ANDREASSON, Guy Richard CHANDLER, Claus Fnednch GOERSMAN, James Patrick WARREN, Georg HUELHWOHI
-
Publication number: 20140271423Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: ApplicationFiled: April 11, 2014Publication date: September 18, 2014Applicants: Daimler AG, HJS Emission Technology GmbH & Co. KG., Johnson Matthey Public Ltd. Co.Inventors: Anders ANDREASSON, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren
-
Patent number: 8833062Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: GrantFiled: March 15, 2013Date of Patent: September 16, 2014Assignees: Daimier AG, HJS Emission Technology GmbH & Co. KG, Johnson Matthey Public Ltd. Co.Inventors: Anders Andreasson, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren, Georg Huethwohl
-
Patent number: 8480986Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, tparticulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: GrantFiled: August 5, 2011Date of Patent: July 9, 2013Assignees: Daimler AG, HJS Fahrezeutechnik GmbH & Co. KG, Johnson Matthey Public Ltd. Co.Inventors: Anders Andreasson, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren, Georg Huethwohl
-
Patent number: 8142747Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: GrantFiled: February 27, 2009Date of Patent: March 27, 2012Inventors: Anders Andreasson, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren, Georg Huethwohl
-
Publication number: 20110286903Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: ApplicationFiled: August 5, 2011Publication date: November 24, 2011Inventors: Anders ANDREASSON, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren, Georg Huethwohl
-
Patent number: 8043590Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: GrantFiled: February 27, 2009Date of Patent: October 25, 2011Assignees: Daimler AG, HJS Emission Technology GmbH & Co., Johnson Matthey PLCInventors: Anders Andreasson, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren, Georg Huethwohl
-
Publication number: 20100199646Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: ApplicationFiled: September 2, 2009Publication date: August 12, 2010Inventors: Anders Andreasson, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren
-
Publication number: 20090169451Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: ApplicationFiled: February 27, 2009Publication date: July 2, 2009Inventors: Anders Andreasson, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren, Georg Huethwohl
-
Patent number: 7498010Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: GrantFiled: July 8, 2004Date of Patent: March 3, 2009Assignees: Johnson Matthey Public Limited Company, Daimler AG, HJS Fahrzeugtechnik GmbH & Co KGInventors: Anders Andreasson, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren, Georg Huethwohl
-
Publication number: 20040258594Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.Type: ApplicationFiled: July 8, 2004Publication date: December 23, 2004Inventors: Anders Andreasson, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren
-
Patent number: 6805849Abstract: Selective catalytic reduction of NOx in combustion gases, especially from diesel engines, utilizes a system incorporating an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter downstream of the oxidation catalyst, a source of reductant such as NH3 or urea for injection downstream of the particulate filter, and an SCR catalyst located downstream of the point of injection of the reductant. Considerable improvements in NOx conversion are observed.Type: GrantFiled: January 9, 2001Date of Patent: October 19, 2004Assignees: Johnson Matthey Public Limited Company, HJS Fahrzeugtechnik GmbH & Co. KGInventors: Anders Andreasson, Guy Richard Chandler, Claus Friedrich Goersmann, James Patrick Warren
-
Patent number: 6680037Abstract: A canister (1) contains a catalyst for generating NO2 and a filter (8) for trapping PM, e.g. from diesel engines. The filter is thermally isolated from the canister, and preferably is surrounded by an annular monolith comprising the NO oxidation catalyst or a SCR catalyst. The invention facilitates the combustion of PM even at low exhaust gas temperatures, in a compact device.Type: GrantFiled: June 17, 2002Date of Patent: January 20, 2004Assignee: Johnson Matthey Public Limited CompanyInventors: Ronny Allansson, Anders Klas Andreasson, Guy Richard Chandler, James Patrick Warren
-
Patent number: 6427436Abstract: A heavy duty diesel engine having an exhaust system incorporating a catalyst to convert NO to NO2 and a particulate trap on which soot particles are continuously oxidized, and a portion of the exhaust gases are recirculated through a cooler and exhaust gas flow valve before being mixed with air and fed to the engine cylinders. The system also incorporates a sensor to detect the amount of NOx in the exhaust to adjust the gas flow valve, thereby adjusting the portion of recirculated exhaust gas fed to the engine cylinders.Type: GrantFiled: April 28, 2000Date of Patent: August 6, 2002Assignee: Johnson Matthey Public Limited CompanyInventors: Ronny Allansson, Klas Anders Andreasson, Nils Myers, Ari Uusimaki, James Patrick Warren