Patents by Inventor Claus Friedrich Goersmann
Claus Friedrich Goersmann 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: 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
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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
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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
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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
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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
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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
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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
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Patent number: 8752367Abstract: An exhaust system for a lean burn internal combustion engine comprises a particulate filter (CSF), a first NOx absorbent (NOx(1)) disposed upstream of the filter and a second NOx absorbent (NOx(2)) disposed downstream of the filter.Type: GrantFiled: April 25, 2011Date of Patent: June 17, 2014Assignee: Johnson Matthey PLLCInventors: Claus Friedrich Goersmann, Paul Richard Phillips, Philip Gerald Blakeman, Guy Richard Chandler
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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
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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
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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
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Publication number: 20110258993Abstract: An exhaust system for a lean burn internal combustion engine comprises a particulate filter (CSF), a first NOx absorbent (NOx(1)) disposed upstream of the filter and a second NOx absorbent (NOx(2)) disposed downstream of the filter.Type: ApplicationFiled: April 25, 2011Publication date: October 27, 2011Applicant: Johnson Matthey Public Limited CompanyInventors: Claus Friedrich Goersmann, Paul Richard Phillips, Philip Gerald Blakeman, Guy Richard Chandler
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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
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Patent number: 7930881Abstract: An exhaust system for a lean burn internal combustion engine includes a particulate filter (CSF), a first NOx absorbent (NOx(1)) disposed upstream of the filter and a second NOx absorbent (NOx(2)) disposed downstream of the filter.Type: GrantFiled: March 8, 2004Date of Patent: April 26, 2011Assignee: Johnson Matthey Public Limited CompanyInventors: Claus Friedrich Goersmann, Paul Richard Phillips, Philip Gerald Blakeman, Guy Richard Chandler
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Patent number: 7861516Abstract: An exhaust system for a vehicular lean-burn internal combustion engine includes a NOx reduction catalyst, a source reductant, means (20) for contacting the catalyst with the reductant, means for sensing the temperature of the exhaust gas and/or the catalyst bed and means, when in use, for controlling reductant addition. The reductant addition control means supplies an amount of reductant to the catalyst at a rate corresponding to a measured temperature value of the exhaust gas and/or catalyst bed, which temperature value has been pre-determined to correlate, in use, with an amount of NOx in the exhaust gas.Type: GrantFiled: June 18, 2004Date of Patent: January 4, 2011Assignee: Johnson Matthey Public Limited CompanyInventors: Eive Tord Ronny Allansson, Anders Klas Andreasson, Claus Friedrich Goersmann, Mats Lavenius, Martyn Vincent Twigg, Andrew Peter Walker
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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
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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
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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
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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
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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