Patents by Inventor James W. Girard
James W. Girard 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: 9339800Abstract: A method for treating engine exhaust. The method includes contacting an NOx exhaust with an upstream catalyst material coated onto a substrate and including copper or iron loaded in a first zeolite at an upstream loading of 0 to 3.5 g/l to convert the NOx exhaust in a first temperature range of 150° C. to 500° C. to a first NOx converted exhaust. The method further includes contacting the first NOx converted exhaust with a downstream catalyst material coated onto the substrate downstream of the upstream catalyst material and including copper or iron loaded in a second zeolite at a downstream loading of 1.5 to 9.5 g/l to convert the first NOx converted exhaust in a second temperature range of 450° C. to 700° C.Type: GrantFiled: July 22, 2015Date of Patent: May 17, 2016Assignee: Ford Global Technologies, LLCInventors: Giovanni Cavataio, Hungwen Jen, James Robert Warner, James W. Girard, Christine Kay Lambert
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Publication number: 20150321181Abstract: A method for treating engine exhaust. The method includes contacting an NOx exhaust with an upstream catalyst material coated onto a substrate and including copper or iron loaded in a first zeolite at an upstream loading of 0 to 3.5 g/l to convert the NOx exhaust in a first temperature range of 150° C. to 500° C. to a first NOx converted exhaust. The method further includes contacting the first NOx converted exhaust with a downstream catalyst material coated onto the substrate downstream of the upstream catalyst material and including copper or iron loaded in a second zeolite at a downstream loading of 1.5 to 9.5 g/l to convert the first NOx converted exhaust in a second temperature range of 450° C. to 700° C.Type: ApplicationFiled: July 22, 2015Publication date: November 12, 2015Inventors: Giovanni Cavataio, Hungwen Jen, James Robert Warner, James W. Girard, Christine Kay Lambert
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Patent number: 9120056Abstract: According to one aspect of the present invention, a catalyst assembly is provided for treating an exhaust from an engine. In one embodiment, the catalyst assembly includes a first catalyst material catalytically active at a first temperature and loaded at a first catalyst material loading, the first catalyst material including a first base metal loading, and a second catalyst material catalytically active at a second temperature lower than the first temperature and loaded at a second catalyst material loading, the second catalyst material including a second base metal loading, wherein the second base metal loading is higher than the first base metal loading.Type: GrantFiled: February 16, 2010Date of Patent: September 1, 2015Assignee: Ford Global Technologies, LLCInventors: Giovanni Cavataio, Hungwen Jen, James Robert Warner, James W. Girard, Christine Kay Lambert
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Patent number: 9061244Abstract: A system and method for NOx reduction is described, with a catalytic unit including a first zeolite catalyst with a first NOx conversion performance in a first temperature range and a second NOx conversion performance, lower than said first NOx conversion performance, in a second temperature range. The catalytic unit also comprises a second zeolite catalyst with a third NOx conversion performance, lower than said first NOx conversion performance, in the first temperature range and a fourth NOx conversion performance, higher than said second and third NOx conversion performances in the second temperature range, said first temperature range being higher than said second temperature range. The system further includes a controller configured to adjust an amount of reducing agent added to the NOx reducing system responsive to a temperature of the catalytic unit.Type: GrantFiled: July 12, 2012Date of Patent: June 23, 2015Assignee: Ford Global Technologies, LLCInventors: James W. Girard, Giovanni Cavataio, Christine Kay Lambert, Rachel Alison Snow
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Patent number: 8343448Abstract: Systems and methods are provided for reducing NOx emissions from a vehicle including an engine having an exhaust. In one example, the system comprises a NOx reducing system coupled to the engine exhaust including a base metal zeolite, said NOx reducing system including a first layer with a first pore size and a second layer with a second pore size, said first pore size being smaller than said second pore size.Type: GrantFiled: September 30, 2008Date of Patent: January 1, 2013Assignee: Ford Global Technologies, LLCInventors: Giovanni Cavataio, James W. Girard, Hungwen Jen, Rachel Alison Snow, Christine Kay Lambert
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Publication number: 20120275978Abstract: A system and method for NOx reduction is described, with a catalytic unit including a first zeolite catalyst with a first NOx conversion performance in a first temperature range and a second NOx conversion performance, lower than said first NOx conversion performance, in a second temperature range. The catalytic unit also comprises a second zeolite catalyst with a third NOx conversion performance, lower than said first NOx conversion performance, in the first temperature range and a fourth NOx conversion performance, higher than said second and third NOx conversion performances in the second temperature range, said first temperature range being higher than said second temperature range. The system further includes a controller configured to adjust an amount of reducing agent added to the NOx reducing system responsive to a temperature of the catalytic unit.Type: ApplicationFiled: July 12, 2012Publication date: November 1, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: James W. Girard, Giovanni Cavataio, Christine Kay Lambert, Rachel Alison Snow
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Patent number: 8225597Abstract: A system and method for NOx reduction is described, with a catalytic unit including a first zeolite catalyst with a first NOx conversion performance in a first temperature range and a second NOx conversion performance, lower than said first NOx conversion performance, in a second temperature range. The catalytic unit also comprises a second zeolite catalyst with a third NOx conversion performance, lower than said first NOx conversion performance, in the first temperature range and a fourth NOx conversion performance, higher than said second and third NOx conversion performances in the second temperature range, said first temperature range being higher than said second temperature range. The system further includes a controller configured to adjust an amount of reducing agent added to the NOx reducing system responsive to a temperature of the catalytic unit.Type: GrantFiled: September 30, 2008Date of Patent: July 24, 2012Assignee: Ford Global Technologies, LLCInventors: James W. Girard, Giovanni Cavataio, Christine Kay Lambert, Rachel Alison Snow
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Patent number: 8137648Abstract: A diesel engine exhaust treatment system and method is provided which includes a platinum group metal trapping device (16) comprising cerium oxide or a perovskite material positioned between a diesel oxidation catalyst and an SCR catalyst. The platinum group metal trapping device traps trace amounts of platinum group metals which may be released from the diesel oxidation catalyst during engine operation and prevents them from accumulating on the SCR catalyst, preventing potential contamination of the SCR catalyst as well as ensuring that the performance of the SCR catalyst is uninhibited.Type: GrantFiled: October 12, 2010Date of Patent: March 20, 2012Assignee: Ford Global Technologies, LLCInventors: Hungwen Jen, Giovanni Cavataio, James W. Girard
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Patent number: 8071038Abstract: The present invention relates to an emission control system for reducing gases from the exhaust of a combustion engine. In at least one embodiment, the emission control system includes an exhaust passage for transporting the exhaust from the combustion engine, and a particulate filter and selective catalytic reduction (SCR/PF) unit disposed within the passage, with the unit having a plurality of spaced filter walls extending axially along the passage and selective catalytic reduction catalyst variably loaded on the unit to provide a more uniform pressure drop relative to a unit having uniformly loaded catalyst.Type: GrantFiled: June 9, 2010Date of Patent: December 6, 2011Assignee: Ford Global Technologies, LLCInventors: James W. Girard, Giovanni Cavataio, Jeong Yeol Kim, Christine Kay Lambert
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Publication number: 20110200505Abstract: According to one aspect of the present invention, a catalyst assembly is provided for treating an exhaust from an engine. In one embodiment, the catalyst assembly includes a first catalyst material catalytically active at a first temperature and loaded at a first catalyst material loading, the first catalyst material including a first base metal loading, and a second catalyst material catalytically active at a second temperature lower than the first temperature and loaded at a second catalyst material loading, the second catalyst material including a second base metal loading, wherein the second base metal loading is higher than the first base metal loading.Type: ApplicationFiled: February 16, 2010Publication date: August 18, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Giovanni Cavataio, Hungwen Jen, James Robert Warner, James W. Girard, Christine Kay Lambert
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Publication number: 20110162346Abstract: The present invention relates to an emission control system for reducing gases from the exhaust of a combustion engine. In at least one embodiment, the emission control system includes an exhaust passage for transporting the exhaust from the combustion engine, and a particulate filter and selective catalytic reduction (SCR/PF) unit disposed within the passage, with the unit having a plurality of spaced filter walls extending axially along the passage and selective catalytic reduction catalyst variably loaded on the unit to provide a more uniform pressure drop relative to a unit having uniformly loaded catalyst.Type: ApplicationFiled: June 9, 2010Publication date: July 7, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: James W. Girard, Giovanni Cavataio, Jeong Yeol Kim, Christine Kay Lambert
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Patent number: 7963104Abstract: An emission control system capable of remediating an exhaust from an internal combustion engine and having an exhaust passage, an oxidation catalyst, a reducing agent and a source of the reducing agent cooperating with an aperture in the exhaust passage. The aperture is disposed downstream of the oxidation catalyst. The system also includes a mixer arranged within the exhaust passage downstream of the aperture. The mixer includes a plurality of mixing elements. The mixer also includes a coating capable of hydrolyzing the reducing agent. At least a portion of the mixing elements which have a thermal conductivity greater than 8 W/m/° K. The system includes a selective catalytic reduction (SCR) catalyst disposed downstream from the mixer.Type: GrantFiled: February 15, 2008Date of Patent: June 21, 2011Assignee: Ford Global Technologies, LLCInventors: James W. Girard, Rachel Alison Snow, Emil G. Serban, Giovanni Cavataio, Christine Kay Lambert
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Publication number: 20110138777Abstract: A diesel engine exhaust treatment system and method is provided which includes a platinum group metal trapping device positioned between a diesel oxidation catalyst and an SCR catalyst. The platinum group metal trapping device traps trace amounts of platinum group metals which may be released from the diesel oxidation catalyst during engine operation and prevents them from accumulating on the SCR catalyst, preventing potential contamination of the SCR catalyst as well as ensuring that the performance of the SCR catalyst is uninhibited.Type: ApplicationFiled: October 12, 2010Publication date: June 16, 2011Inventors: Hungwen Jen, Glovanni Cavataio, James W. Girard
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Publication number: 20100077738Abstract: Systems and methods are provided for reducing NOx emissions from a vehicle including an engine having an exhaust. In one example, the system comprises a NOx reducing system coupled to the engine exhaust including a base metal zeolite, said NOx reducing system including a first layer with a first pore size and a second layer with a second pore size, said first pore size being smaller than said second pore size.Type: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Giovanni Cavataio, James W. Girard, Hungwen Jen, Rachel Allson Snow, Christine Kay Lambert
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Publication number: 20100077737Abstract: Systems and methods are provided for reducing NOx emissions from a vehicle including an engine having an exhaust. One example system comprises a NOx reducing system coupled to the engine exhaust, said NOx reducing system including a catalytic unit, said catalytic unit including a first zeolite catalyst with a first NOx conversion performance in a first temperature range and a second NOx conversion performance, lower than said first NOx conversion performance, in a second temperature range. The catalytic unit also comprises a second zeolite catalyst with a third NOx conversion performance, lower than said first NOx conversion performance, in the first temperature range and a fourth NOx conversion performance, higher than said second and third NOx conversion performances in the second temperature range, said first temperature range being higher than said second temperature range.Type: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: James W. Girard, Giovanni Cavataio, Christine Kay Lambert, Rachel Alison Snow
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Publication number: 20090205324Abstract: An emission control system capable of remediating an exhaust from an internal combustion engine and having an exhaust passage, an oxidation catalyst, a reducing agent and a source of the reducing agent cooperating with an aperture in the exhaust passage. The aperture is disposed downstream of the oxidation catalyst. The system also includes a mixer arranged within the exhaust passage downstream of the aperture. The mixer includes a plurality of mixing elements. The mixer also includes a coating capable of hydrolyzing the reducing agent. At least a portion of the mixing elements which have a thermal conductivity greater than 8 W/m/° K. The system includes a selective catalytic reduction (SCR) catalyst disposed downstream from the mixer.Type: ApplicationFiled: February 15, 2008Publication date: August 20, 2009Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: James W. Girard, Rachel Alison Snow, Emil G. Serban, Giovanni Cavataio, Christine Kay Lambert