Patents by Inventor Christine Kay Lambert
Christine Kay Lambert 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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Emission control system with an integrated particulate filter and selective catalytic reduction unit
Patent number: 8448424Abstract: The present invention relates to an emission control system for reducing gases from the exhaust of a combustion process. In at least one embodiment, the emission control system includes an exhaust passage for transporting the exhaust from the combustion process; a reductant disposed within exhaust passage downstream of the combustion process, and an integrated particulate filter and selective catalytic reduction unit disposed downstream of the reductant, with the unit having a first selective catalytic reduction catalyst disposed within a first inner wall portion of the exhaust passage; and a particulate filter disposed within a second inner wall portion of the exhaust passage downstream of the first inner wall portion. In at least one particular embodiment, the particulate fileter is coated with a second selective catalytic reduction catalyst.Type: GrantFiled: January 16, 2009Date of Patent: May 28, 2013Assignee: Ford Global Technologies, LLC.Inventors: Yinyan Huang, Christine Kay Lambert -
Patent number: 8404202Abstract: According to at least one aspect of the present invention, a urea-resistant catalytic unit is provided. In at least one embodiment, the catalytic unit includes a catalyst having a catalyst surface, and a urea-resistant coating in contact with at least a portion of the catalyst surface, wherein the urea-resistant coating effectively reduces urea-induced deactivation of the catalyst. In at least another embodiment, the urea-resistant coating includes at least one oxide from the group consisting of titanium oxide, tungsten oxide, zirconium oxide, molybdenum oxide, aluminum oxide, silicon dioxide, sulfur oxide, niobium oxide, molybdenum oxide, yttrium oxide, nickel oxide, cobalt oxide, and combinations thereof.Type: GrantFiled: May 25, 2012Date of Patent: March 26, 2013Assignee: Ford Global Technologies, LLCInventors: Yisun Cheng, Yinyan Huang, Christine Kay Lambert
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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: 20120304751Abstract: Methods and systems for controlling and/or diagnosing an emission control system of a vehicle having a first SCR region upstream of a second SCR region are provided herein. One exemplary method includes, indicating degradation based on a first SCR region performance during a first condition; and indicating degradation based on a second SCR region performance during a second condition, the first condition different than the second condition. In this way, different levels of degradation among different SCR regions may be used to indicate emissions levels have increased above a threshold value, for example.Type: ApplicationFiled: August 10, 2012Publication date: December 6, 2012Applicant: Ford Global Technologies, LLCInventors: Douglas Allen Dobson, Giovanni Cavataio, Ed Badillo, Christine Kay Lambert, Gang Guo
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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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Publication number: 20120230894Abstract: According to at least one aspect of the present invention, a urea-resistant catalytic unit is provided. In at least one embodiment, the catalytic unit includes a catalyst having a catalyst surface, and a urea-resistant coating in contact with at least a portion of the catalyst surface, wherein the urea-resistant coating effectively reduces urea-induced deactivation of the catalyst.Type: ApplicationFiled: May 25, 2012Publication date: September 13, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Yisun Cheng, Yinyan Huang, Christine Kay Lambert
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Patent number: 8240194Abstract: Methods and systems for controlling and/or diagnosing an emission control system of a vehicle having a first SCR region upstream of a second SCR region are provided herein. One exemplary method includes, indicating degradation based on a first SCR region performance during a first condition; and indicating degradation based on a second SCR region performance during a second condition, the first condition different than the second condition. In this way, different levels of degradation among different SCR regions may be used to indicate emissions levels have increased above a threshold value, for example.Type: GrantFiled: July 30, 2009Date of Patent: August 14, 2012Assignee: Ford Global Technologies, LLCInventors: Douglas Allen Dobson, Giovanni Cavataio, Ed Badillo, Christine Kay Lambert, Gang Guo
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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: 8207084Abstract: According to at least one aspect of the present invention, a urea-resistant catalytic unit is provided. In at least one embodiment, the catalytic unit includes a catalyst having a catalyst surface, and a urea-resistant coating in contact with at least a portion of the catalyst surface, wherein the urea-resistant coating effectively reduces urea-induced deactivation of the catalyst. In at least another embodiment, the urea-resistant coating includes at least one oxide from the group consisting of titanium oxide, tungsten oxide, zirconium oxide, molybdenum oxide, aluminum oxide, silicon dioxide, sulfur oxide, niobium oxide, molybdenum oxide, yttrium oxide, nickel oxide, cobalt oxide, and combinations thereof.Type: GrantFiled: June 23, 2009Date of Patent: June 26, 2012Assignee: Ford Global Technologies, LLCInventors: Yisun Cheng, Yinyan Huang, Christine Kay Lambert
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Patent number: 8191354Abstract: Systems and methods for reducing NOx emissions using a branched exhaust system with a first and second turbine including an emission-control device containing a zeolite, are described. In one example approach, a method comprises: during a first duration when exhaust temperature is below a first temperature threshold, directing exhaust gas through the second turbine and the emission-control device, and adjusting the second turbine to control intake boost; and during a second duration following the first, directing exhaust gas through the first turbine, and adjusting the first turbine to control intake boost. In this way, the first and second turbines may provide a greater degree of boost control in order to reduce boost fluctuations while enabling storing cold start NOx emissions for later reduction.Type: GrantFiled: October 20, 2009Date of Patent: June 5, 2012Assignee: Ford Global Technologies, LLCInventors: Giovanni Cavataio, Jeong Yeol Kim, Michael Goebelbecker, Paul M Laing, Christine Kay Lambert
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Publication number: 20120023909Abstract: Systems and methods are provided for a layered emission control device coupled to an exhaust manifold. Various formulations may be incorporated in a plurality of layers of the device to enable various emission control functions to be grouped within spatial constraints. The layers may be organized to reduce functional interference and improve functional synergy between the various emission control functions.Type: ApplicationFiled: August 17, 2011Publication date: February 2, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Christine Kay Lambert, Douglas Allen Dobson
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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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Patent number: 8062601Abstract: An exemplary emission treatment system for reducing gases from the exhaust of an engine includes an exhaust passage for transporting the exhaust from the engine. A selective catalytic reduction (SCR) catalyst is disposed within the passage, and an oxidation catalyst is disposed in the passage upstream of the SCR catalyst. The oxidation catalyst has noble metal, with at least 90 wt. % of the metal comprising palladium (Pd).Type: GrantFiled: October 26, 2010Date of Patent: November 22, 2011Assignee: Ford Global Technologies, LLCInventors: Yisun Cheng, Clifford Norman Montreuil, Giovanni Cavataio, Douglas Allen Dobson, Christine Kay Lambert
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Publication number: 20110247327Abstract: A system for treating exhaust gases from an engine is described. The system includes, the exhaust gases routed from the engine to atmosphere through an exhaust passage, the system comprising: an injector directing a spray of reductant into the exhaust gases routed from the engine to atmosphere; an exhaust separation passage that separates an exhaust gas flow received from the engine into a plurality of separate exhaust gas flows; a plurality of oxidation catalysts, each of which receives one of the plurality of separate exhaust gas flows; a flow combining passage that receives the plurality of separate exhaust gas flows and combines them into a re-combined exhaust gas flow; a turbocharger that receives the re-combined exhaust gas flow from the flow combining passage; and a selective catalytic reduction catalyst positioned downstream of the turbocharger.Type: ApplicationFiled: June 24, 2011Publication date: October 13, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Christine Kay Lambert, Yinyan Huang, Harold Huimin Sun, Christopher Oberski
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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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Publication number: 20110162349Abstract: The present invention relates to an emission treatment system for reducing gases from the exhaust of an engine. In at least one embodiment, the emission treatment system includes an exhaust passage for transporting the exhaust from the engine, a selective catalytic reduction (SCR) catalyst disposed within the passage, and an oxidation catalyst disposed in the passage upstream of the SCR catalyst, with the oxidation catalyst having metal, with at least 90 wt. % of the metal comprising palladium (Pd).Type: ApplicationFiled: October 26, 2010Publication date: July 7, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Yisun Cheng, Clifford Norman Montreuil, Giovanni Cavataio, Douglas Allen Dobson, Christine Kay Lambert
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Publication number: 20110165040Abstract: In at least one embodiment, a combined selective catalytic reduction catalyst and particulate filter (SCRF) includes a particulate filter having walls defining an intake channel including a downstream end cap and an outlet channel including an upstream end cap and an open end through which emissions pass. The walls define a plurality of pores. The walls include a plurality of zeolite-base metal particles and a binder. A washcoat is situated adjacent to less than 50% of the length of the outlet channel. The washcoat is capable of receiving noble metal particles.Type: ApplicationFiled: November 3, 2010Publication date: July 7, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Yinyan Huang, Christine Kay Lambert
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Patent number: 7971430Abstract: A system for treating exhaust gases from an engine is described. The system includes, the exhaust gases routed from the engine to atmosphere through an exhaust passage, the system comprising: an injector directing a spray of reductant into the exhaust gases routed from the engine to atmosphere; an exhaust separation passage that separates an exhaust gas flow received from the engine into a plurality of separate exhaust gas flows; a plurality of oxidation catalysts, each of which receives one of the plurality of separate exhaust gas flows; a flow combining passage that receives the plurality of separate exhaust gas flows and combines them into a re-combined exhaust gas flow; a turbocharger that receives the re-combined exhaust gas flow from the flow combining passage; and a selective catalytic reduction catalyst positioned downstream of the turbocharger.Type: GrantFiled: April 4, 2008Date of Patent: July 5, 2011Assignee: Ford Global Technologies, LLCInventors: Christine Kay Lambert, Yinyan Huang, Harold Huimin Sun, Christopher Oberski
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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