Patents by Inventor Nathan A. Ottinger
Nathan A. Ottinger 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: 11905867Abstract: An exhaust gas aftertreatment system includes: a first sensor configured to measure a parameter in the exhaust gas aftertreatment system; a second sensor configured to measure the parameter in the exhaust gas aftertreatment system, the second sensor disposed proximate the first sensor; and at least one controller configured to alternately receive sensor values from the first sensor for a first target period of time, and receive sensor values from the second sensor for a second target period of time.Type: GrantFiled: May 10, 2022Date of Patent: February 20, 2024Assignee: Cummins Emission Solutions Inc.Inventors: Nathan A. Ottinger, M. Yusuf Khan, Z. Gerald Liu, Shirish Ambadas Shimpi
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Patent number: 11795848Abstract: An exhaust gas aftertreatment system includes: a first sensor configured to measure a parameter in the exhaust gas aftertreatment system; a second sensor configured to measure the parameter in the exhaust gas aftertreatment system, the second sensor disposed proximate the first sensor; and at least one controller configured to simultaneously receive sensor values from the first sensor and receive sensor values from the second sensor.Type: GrantFiled: May 12, 2022Date of Patent: October 24, 2023Assignee: Cummins Emission Solutions Inc.Inventors: Nathan A. Ottinger, M. Yusuf Khan, Z. Gerald Liu, Shirish Ambadas Shimpi
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Patent number: 11753975Abstract: An exhaust aftertreatment system for increasing fractional efficiency of diesel or gasoline particulate filters includes a particulate filter that includes a housing and a filter substrate positioned in the housing. The filter substrate is pre-conditioned with an aqueous solution or suspension configured to decompose or evaporate in response to exposure to heat so as to precondition the filter substrate.Type: GrantFiled: December 5, 2022Date of Patent: September 12, 2023Assignee: Cummins Emission Solutions Inc.Inventors: Changsheng C. Su, A. Carl McDonald, Ramakrishna Gopal Dontha, Niklas M. Schmidt, Nathan A. Ottinger, Z. Gerald Liu, James C. Clerc, Yujun Wang
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Publication number: 20230160326Abstract: An exhaust aftertreatment system for increasing fractional efficiency of diesel or gasoline particulate filters includes a particulate filter that includes a housing and a filter substrate positioned in the housing. The filter substrate is pre-conditioned with an aqueous solution or suspension configured to decompose or evaporate in response to exposure to heat so as to precondition the filter substrate.Type: ApplicationFiled: December 5, 2022Publication date: May 25, 2023Applicant: CUMMINS EMISSION SOLUTIONS INC.Inventors: Changsheng C. Su, A. Carl McDonald, Ramakrishna Gopal Dontha, Niklas M. Schmidt, Nathan A. Ottinger, Z. Gerald Liu, James C. Clerc, Yujun Wang
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Patent number: 11578634Abstract: An aftertreatment system configured to reduce constituents of an exhaust gas produced by an engine comprises an aftertreatment component and an optical assembly. The optical assembly comprises an optical emitter configured to emit light onto a face of the aftertreatment component, and an optical detector configured to detect light reflected from the face of the aftertreatment component. A controller is configured to determine at least one of an amount of NOx gases or an amount of ammonia on the face of the aftertreatment component based on an optical parameter of the detected light that has reflected from the face of the aftertreatment component.Type: GrantFiled: May 13, 2022Date of Patent: February 14, 2023Assignee: Cummins Emission Solutions Inc.Inventors: Nathan A. Ottinger, Z. Gerald Liu, Yuanzhou Xi
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Patent number: 11519310Abstract: An exhaust aftertreatment system for increasing fractional efficiency of diesel or gasoline particulate filters includes a particulate filter that includes a housing and a filter substrate positioned in the housing. The filter substrate is pre-conditioned with an aqueous solution or suspension configured to decompose or evaporate in response to exposure to heat so as to precondition the filter substrate.Type: GrantFiled: February 15, 2019Date of Patent: December 6, 2022Assignee: Cummins Emission Solutions Inc.Inventors: Changsheng C. Su, A. Carl McDonald, Jr., Ramakrishna Gopal Dontha, Niklas M. Schmidt, Nathan A. Ottinger, Z. Gerald Liu, James C. Clerc, Yujun Wang
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Publication number: 20220268189Abstract: An exhaust gas aftertreatment system includes: a first sensor configured to measure a parameter in the exhaust gas aftertreatment system; a second sensor configured to measure the parameter in the exhaust gas aftertreatment system, the second sensor disposed proximate the first sensor; and at least one controller configured to alternately receive sensor values from the first sensor for a first target period of time, and receive sensor values from the second sensor for a second target period of time.Type: ApplicationFiled: May 10, 2022Publication date: August 25, 2022Applicant: Cummins Emission Solutions Inc.Inventors: Nathan A. Ottinger, M. Yusuf Khan, Z. Gerald Liu, Shirish Ambadas Shimpi
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Publication number: 20220268195Abstract: An aftertreatment system configured to reduce constituents of an exhaust gas produced by an engine comprises an aftertreatment component and an optical assembly. The optical assembly comprises an optical emitter configured to emit light onto a face of the aftertreatment component, and an optical detector configured to detect light reflected from the face of the aftertreatment component. A controller is configured to determine at least one of an amount of NOx gases or an amount of ammonia on the face of the aftertreatment component based on an optical parameter of the detected light that has reflected from the face of the aftertreatment component.Type: ApplicationFiled: May 13, 2022Publication date: August 25, 2022Applicant: CUMMINS EMISSION SOLUTIONS INC.Inventors: Nathan A. Ottinger, Z. Gerald Liu, Yuanzhou Xi
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Publication number: 20220268190Abstract: An exhaust gas aftertreatment system includes: a first sensor configured to measure a parameter in the exhaust gas aftertreatment system; a second sensor configured to measure the parameter in the exhaust gas aftertreatment system, the second sensor disposed proximate the first sensor; and at least one controller configured to simultaneously receive sensor values from the first sensor and receive sensor values from the second sensor.Type: ApplicationFiled: May 12, 2022Publication date: August 25, 2022Applicant: Cummins Emission Solutions Inc.Inventors: Nathan A. Ottinger, M. Yusuf Khan, Z. Gerald Liu, Shirish Ambadas Shimpi
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Publication number: 20220178285Abstract: An exhaust aftertreatment system for increasing fractional efficiency of diesel or gasoline particulate filters includes a particulate filter that includes a housing and a filter substrate positioned in the housing. The filter substrate is pre-conditioned with an aqueous solution or suspension configured to decompose or evaporate in response to exposure to heat so as to precondition the filter substrate.Type: ApplicationFiled: February 15, 2019Publication date: June 9, 2022Applicant: CUMMINS EMISSION SOLUTIONS INC.Inventors: Changsheng C. Su, A. Carl McDonald, JR., Ramakrishna Gopal Dontha, Niklas M. Schmidt, Nathan A. Ottinger, Z. Gerald Liu, James C. Clerc, Yujun Wang
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Patent number: 11346264Abstract: An exhaust gas aftertreatment system includes a first sensor configured to measure a parameter and a second sensor disposed proximate the first sensor and configured to measure the parameter. The system includes a controller configured to initially utilize the first sensor as a primary sensor. At target intervals, the controller is configured to receive a first sensor value from the first sensor and receive a second sensor value from the second sensor. The controller is configured to calculate a difference between the first sensor value and the second sensor value and determine if the difference between the first sensor value and the second sensor value is greater than a threshold value. If the difference between the first and second sensor values is greater than the threshold value, the controller is configured to stop utilizing the first sensor as the primary sensor and utilize the second sensor as the primary sensor.Type: GrantFiled: August 25, 2020Date of Patent: May 31, 2022Assignee: CUMMINS EMISSION SOLUTIONS INC.Inventors: Nathan A. Ottinger, M. Yusuf Khan, Z. Gerald Liu, Shirish Ambadas Shimpi
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Publication number: 20220112824Abstract: A method includes: providing a SCR system comprising a SCR catalyst; heating the SCR system to a temperature greater than 500 degrees Celsius for a predetermined time so as to increase sulfur resistance of the SCR catalyst; and installing the SCR system in an aftertreatment system.Type: ApplicationFiled: January 10, 2020Publication date: April 14, 2022Applicant: Cummins Emission Solutions Inc.Inventors: Changsheng C. Su, Yuanzhou Xi, Jinqian Gong, Ramakrishna Gopal Dontha, Nathan A. Ottinger, Z. Gerald Liu, James C. Clerc
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Patent number: 11193853Abstract: A sensing assembly comprises a sensor housing having a sensing end and a coupling end opposite the sensing end. A sensing element and a heating element are disposed within the sensor housing. A tip cover and coupling end cover removably coupled to the ends of the sensor housing. The tip cover and coupling end cover are configured to be uncoupled from the sensor housing to enable removal of at least one of the sensing element, the heating element, or an integrated sensing/heating element from the sensor housing, and replacement with at least one of a new sensing element or a new heating element, the tip cover and coupling end cover configured to be recoupled to the sensor housing after at least one of the new sensing element or the new heating element is disposed in the sensor housing.Type: GrantFiled: January 23, 2020Date of Patent: December 7, 2021Assignee: Cummins Emission Solutions Inc.Inventors: Nathan A. Ottinger, Z. Gerald Liu, Rafael Ernesto Vasquez Lombardo, Krishna Pradeep Chilumukuru
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Publication number: 20210348536Abstract: An aftertreatment system configured to reduce constituents of an exhaust gas produced by an engine comprises an aftertreatment component and an optical assembly. The optical assembly comprises an optical emitter configured to emit light onto a face of the aftertreatment component, and an optical detector configured to detect light reflected from the face of the aftertreatment component. A controller is configured to determine at least one of an amount of NOx gases or an amount of ammonia on the face of the aftertreatment component based on an optical parameter of the detected light that has reflected from the face of the aftertreatment component.Type: ApplicationFiled: August 9, 2019Publication date: November 11, 2021Applicant: CUMMINS EMISSION SOLUTIONS INC.Inventors: Nathan A. Ottinger, Z. Gerald Liu, Yuanzhou Xi
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Publication number: 20210062698Abstract: An exhaust gas aftertreatment system includes a first sensor configured to measure a parameter and a second sensor disposed proximate the first sensor and configured to measure the parameter. The system includes a controller configured to initially utilize the first sensor as a primary sensor. At target intervals, the controller is configured to receive a first sensor value from the first sensor and receive a second sensor value from the second sensor. The controller is configured to calculate a difference between the first sensor value and the second sensor value and determine if the difference between the first sensor value and the second sensor value is greater than a threshold value. If the difference between the first and second sensor values is greater than the threshold value, the controller is configured to stop utilizing the first sensor as the primary sensor and utilize the second sensor as the primary sensor.Type: ApplicationFiled: August 25, 2020Publication date: March 4, 2021Applicant: Cummins Emission Solutions Inc.Inventors: Nathan A. Ottinger, M. Yusuf Khan, Z. Gerald Liu, Shirish Ambadas Shimpi
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Publication number: 20200300314Abstract: A collection system for a vehicle that includes a chassis supporting the vehicle above a ground surface, a braking system coupled to the chassis, and a movement member supporting the chassis on the ground surface, includes a first duct, a first collecting conduit, a filter, and a fan. The first duct is configured to be coupled to the chassis proximate at least one of the braking system or the movement member such that the first duct is positioned proximate to the at least one of the braking system or the movement member. The first collecting conduit is fluidly coupled to the first duct. The filter is fluidly coupled to the first collecting conduit. The fan is fluidly coupled to the filter and configured to create a suction force. The fan, the filter, and the first collecting conduit are configured to provide the suction force to the first duct.Type: ApplicationFiled: March 17, 2020Publication date: September 24, 2020Applicant: CUMMINS EMISSION SOLUTIONS INC.Inventors: Nathan A. Ottinger, Z. Gerald Liu
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Publication number: 20200240873Abstract: A sensing assembly comprises a sensor housing having a sensing end and a coupling end opposite the sensing end. A sensing element and a heating element are disposed within the sensor housing. A tip cover and coupling end cover removably coupled to the ends of the sensor housing. The tip cover and coupling end cover are configured to be uncoupled from the sensor housing to enable removal of at least one of the sensing element, the heating element, or an integrated sensing/heating element from the sensor housing, and replacement with at least one of a new sensing element or a new heating element, the tip cover and coupling end cover configured to be recoupled to the sensor housing after at least one of the new sensing element or the new heating element is disposed in the sensor housing.Type: ApplicationFiled: January 23, 2020Publication date: July 30, 2020Applicant: Cummins Emission Solutions Inc.Inventors: Nathan A. Ottinger, Z. Gerald Liu, Rafael Ernesto Vasquez Lombardo, Krishna Pradeep Chilumukuru
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Patent number: 10082062Abstract: A method for increasing a catalytic efficiency of a catalyst, comprising providing a catalyst. Finally, the catalyst is installed into a selective catalytic reduction system of an aftertreatment system configured to reduce constituents of an exhaust gas generated by an engine. The catalyst is soaked in a liquid which consists essentially of one of water or a water-comprising solution. The soaking occurs at least one of before or after installing the catalyst in the selective catalytic reduction system. The catalyst can include a copper zeolite catalyst.Type: GrantFiled: April 18, 2016Date of Patent: September 25, 2018Assignee: CUMMINS EMISSION SOLUTIONS, INC.Inventors: Nathan A. Ottinger, Z. Gerald Liu, Yuanzhou Xi, Rebecca A. Veele, Changsheng C. Su, Niklas Schmidt
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Publication number: 20180135489Abstract: A method for increasing a catalytic efficiency of a catalyst, comprising providing a catalyst. Finally, the catalyst is installed into a selective catalytic reduction system of an aftertreatment system configured to reduce constituents of an exhaust gas generated by an engine. The catalyst is soaked in a liquid which consists essentially of one of water or a water-comprising solution. The soaking occurs at least one of before or after installing the catalyst in the selective catalytic reduction system. The catalyst can include a copper zeolite catalyst.Type: ApplicationFiled: April 18, 2016Publication date: May 17, 2018Applicant: Cummins Emission Solutions, Inc.Inventors: Nathan A. Ottinger, Z. Gerald Liu, Yuanzhou Xi, Rebecca A. Veele, Changsheng C. Su, Niklas Schmidt
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Publication number: 20140065041Abstract: Methods and systems include an operation to interpret a face-plugging index and/or a reduction in an expected oxidation efficiency of an oxidation catalyst disposed in an internal combustion engine aftertreatment system, and in response to the face-plugging index or the reduction oxidation efficiency reaching a threshold value, an operation to provide a catalyst element reversal command.Type: ApplicationFiled: August 28, 2013Publication date: March 6, 2014Applicant: Cummins Emission Solutions, Inc.Inventors: Tamas Szailer, Junhui Li, Aleksey Yezerets, Ross Berryhill, Matthew Henrichsen, Nathan Ottinger