Patents by Inventor Matthew E. Leustek
Matthew E. Leustek 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: 9677440Abstract: An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NOX reduction in the presence of the reductant, can be disposed within a second canister of the aftertreatment system adjacent to an upstream end thereof. An exhaust conduit can extend from the downstream end of the first canister to the upstream end of the second canister. An interior volume within the exhaust conduit can extend from an upstream end adjacent to and in fluid communication with the hydrolysis catalyst to a downstream end adjacent to and in fluid communication with the particulate collection device.Type: GrantFiled: March 27, 2015Date of Patent: June 13, 2017Assignee: Caterpillar Inc.Inventors: Amy E. Fischer, Matthew E. Leustek, Justin W. McMenamy, Brandon T. Shull, Ronald G. Silver
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Publication number: 20150198069Abstract: An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NOX reduction in the presence of the reductant, can be disposed within a second canister of the aftertreatment system adjacent to an upstream end thereof. An exhaust conduit can extend from the downstream end of the first canister to the upstream end of the second canister. An interior volume within the exhaust conduit can extend from an upstream end adjacent to and in fluid communication with the hydrolysis catalyst to a downstream end adjacent to and in fluid communication with the particulate collection device.Type: ApplicationFiled: March 27, 2015Publication date: July 16, 2015Applicant: Caterpillar Inc.Inventors: Amy E. Fischer, Matthew E. Leustek, Justin W. McMenamy, Brandon T. Shull, Ronald G. Silver
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Patent number: 9016050Abstract: An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NOX reduction in the presence of the reductant, can be disposed within a second canister of the aftertreatment system adjacent to an upstream end thereof. An exhaust conduit can extend from the downstream end of the first canister to the upstream end of the second canister. An interior volume within the exhaust conduit can extend from an upstream end adjacent to and in fluid communication with the hydrolysis catalyst to a downstream end adjacent to and in fluid communication with the particulate collection device.Type: GrantFiled: December 19, 2012Date of Patent: April 28, 2015Assignee: Caterpillar Inc.Inventors: Amy E. Fischer, Matthew E. Leustek, Justin W. McMenamy, Brandon T. Shull, Ronald G. Silver
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Publication number: 20140165540Abstract: An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NOX reduction in the presence of the reductant, can be disposed within a second canister of the aftertreatment system adjacent to an upstream end thereof. An exhaust conduit can extend from the downstream end of the first canister to the upstream end of the second canister. An interior volume within the exhaust conduit can extend from an upstream end adjacent to and in fluid communication with the hydrolysis catalyst to a downstream end adjacent to and in fluid communication with the particulate collection device.Type: ApplicationFiled: December 19, 2012Publication date: June 19, 2014Applicant: Caterpillar IncInventors: Amy E. Fischer, Matthew E. Leustek, Justin W. McMenamy, Brandon T. Shull, Ronald G. Silver
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Patent number: 8470070Abstract: Detecting ash in a diesel particulate filter includes receiving data indicative of signal attenuation for ash-responsive and ash-insensitive RF signals transmitted through a diesel particulate filter containing trapped soot and ash. A difference between the RF signals, such as a difference in signal attenuation, may be leveraged to detect a relative ash loading state or a change in relative ash loading state of the diesel particulate filter, and responsively indicate that filter cleaning is needed.Type: GrantFiled: July 22, 2010Date of Patent: June 25, 2013Assignee: Caterpillar Inc.Inventors: Vadiraj P. Kulkarni, Matthew E. Leustek, Sara K. Michels, Rajesh N. Nair, Michael A. Snopko, Andrew A. Knitt
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Patent number: 8336292Abstract: An exhaust component for use with a combustion engine is disclosed. The exhaust component may have a housing at least partially defining an inlet and an outlet, and a treatment device supported by the housing in communication with exhaust passing from the inlet to the outlet. The exhaust component may also have a life indicator permanently associated with at least one of the housing and the treatment device.Type: GrantFiled: November 12, 2008Date of Patent: December 25, 2012Assignee: Caterpillar Inc.Inventors: Jason K. Bloms, Mohamed Daoud, Antony J. Eager, Kevin D. Ehrenhardt, Tazio S. Grivetti, David J. Kapparos, Matthew E. Leustek, Anthony C. Rodman, Richard Severns, II, Yanchai Zhang
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Patent number: 8282706Abstract: An engine exhaust after-treatment system is provided, which may include a particulate trap configured to remove at least some constituents of the exhaust flowing from an engine through an exhaust system. The system may also include a controller configured to collect in-service data related to an operating parameter indicative of the amount of time the engine operates. In addition, the system may include a memory device attached to the particulate trap and including a memory. The memory may be configured to store usage data indicative of how much time the particulate trap has been used in service. The memory may be configured to communicate with the controller to receive information related to the in-service data collected by the controller and update the usage data in the memory, based on the communication with the controller, to reflect a total amount of time the particulate trap has been in service.Type: GrantFiled: March 15, 2012Date of Patent: October 9, 2012Assignee: Caterpillar Inc.Inventors: Matthew E. Leustek, Michael P. Withrow, Clayton D. Walenta
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Publication number: 20120167556Abstract: An engine exhaust after-treatment system is provided, which may include a particulate trap configured to remove at least some constituents of the exhaust flowing from an engine through an exhaust system. The system may also include a controller configured to collect in-service data related to an operating parameter indicative of the amount of time the engine operates. In addition, the system may include a memory device attached to the particulate trap and including a memory. The memory may be configured to store usage data indicative of how much time the particulate trap has been used in service. The memory may be configured to communicate with the controller to receive information related to the in-service data collected by the controller and update the usage data in the memory, based on the communication with the controller, to reflect a total amount of time the particulate trap has been in service.Type: ApplicationFiled: March 15, 2012Publication date: July 5, 2012Inventors: Matthew E. Leustek, Michael P. Withrow, Clayton D. Walenta
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Patent number: 8182578Abstract: An engine exhaust after-treatment system is provided, which may include a particulate trap configured to remove at least some constituents of the exhaust flowing from an engine through an exhaust system. The system may also include a controller configured to collect in-service data related to an operating parameter indicative of the amount of time the engine operates. In addition, the system may include a memory device attached to the particulate trap and including a memory. The memory may be configured to store usage data indicative of how much time the particulate trap has been used in service. The memory may be configured to communicate with the controller to receive information related to the in-service data collected by the controller and update the usage data in the memory, based on the communication with the controller, to reflect a total amount of time the particulate trap has been in service.Type: GrantFiled: November 30, 2007Date of Patent: May 22, 2012Assignee: Caterpillar Inc.Inventors: Matthew E. Leustek, Matthew P. Withrow, Clayton D. Walenta
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Publication number: 20120017570Abstract: Detecting ash in a diesel particulate filter includes receiving data indicative of signal attenuation for ash-responsive and ash-insensitive RF signals transmitted through a diesel particulate filter containing trapped soot and ash. A difference between the RF signals, such as a difference in signal attenuation, may be leveraged to detect a relative ash loading state or a change in relative ash loading state of the diesel particulate filter, and responsively indicate that filter cleaning is needed.Type: ApplicationFiled: July 22, 2010Publication date: January 26, 2012Applicant: CATERPILLAR INC.Inventors: Vadiraj P. Kulkarni, Matthew E. Leustek, Sara K. Michels, Rajesh N. Nair, Michael A. Snopko, Andrew A. Knitt
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Publication number: 20100115920Abstract: An exhaust component for use with a combustion engine is disclosed. The exhaust component may have a housing at least partially defining an inlet and an outlet, and a treatment device supported by the housing in communication with exhaust passing from the inlet to the outlet. The exhaust component may also have a life indicator permanently associated with at least one of the housing and the treatment device.Type: ApplicationFiled: November 12, 2008Publication date: May 13, 2010Inventors: Jason K. Bloms, Mohamed Daoud, Anthony J. Eager, Kevin D. Ehrenhardt, Tazio S. Grivetti, David J. Kapparos, Matthew E. Leustek, Anthony C. Rodman, Richard Severns, II, Yanchai Zhang