Patents by Inventor Duncan Engeham
Duncan Engeham 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: 9849424Abstract: Described herein are various embodiments of a reductant decomposition system. According to one representative embodiment, the reductant decomposition system includes an exhaust gas chamber including an inlet and outlet. The system also includes a first exhaust gas distribution component positioned within the chamber and communicable in exhaust gas receiving communication with the outlet. The first exhaust gas distribution component causes swirling exhaust gas flow patterns within the exhaust gas chamber. Additionally, the system includes a second exhaust gas distribution component positioned within the chamber and communicable in exhaust gas providing communication with the inlet. The second exhaust gas distribution component includes features that cause a swirling exhaust gas flow pattern within a space defined by the second exhaust gas distribution component. Further, the system includes a reductant injector coupled to the exhaust gas chamber.Type: GrantFiled: March 6, 2014Date of Patent: December 26, 2017Assignee: Cummins Emission Solutions Inc.Inventors: Debbie Davidson, Duncan Engeham, Piotr Uban, David Elsey, Z. Gerald Liu, Kenneth Pawson, Paul Smith, Ken Capel, Andrew Critchley, David Sarcona, James Goss
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Patent number: 9021794Abstract: According to one embodiment, described herein is an apparatus for decomposing diesel exhaust fluid into ammonia for an internal combustion engine (ICE) system having a selective catalytic reduction system. The apparatus includes an outlet cover, an inlet cover coupled to the outlet cover, and a support plate disposed between the outlet cover and the inlet cover. The support plate forms an outlet channel with the outlet cover and an inlet channel with the inlet cover. The inlet channel is fluidly coupled to the outlet channel. Additionally, the inlet channel may be adjacent to the outlet channel.Type: GrantFiled: March 15, 2013Date of Patent: May 5, 2015Assignee: Cummins Intellectual Property, Inc.Inventors: James Goss, Duncan Engeham, Ryan M. Johnson
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Publication number: 20140260209Abstract: According to one embodiment, described herein is an apparatus for decomposing diesel exhaust fluid into ammonia for an internal combustion engine (ICE) system having a selective catalytic reduction system. The apparatus includes an outlet cover, an inlet cover coupled to the outlet cover, and a support plate disposed between the outlet cover and the inlet cover. The support plate forms an outlet channel with the outlet cover and an inlet channel with the inlet cover. The inlet channel is fluidly coupled to the outlet channel. Additionally, the inlet channel may be adjacent to the outlet channel.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: James Goss, Duncan Engeham, Ryan M. Johnson
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Publication number: 20140193318Abstract: Described herein are various embodiments of a reductant decomposition system. According to one representative embodiment, the reductant decomposition system includes an exhaust gas chamber including an inlet and outlet. The system also includes a first exhaust gas distribution component positioned within the chamber and communicable in exhaust gas receiving communication with the outlet. The first exhaust gas distribution component causes swirling exhaust gas flow patterns within the exhaust gas chamber. Additionally, the system includes a second exhaust gas distribution component positioned within the chamber and communicable in exhaust gas providing communication with the inlet. The second exhaust gas distribution component includes features that cause a swirling exhaust gas flow pattern within a space defined by the second exhaust gas distribution component. Further, the system includes a reductant injector coupled to the exhaust gas chamber.Type: ApplicationFiled: March 6, 2014Publication date: July 10, 2014Applicant: Cummins Filtration IP, Inc.Inventors: Debbie Davidson, Duncan Engeham, Piotr Uban, David Elsey, Z. Gerald Liu, Ken Pawson, Paul Smith, Ken Capel, Andrew Critchley, David Sarcona, James Goss
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Patent number: 8695330Abstract: Described herein are various embodiments of a reductant decomposition system. According to one representative embodiment, the reductant decomposition system includes an exhaust gas chamber including an inlet and outlet. The system also includes a first exhaust gas distribution component positioned within the chamber and communicable in exhaust gas receiving communication with the outlet. The first exhaust gas distribution component causes swirling exhaust gas flow patterns within the exhaust gas chamber. Additionally, the system includes a second exhaust gas distribution component positioned within the chamber and communicable in exhaust gas providing communication with the inlet. The second exhaust gas distribution component includes features that cause a swirling exhaust gas flow pattern within a space defined by the second exhaust gas distribution component. Further, the system includes a reductant injector coupled to the exhaust gas chamber.Type: GrantFiled: October 22, 2010Date of Patent: April 15, 2014Assignee: Cummins Filtration IP, Inc.Inventors: Debbie Davidson, Duncan Engeham, Piotr Urban, David Elsey, Z. Gerald Liu, Ken Pawson, Paul Smith, Ken Capel, Andrew Critchley, David Sarcona, James R Goss
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Publication number: 20110099978Abstract: Described herein are various embodiments of a reductant decomposition system. According to one representative embodiment, the reductant decomposition system includes an exhaust gas chamber including an inlet and outlet. The system also includes a first exhaust gas distribution component positioned within the chamber and communicable in exhaust gas receiving communication with the outlet. The first exhaust gas distribution component causes swirling exhaust gas flow patterns within the exhaust gas chamber. Additionally, the system includes a second exhaust gas distribution component positioned within the chamber and communicable in exhaust gas providing communication with the inlet. The second exhaust gas distribution component includes features that cause a swirling exhaust gas flow pattern within a space defined by the second exhaust gas distribution component. Further, the system includes a reductant injector coupled to the exhaust gas chamber.Type: ApplicationFiled: October 22, 2010Publication date: May 5, 2011Applicant: CUMMINS IP, INCInventors: Debbie Davidson, Duncan Engeham, Piotr Urban, David Elsey, Z. Gerald Liu, Ken Pawson, Paul Smith, Ken Capel, Andrew Critchley, David Sarcona, James R. Goss