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).

  • Patent number: 9849424
    Abstract: 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: Grant
    Filed: March 6, 2014
    Date of Patent: December 26, 2017
    Assignee: 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
  • Patent number: 9021794
    Abstract: 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: Grant
    Filed: March 15, 2013
    Date of Patent: May 5, 2015
    Assignee: Cummins Intellectual Property, Inc.
    Inventors: James Goss, Duncan Engeham, Ryan M. Johnson
  • Publication number: 20140260209
    Abstract: 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: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: CUMMINS INTELLECTUAL PROPERTY, INC.
    Inventors: James Goss, Duncan Engeham, Ryan M. Johnson
  • Publication number: 20140193318
    Abstract: 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: Application
    Filed: March 6, 2014
    Publication date: July 10, 2014
    Applicant: 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
  • Patent number: 8695330
    Abstract: 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: Grant
    Filed: October 22, 2010
    Date of Patent: April 15, 2014
    Assignee: 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
  • Publication number: 20110099978
    Abstract: 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: Application
    Filed: October 22, 2010
    Publication date: May 5, 2011
    Applicant: CUMMINS 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