Patents by Inventor Scott Boehmer

Scott Boehmer 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).

  • Electric heating assisted passive and active regeneration for efficient emission controls of diesel engines
    Patent number: 9115616
    Abstract: A method of heating an exhaust gas in an exhaust aftertreatment system including a Diesel Oxidation Catalyst (DOC) and a diesel particulate filter (DPF) is provided. The method includes heating the exhaust gas to a predetermined temperature to increase NO2 generation in the DOC when the DPF is not actively regenerated, and heating the exhaust gas to reduce an exhaust temperature gradient when the DPF is actively regenerated. The exhaust temperature gradient is reduced by providing more heat proximate a wall of an exhaust conduit and less heat proximate a center of the exhaust conduit.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: August 25, 2015
    Assignee: Watlow Electric Manufacturing
    Inventors: Wenzhong Zhang, Mike Bange, Scott Boehmer, Magdi Khair, Julian Tan