Patents by Inventor William Douglas Glenn

William Douglas Glenn 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).

  • System and method for reducing particulate matter emission in diesel exhaust gas
    Patent number: 8240138
    Abstract: An aftertreatment system is provided for reducing particulate matter emission and chemical emissions in diesel engine exhaust gas. The system includes a diesel particulate filter including a plurality of diesel particulate filter units configured to engage respective cross-sectional regions of the diesel engine exhaust gas including particulate matter. Each diesel particulate filter unit includes a plurality of channels aligned in a flow direction of the diesel engine exhaust gas. The channels are selectively configured with a distinct cross-sectional area density. Additionally, each diesel particulate filter unit includes a plurality of walls separating adjacent channels of the plurality of channels, where the walls have a respective thickness. A plurality of pores are configured to vacate a distinct ratio of the area of the walls.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: August 14, 2012
    Assignee: General Electric Company
    Inventors: Shuguang Lu, Roy Primus, William Douglas Glenn
  • SYSTEM AND METHOD FOR REDUCING PARTICULATE MATTER EMISSION IN DIESEL EXHAUST GAS
    Publication number: 20090044531
    Abstract: An aftertreatment system is provided for reducing particulate matter emission and chemical emissions in diesel engine exhaust gas. The system includes a diesel particulate filter including a plurality of diesel particulate filter units configured to engage respective cross-sectional regions of the diesel engine exhaust gas including particulate matter. Each diesel particulate filter unit includes a plurality of channels aligned in a flow direction of the diesel engine exhaust gas. The channels are selectively configured with a distinct cross-sectional area density. Additionally, each diesel particulate filter unit includes a plurality of walls separating adjacent channels of the plurality of channels, where the walls have a respective thickness. A plurality of pores are configured to vacate a distinct ratio of the area of the walls.
    Type: Application
    Filed: August 14, 2007
    Publication date: February 19, 2009
    Inventors: SHUGUANG LU, ROY PRIMUS, WILLIAM DOUGLAS GLENN
  • Mid-combustion fluid injection for NOx reduction
    Publication number: 20030226351
    Abstract: A method of reducing the amount of NOx produced by a diesel engine, by injecting a heat sink fluid into the combustion chamber after commencement of a combustion cycle, and before the natural cessation of NOx production during the same combustion cycle, thereby altering the NOx formation cycle associated with the combustion cycle.
    Type: Application
    Filed: January 30, 2003
    Publication date: December 11, 2003
    Inventor: William Douglas Glenn