Patents by Inventor Harold Sun

Harold Sun 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).

  • SERIES/PARALLEL TURBOCHARGERS AND SWITCHABLE HIGH/LOW PRESSURE EGR FOR INTERNAL COMBUSTION ENGINES
    Publication number: 20060021347
    Abstract: Systems and methods for turbocharging an internal combustion engine include operating two turbochargers in a series configuration for a first operating region and a parallel configuration for a second operating region. Systems and methods for controlling exhaust gas recirculation (EGR) in a turbocharged internal combustion engine provide low pressure EGR upstream of a compressor inlet for a first operating region and high pressure EGR downstream of a compressor outlet for a second operating range to further improve turbocharger operating margin and overall efficiency.
    Type: Application
    Filed: July 28, 2004
    Publication date: February 2, 2006
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Harold Sun, William Ruona, Richard Baker, Edward King