Patents by Inventor Yoshiki Torii

Yoshiki Torii 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).

  • Method to detect a contaminated fuel injector
    Patent number: 7370521
    Abstract: A method of diagnosing a fuel injector of an engine system as contaminated is provided. The method comprises: recording a first fuel injection quantity; commanding a fuel rail pressure high; recording a second fuel injection quantity while the fuel rail pressure is high; and diagnosing the fuel injector as contaminated if the first fuel injection quantity is greater than the second fuel injection quantity.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: May 13, 2008
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Nils Sandmann, Noboru Takahashi, Douglas E. Trombley, Jeffrey J. Allen, Dietmar Mueller, Thomas Wagner, Toshio Ichimasa, Yoshiki Torii