Patents by Inventor Xin Ouang

Xin Ouang 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).

  • J-groove for crack suppression
    Patent number: 10753266
    Abstract: An exhaust manifold for an internal combustion engine includes a first exhaust port, a second exhaust port, and a septum that separates the first exhaust port and the second exhaust port. The septum has a surface with a J-groove to relieve stresses by looping a tip of a crack initiated by the J-groove back into a stress field of the J-groove.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: August 25, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michael A. Karram, Xin Ouang
  • J-GROOVE FOR CRACK SUPPRESSION
    Publication number: 20190353079
    Abstract: An exhaust manifold for an internal combustion engine includes a first exhaust port, a second exhaust port, and a septum that separates the first exhaust port and the second exhaust port. The septum has a surface with a J-groove to relieve stresses by looping a tip of a crack initiated by the J-groove back into a stress field of the J-groove.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 21, 2019
    Inventors: Michael A. Karram, Xin Ouang