Patents by Inventor Mingjie Tu

Mingjie Tu 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).

  • Hydrocarbon adsorption and desorption control in vehicle exhaust systems using HO traps
    Patent number: 11802502
    Abstract: An exhaust system includes a light-off catalyst, an exhaust system component, and at least one H2O trap. The exhaust system component is upstream from the light-off catalyst and includes catalyst material, the catalyst material configured to store hydrocarbons during a period when the light-off catalyst is warming up to a light-off temperature. The at least one H2O trap is at or upstream from the exhaust system component and is configured to perform H2O adsorption and desorption to increase a length of time for the exhaust system component to reach a hydrocarbon release temperature and prevent the exhaust system component from reaching the hydrocarbon release temperature prior to the light-off catalyst reaching the light-off temperature.
    Type: Grant
    Filed: January 30, 2023
    Date of Patent: October 31, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Patrick G. Szymkowicz, Mingjie Tu, Yuntao Gu, Calvin Thomas