Patents by Inventor Mingchao LIU

Mingchao LIU 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).

  • Patent number: 11111864
    Abstract: The present disclosure discloses an intake oxygen concentration control system suitable for an engine with lean NOx trapping technology. The system adopts an exhaust turbocharging device to provide a pressure difference for an oxygen-enriched membrane to generate oxygen-rich and oxygen-deficient gases, and controls the intake oxygen concentration of different cylinders by adjusting the opening of flow control valves to match lean and rich combustion cycles of a lean NOx trapping system. In a lean combustion cycle, all four cylinders are filled with an oxygen-rich gas, which can make the combustion more complete and improve the thermal efficiency and fuel economy.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: September 7, 2021
    Assignee: Tianjin University
    Inventors: Haifeng Liu, Can Wang, Mingchao Liu, Mingfa Yao, Zunqing Zheng, Hu Wang
  • Publication number: 20210123388
    Abstract: The present disclosure discloses an intake oxygen concentration control system suitable for an engine with lean NOx trapping technology. The system adopts an exhaust turbocharging device to provide a pressure difference for an oxygen-enriched membrane to generate oxygen-rich and oxygen-deficient gases, and controls the intake oxygen concentration of different cylinders by adjusting the opening of flow control valves to match lean and rich combustion cycles of a lean NOx trapping system. In a lean combustion cycle, all four cylinders are filled with an oxygen-rich gas, which can make the combustion more complete and improve the thermal efficiency and fuel economy.
    Type: Application
    Filed: October 23, 2020
    Publication date: April 29, 2021
    Inventors: Haifeng LIU, Can WANG, Mingchao LIU, Mingfa YAO, Zunqing ZHENG, Hu WANG
  • Patent number: D1069035
    Type: Grant
    Filed: October 1, 2024
    Date of Patent: April 1, 2025
    Inventor: Mingchao Liu