Patents by Inventor Seung Jae Yi

Seung Jae Yi 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).

  • After treatment system and after treatment method for lean-burn engine
    Patent number: 10830118
    Abstract: An after treatment method for a lean-burn engine is disclosed. The after treatment method is configured to control an after treatment system sequentially equipped with an ammonia production catalyst module, a selective catalytic reduction (SCR) catalyst, and a CO clean-up catalyst (CUC) on an exhaust pipe through which an exhaust gas flows and which is connected to a lean-burn engine. In the after treatment method, a rich air/fuel ratio (AFR) is controlled in multiple phases in response to detecting that conversion to the rich AFR is desired.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: November 10, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Nahm Roh Joo, ChangHo Jung, Chang Hwan Kim, Seung Jae Yi
  • AFTER TREATMENT SYSTEM AND AFTER TREATMENT METHOD FOR LEAN-BURN ENGINE
    Publication number: 20200248608
    Abstract: An after treatment method for a lean-burn engine is disclosed. The after treatment method is configured to control an after treatment system sequentially equipped with an ammonia production catalyst module, a selective catalytic reduction (SCR) catalyst, and a CO clean-up catalyst (CUC) on an exhaust pipe through which an exhaust gas flows and which is connected to a lean-burn engine. In the after treatment method, a rich air/fuel ratio (AFR) is controlled in multiple phases in response to detecting that conversion to the rich AFR is desired.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 6, 2020
    Applicants: Hyundai Motor Company, KIA Motors Corporation
    Inventors: Nahm Roh Joo, ChangHo Jung, Chang Hwan Kim, Seung Jae Yi