Patents by Inventor Chang Seong Ryu

Chang Seong Ryu 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).

  • Selective catalytic reduction and catalytic regeneration system
    Patent number: 9482130
    Abstract: A selective catalytic reduction and catalytic regeneration system includes: a main exhaust flow path; a reactor which is installed on the main exhaust flow path; a bypass exhaust flow path which branches off from the main exhaust flow path, and bypasses the reactor; an ammonia injection unit, which injects ammonia to the exhaust gas which is to flow into the reactor; a hydrolysis chamber, which produces ammonia to be supplied to the ammonia injection unit; a branch flow path, which branches off from the main exhaust flow path at a front side of the reactor; a recirculation flow path, which branches off from the main exhaust flow path at a rear side of the reactor, and merges with the branch flow path; and a multifunctional flow path, which connects the hydrolysis chamber with a point where the branch flow path and the recirculation flow path merge together.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: November 1, 2016
    Assignee: Doosan Engine Co., Ltd.
    Inventors: Jae Moon Lee, Sang Jin Kim, Chang Seong Ryu, Chang Hee Lee, Gyun Lee
  • SELECTIVE CATALYTIC REDUCTION AND CATALYTIC REGENERATION SYSTEM
    Publication number: 20160131000
    Abstract: A selective catalytic reduction and catalytic regeneration system includes: a main exhaust flow path; a reactor which is installed on the main exhaust flow path; a bypass exhaust flow path which branches off from the main exhaust flow path, and bypasses the reactor; an ammonia injection unit, which injects ammonia to the exhaust gas which is to flow into the reactor; a hydrolysis chamber, which produces ammonia to be supplied to the ammonia injection unit; a branch flow path, which branches off from the main exhaust flow path at a front side of the reactor; a recirculation flow path, which branches off from the main exhaust flow path at a rear side of the reactor, and merges with the branch flow path; and a multifunctional flow path, which connects the hydrolysis chamber with a point where the branch flow path and the recirculation flow path merge together.
    Type: Application
    Filed: December 6, 2013
    Publication date: May 12, 2016
    Inventors: Jae Moon Lee, Sang Jin Kim, Chang Seong Ryu, Chang Hee Lee, Gyun Lee
  • Cutting insert
    Patent number: D1020824
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: April 2, 2024
    Assignee: TaeguTec Ltd.
    Inventors: Chang Gyu Park, Su Jin Ryu, Jae Seong Kim