Patents by Inventor Byoung Yong Cho

Byoung Yong Cho 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).

  • Method for preventing choking of urea injection nozzle on SCR system
    Patent number: 8813475
    Abstract: A method for preventing choking of a urea injection nozzle in after run operation on a SCR system which supplies urea stored in a urea tank through a supply module, a urea injection nozzle and a urea line connecting the supply module and the urea injection nozzle, the method for preventing choking of a urea injection nozzle includes comparing pressure within the supply module with a first predetermined pressure (Pa), open controlling the urea injection nozzle when the pressure in the supply module is higher than the first predetermined pressure (Pa) or repeating open/close controlling the urea injection nozzle when the pressure in the supply module is lower than the first predetermined pressure (Pa), pressure equilibrium which recovers pressure in the supply module and stopping the after run operation when the balancing pressure is completed.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: August 26, 2014
    Assignee: Hyundai Motor Company
    Inventors: Byoung Yong Cho, Jaeseok Shin
  • METHOD FOR PREVENTING CHOKING OF UREA INJECTION NOZZLE ON SCR SYSTEM
    Publication number: 20130047585
    Abstract: A method for preventing choking of a urea injection nozzle in after run operation on a SCR system which supplies urea stored in a urea tank through a supply module, a urea injection nozzle and a urea line connecting the supply module and the urea injection nozzle, the method for preventing choking of a urea injection nozzle includes comparing pressure within the supply module with a first predetermined pressure (Pa), open controlling the urea injection nozzle when the pressure in the supply module is higher than the first predetermined pressure (Pa) or repeating open/close controlling the urea injection nozzle when the pressure in the supply module is lower than the first predetermined pressure (Pa), pressure equilibrium which recovers pressure in the supply module and stopping the after run operation when the balancing pressure is completed.
    Type: Application
    Filed: December 8, 2011
    Publication date: February 28, 2013
    Applicant: Hyundai Motor Company
    Inventors: Byoung Yong Cho, Jaeseok Shin