Patents by Inventor Eun-Geon YUK

Eun-Geon YUK 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).

  • Device for cooling and heating urea solution for construction machine, and control method therefor
    Patent number: 10337391
    Abstract: A device for cooling and heating a urea solution to be injected into exhaust gas discharged from an engine in order to reduce nitrogen oxides in the exhaust gas includes an engine including a cooling fan, a coolant pump, and a main cooler; a urea solution tank storing the urea solution and having an embedded heat exchange pipe through which first coolant and second coolant circulates; an additional coolant tank storing the second coolant; a water pump supplying the second coolant from the additional coolant tank to the heat exchange pipe; a valve configured to be opened or closed in order to supply the first coolant and the second coolant to the heat exchange pipe through a supply line, and to move the first coolant and the second coolant, which are discharged from the heat exchange pipe through a discharge line, to rise coolant pump and the additional coolant tank, respectively and a controller for supplying the second coolant to the heat exchange pipe through the supply line when the urea solution temperatu
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: July 2, 2019
    Assignee: Volvo Construction Equipment AB
    Inventors: Dong-Myoung Choi, Yu-Hee Lee, Eun-Geon Yuk, Sung-Hwan Shin, Min-Su Choi
  • DEVICE FOR COOLING AND HEATING UREA SOLUTION FOR CONSTRUCTION MACHINE, AND CONTROL METHOD THEREFOR
    Publication number: 20180209325
    Abstract: A device for cooling and heating a urea solution to be injected into exhaust gas discharged from an engine in order to reduce nitrogen oxides in the exhaust gas includes an engine including a cooling fan, a coolant pump, and a main cooler; a urea solution tank storing the urea solution and having an embedded heat exchange pipe through which first coolant and second coolant circulates; an additional coolant tank storing the second coolant; a water pump supplying the second coolant from the additional coolant tank to the heat exchange pipe; a valve configured to be opened or closed in order to supply the first coolant and the second coolant to the heat exchange pipe through a supply line, and to move the first coolant and the second coolant, which are discharged from the heat exchange pipe through a discharge line, to rise coolant pump and the additional coolant tank, respectively and a controller for supplying the second coolant to the heat exchange pipe through the supply line when the urea solution temperatu
    Type: Application
    Filed: July 29, 2015
    Publication date: July 26, 2018
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Dong-Myoung CHOI, Yu-Hee LEE, Eun-Geon YUK, Sung-Hwan SHIN, Min-Su CHOI