Patents by Inventor Ju Chang LIM

Ju Chang LIM 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: 10215058
    Abstract: Discloses is a turbine power generation system having an emergency operation means and an emergency operation method therefor that are capable of controlling excess heat accumulated during emergency operation, and recycling the accumulated heat. A turbine power generation system includes: an inlet sensor part including a thermometer, a pressure gauge, and a flowmeter that are installed between the heater and the inlet valve and; an emergency discharge part including a branch pipe connected to the steam, and a heat control means installed on the branch pipe. Accordingly, the system and the method are capable of reducing a heat overload during an emergency operation by transferring a heat amount exchanged in the heat storage device to the heat consuming facility, minimizing thermal consumption by recycling the same, and preventing various problems caused by stopping an operation of the turbine power generation system.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: February 26, 2019
    Assignee: POSCO ENERGY CO., LTD.
    Inventors: Sung Keun Oh, Jea Jun Lee, Ju Chang Lim, Sang Hoon Lee, Sang Myeong Lee, Ki Tae Kim, Yong Sik Hah, Chul Kyu Kim
  • Publication number: 20180266249
    Abstract: Disclosed is a steam turbine capable of reducing the load of a bearing supporting a turbine shaft transmitting rotational driving force of a plurality of nozzle-equipped rotary bodies arranged in multiple stages. The steam turbine includes a housing (110); a turbine shaft (120) pivotably supported by a bearing (121) in the housing; and a plurality of dish-shaped nozzle-equipped rotary bodies (130) integrally combined with the turbine shaft (120), provided with one or more nozzle holes (131) from which working fluid is ejected so that the nozzle rotations bodies (130) can be rotated, and stacked in an axial direction of the turbine shaft (120). The nozzle hole (131) is inclined with respect to a normal direction n of the periphery surface of the nozzle-equipped rotary body (130) and is inclined toward an axial direction c of the turbine shaft (120).
    Type: Application
    Filed: August 28, 2015
    Publication date: September 20, 2018
    Inventors: Jea Jun LEE, Sang Hoon LEE, Sung Keun OH, Sang Myeong LEE, Ju Chang LIM, Ki Tae KIM, Young Il CHANG
  • Publication number: 20180142555
    Abstract: Embodiments of the present invention relate to a steam turbine in which unnecessary axial force is reduced. The steam turbine is capable of preventing a working fluid discharged from each nozzle-equipped rotary body from acting as resistance to the nozzle-equipped rotary bodies. The steam turbine includes a housing, a turbine shaft supported pivotably in the housing, a nozzle-equipped rotary body, and a guide panel. The nozzle-equipped rotary body is in the shape of a plurality of disks stacked along the axial direction of the turbine shaft, is integrally coupled to the turbine shaft, and has at least one or more nozzle holes formed therein so as to rotate as the working fluid is ejected. The guide panel is positioned at the rear end in a flow direction of the working fluid of the nozzle-equipped rotary body and fixed to the housing to guide the flow of the working fluid.
    Type: Application
    Filed: January 8, 2018
    Publication date: May 24, 2018
    Applicant: POSCO ENERGY CO., LTD.
    Inventors: Sanghoon Lee, Jeajun Lee, Ju Chang Lim, Sang Myeong Lee, Sungkeun Oh
  • Publication number: 20170328240
    Abstract: Discloses is a turbine power generation system having an emergency operation means and an emergency operation method therefor that are capable of controlling excess heat accumulated during emergency operation, and recycling the accumulated heat. A turbine power generation system includes: an inlet sensor part including a thermometer, a pressure gauge, and a flowmeter that are installed between the heater and the inlet valve and; an emergency discharge part including a branch pipe connected to the steam, and a heat control means installed on the branch pipe. Accordingly, the system and the method are capable of reducing a heat overload during an emergency operation by transferring a heat amount exchanged in the heat storage device to the heat consuming facility, minimizing thermal consumption by recycling the same, and preventing various problems caused by stopping an operation of the turbine power generation system.
    Type: Application
    Filed: August 28, 2015
    Publication date: November 16, 2017
    Applicant: POSCO ENERGY CO., LTD.
    Inventors: Sung Keun OH, Jea Jun LEE, Ju Chang LIM, Sang Hoon LEE, Sang Myeong LEE, Ki Tae KIM, Yong Sik HAH, Chul Kyu KIM
  • Publication number: 20160245085
    Abstract: Disclosed herein is a nozzle rotation body for a reaction-type steam turbine, the rotation body rotating by ejection of fluid from the nozzle. The rotation body includes: a disk-shaped body (210) having an shaft hole that is formed in the center thereof and coupled to a rotary shaft; a guide portion (220), projected in the vertical direction and integrally formed with the body (210) to have a guide side (GS) providing a plurality of exhaust flow paths (221) forming equal angles to each other in the helical direction around the shaft hole; a nozzle piece (230), positioned on each front end of the exhaust flow paths (221) and assembled with the body (210), to have a cross section of the same shape as the cross section of the exhaust flow paths (221) and have a narrow width section; and a fastening unit having at least one bolt (241) and at least one assembly pin (242) coupling the nozzle piece (230) and the body (210).
    Type: Application
    Filed: May 23, 2014
    Publication date: August 25, 2016
    Applicants: POSCO ENERGY CO., LTD., HK TURBINE CO., LTD.
    Inventors: Ju Chang LIM, Sung Keun OH, Jae Jun LEE, Sang Myeong LEE, Sanghoon LEE, Ki Tae KIM, Young IL CHANG, Hyun Joo CHUN, Yong Sik HA