Patents by Inventor Yong Sik Hah

Yong Sik Hah 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: 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
  • Patent number: 9617855
    Abstract: A reaction-type turbine according to the present invention is configured in that a portion of a rotary shaft module which penetrates through a side with an inlet portion of a housing has a diameter larger than the diameters of other portions. Thus, the pressurized area in which a working fluid applies pressure to a rotary shaft in the direction opposite to the working fluid flow direction increases, thus increasing force in the direction opposite to the working fluid flow direction. As a result, axial direction force applied to the rotary shaft in the working fluid flow direction may be reduced. Therefore, the reaction-type turbine of the present invention has the advantages of eliminating the necessity of installing a separate thrust bearing for supporting axial force in the working fluid flow direction.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: April 11, 2017
    Assignee: HK TURBINE CO., LTD.
    Inventors: Young Il Chang, Ki Tae Kim, Yong Sik Hah, Jung Hoon Kim
  • Publication number: 20150139781
    Abstract: A reaction turbine, according to the present invention, includes first and second rotor plates, which are coupled together to form an integrated rotor, and an inner flow path including a combination of first and second flow paths, which are formed on the surfaces of the first and second rotor plates that face each other, respectively, thereby enabling easier manufacturing into a form desired by a designer by eliminating the limitation of a cross-sectional shape of the inner flow path. In addition, a cross section of each of the first and second flow paths can be formed into a semicircular shape thus yielding a circular shape for the inner flow path, which is formed by combining the first and second flow paths, thereby effectively enhancing the performance of a turbine by minimizing pressure loss of a working fluid that passes through the inner flow path.
    Type: Application
    Filed: April 18, 2013
    Publication date: May 21, 2015
    Inventors: Young Il Chang, Yong Sik Hah, Jung Hoon Kim, Ki Tae Kim
  • Publication number: 20140255154
    Abstract: A reaction-type turbine according to the present invention is configured in that a portion of a rotary shaft module which penetrates through a side with an inlet portion of a housing has a diameter larger than the diameters of other portions. Thus, the pressurized area in which a working fluid applies pressure to a rotary shaft in the direction opposite to the working fluid flow direction increases, thus increasing force in the direction opposite to the working fluid flow direction. As a result, axial direction force applied to the rotary shaft in the working fluid flow direction may be reduced. Therefore, the reaction-type turbine of the present invention has the advantages of eliminating the necessity of installing a separate thrust bearing for supporting axial force in the working fluid flow direction.
    Type: Application
    Filed: October 12, 2012
    Publication date: September 11, 2014
    Applicant: HK TURBINE CO., LTD.
    Inventors: Young Il Chang, Ki Tae Kim, Yong Sik Hah, Jung Hoon Kim