Patents by Inventor Tatsuya HAGITA

Tatsuya HAGITA 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).

  • Publication number: 20230094065
    Abstract: A gas turbine facility includes: a fuel pipe connected to a fuel supply facility; a fuel supply pipe connected to a combustor of a gas turbine; a fuel treating pipe connected to a fuel treating apparatus that treats a fuel; and a three-way valve having an inlet port connected to the fuel pipe, a first outlet port connected to the fuel supply pipe, and a second outlet port connected to the fuel treating pipe.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 30, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Shohei Yoshida, Akinori Hayashi, Tatsuya Hagita, Hiroyuki Takeishi, Toshiyuki Hiraoka
  • Patent number: 11391168
    Abstract: A gas turbine combustor is equipped with a transition piece assembly of the combustor, the transition piece assembly includes a transition piece, a frame which is installed on the downstream side (an outlet part) of the transition piece and a seal member which is installed on a coupled part of the aforementioned frame and a turbine-side stator vane part and blocks flowing of compressed air from a compressor into the aforementioned turbine side through a gap of the coupled part, and a projection member is provided on an outer circumference of the aforementioned frame, a movement suppression mechanism for matching the aforementioned projection member and suppressing possible movement of the aforementioned seal member is provided on the aforementioned seal member, the movement suppression mechanism and the aforementioned projection members fit together and thereby the aforementioned seal member is fixed to the frame.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: July 19, 2022
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tatsuya Hagita, Noboru Okuyama, Yasuhiro Wada, Yasuyuki Watanabe, Shohei Yoshida
  • Publication number: 20220099033
    Abstract: A gas turbine including a fuel gas supply system to supply fuel gas via a fuel piping to a gas turbine combustor, a pressure control valve installed halfway along the fuel piping, a flow control valve installed in the fuel piping at downstream of the pressure control valve, and a control device configured that in a case where a flow rate change occurs in the fuel gas flowing through the fuel gas supply system, along with a tendency of change in an opening degree of the pressure control valve or a pressure P1 at upstream of the pressure control valve, a command value of the flow rate of the fuel gas that is determined based on a demand value of a gas turbine load is adjusted so that the change is suppressed in the opening degree of the pressure control valve or the pressure P1.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 31, 2022
    Inventors: Tatsuya Hagita, Keita Naito, Mitsuhiro Karishuku, Masaya Kato, Satoshi Tanimura
  • Patent number: 11209163
    Abstract: A gas turbine combustor that mixes fuel with compressed air guided from a compressor to burn the fuel mixed with the compressed air to generate a combustion gas and supplies the generated combustion gas to a turbine is provided with: an inner cylinder forming a combustion chamber thereinside; an outer cylinder that covers the inner cylinder and forms, between the outer cylinder and the inner cylinder, a cylindrical outer peripheral flow path through which the compressed air flows; an end cover closing the end of the outer cylinder on an opposite side from a side the turbine is located; and a turn guide provided at the end on the end cover side of the inner cylinder, protruding from the outer peripheral surface of the inner cylinder toward the outer cylinder and smoothly connected to the inner peripheral surface of the inner cylinder.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: December 28, 2021
    Assignee: Mitsubishi Power, Ltd.
    Inventors: Tomoki Uruno, Keita Yunoki, Kazuki Abe, Tomohiro Asai, Mitsuhiro Karishuku, Tatsuya Hagita, Shohei Yoshida
  • Publication number: 20200200389
    Abstract: A gas turbine combustor that mixes fuel with compressed air guided from a compressor to burn the fuel mixed with the compressed air to generate a combustion gas and supplies the generated combustion gas to a turbine is provided with: an inner cylinder forming a combustion chamber thereinside; an outer cylinder that covers the inner cylinder and forms, between the outer cylinder and the inner cylinder, a cylindrical outer peripheral flow path through which the compressed air flows; an end cover closing the end of the outer cylinder on an opposite side from a side the turbine is located; and a turn guide provided at the end on the end cover side of the inner cylinder, protruding from the outer peripheral surface of the inner cylinder toward the outer cylinder and smoothly connected to the inner peripheral surface of the inner cylinder.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 25, 2020
    Inventors: Tomoki URUNO, Keita YUNOKI, Kazuki ABE, Tomohiro ASAI, Mitsuhiro KARISHUKU, Tatsuya HAGITA, Shohei YOSHIDA
  • Publication number: 20200072466
    Abstract: The present invention provides a gas turbine combustor which reduces NOx emissions for a hydrogen-containing fuel, is improved in reliability and realizes stable operation. The gas turbine combustor of the present invention includes a combustion chamber which burns a fuel and air, an air hole plate which is located on an upstream side of the combustion chamber and has air holes which are concentrically arranged plurally in line and plurally in number, and fuel nozzles which are arranged plurally in line and plurally in number, and a fuel nozzle inner wall has a fuel nozzle tapered shape which extends in an outer circumferential direction on a leading end part of the fuel nozzle.
    Type: Application
    Filed: August 6, 2019
    Publication date: March 5, 2020
    Inventors: Yasuhiro AKIYAMA, Yuki KAMIKAWA, Tomohiro ASAI, Mitsuhiro KARISHUKU, Tatsuya HAGITA, Yoshinori MATSUBARA
  • Publication number: 20190264571
    Abstract: A gas turbine combustor is equipped with a transition piece assembly of the combustor, the transition piece assembly includes a transition piece, a frame which is installed on the downstream side (an outlet part) of the transition piece and a seal member which is installed on a coupled part of the aforementioned frame and a turbine-side stator vane part and blocks flowing of compressed air from a compressor into the aforementioned turbine side through a gap of the coupled part, and a projection member is provided on an outer circumference of the aforementioned frame, a movement suppression mechanism for matching the aforementioned projection member and suppressing possible movement of the aforementioned seal member is provided on the aforementioned seal member, the movement suppression mechanism and the aforementioned projection members fit together and thereby the aforementioned seal member is fixed to the frame.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 29, 2019
    Inventors: Tatsuya HAGITA, Noboru OKUYAMA, Yasuhiro WADA, Yasuyuki WATANABE, Shohei YOSHIDA