Patents by Inventor Shin AKAZAWA

Shin AKAZAWA 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).

  • Combustor replacement method and gas turbine plant
    Patent number: 10612783
    Abstract: A combustor replacement method and a gas turbine plant capable of efficiently replacing a combustor using an existing facility. The combustor replacement method includes a step of separating, from a plurality of fuel supply systems, a first combustor that includes a plurality of nozzle systems connected to any of the plurality of fuel supply systems and supplied with fuel from the connected fuel supply systems, and removing the first combustor from a gas turbine plant. The method includes a step of attaching a second combustor that includes fewer nozzle systems than the first combustor to the gas turbine plant, and a step of providing communication between the fuel supply systems connected to the same nozzle system of the second combustor by a coupling pipe, and coupling the fuel supply systems and the second combustor.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: April 7, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Keita Fujii, Shin Akazawa, Nobukazu Ishii, Masahiro Matsubara, Masayuki Murakami, Fuminori Fujii, Hiroshi Tanabe, Masaru Takamatsu
  • COMBUSTOR REPLACEMENT METHOD AND GAS TURBINE PLANT
    Publication number: 20170030583
    Abstract: A combustor replacement method and a gas turbine plant capable of efficiently replacing a combustor using an existing facility. The combustor replacement method includes a step of separating, from a plurality of fuel supply systems, a first combustor that includes a plurality of nozzle systems connected to any of the plurality of fuel supply systems and supplied with fuel from the connected fuel supply systems, and removing the first combustor from a gas turbine plant. The method includes a step of attaching a second combustor that includes fewer nozzle systems than the first combustor to the gas turbine plant, and a step of providing communication between the fuel supply systems connected to the same nozzle system of the second combustor by a coupling pipe, and coupling the fuel supply systems and the second combustor.
    Type: Application
    Filed: May 19, 2015
    Publication date: February 2, 2017
    Inventors: Keita FUJII, Shin AKAZAWA, Nobukazu ISHII, Masahiro MATSUBARA, Masayuki MURAKAMI, Fuminori FUJII, Hiroshi TANABE, Masaru TAKAMATSU
  • GAS TURBINE COOLING SYSTEM, GAS TURBINE PLANT EQUIPPED WITH THE SAME AND METHOD OF COOLING HIGH-TEMPERATURE SECTION OF GAS TURBINE
    Publication number: 20160326961
    Abstract: A gas turbine cooling system includes an organic Rankine cycle in which a cycle medium repeatedly circulates through condensation and evaporation, an air-extraction line configured to extract compressed air from a compressor of a gas turbine, a cooling apparatus for cooling the compressed air while heating and evaporating the cycle medium condensed in the organic Rankine cycle using heat of the compressed air passing through the air-extraction line, and a cooling air line configured to guide the compressed air cooled by the cooling apparatus to a high temperature section of the gas turbine.
    Type: Application
    Filed: March 25, 2014
    Publication date: November 10, 2016
    Inventors: Yasuoki TOMITA, Eiji AKITA, Naoki SAKAGAMI, Takaaki NAGAKAWA, Jiro ASAKUNO, Masaru TAKAMATSU, Shin AKAZAWA, Yasuhiro TAKASHIMA