Patents by Inventor Masahiro Narukawa

Masahiro Narukawa 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).

  • Circulating fluidized bed-type gasification furnace and fluid medium flow rate control method
    Patent number: 9528053
    Abstract: A gasification furnace (110) of a circulation fluidized bed-type gasification furnace (100) forms a fluid medium into a fluid bed, and produces gasified gas by gasifying an input gasification raw material using heat from the fluid medium. A combustion furnace (102) heats the fluid medium output from the gasification furnace. A flow rate adjuster (106) distributes the fluid medium heated in the combustion furnace to the gasification furnace and a buffer section (112). In this manner, irrespective of the flow rate of the fluid medium in the entire circulation fluidized bed-type gasification furnace (100), the buffer section (112) enables the fluid medium to bypass to the combustion furnace. As a result, the flow rate of the fluid medium in the gasification furnace (110) can be maintained at a desired flow rate.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: December 27, 2016
    Assignee: IHI CORPORATION
    Inventors: Masahiro Narukawa, Makoto Takafuji, Toshiyuki Suda
  • CIRCULATING FLUIDIZED BED-TYPE GASIFICATION FURNACE AND FLUID MEDIUM FLOW RATE CONTROL METHOD
    Publication number: 20140091260
    Abstract: A gasification furnace (110) of a circulation fluidized bed-type gasification furnace (100) forms a fluid medium into a fluid bed, and produces gasified gas by gasifying an input gasification raw material using heat from the fluid medium. A combustion furnace (102) heats the fluid medium output from the gasification furnace. A flow rate adjuster (106) distributes the fluid medium heated in the combustion furnace to the gasification furnace and a buffer section (112). In this manner, irrespective of the flow rate of the fluid medium in the entire circulation fluidized bed-type gasification furnace (100), the buffer section (112) enables the fluid medium to bypass to the combustion furnace. As a result, the flow rate of the fluid medium in the gasification furnace (110) can be maintained at a desired flow rate.
    Type: Application
    Filed: June 18, 2012
    Publication date: April 3, 2014
    Inventors: Masahiro Narukawa, Makoto Takafuji, Toshiyuki Suda