Patents by Inventor Ikuo Onaka

Ikuo Onaka 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).

  • Power generation system
    Patent number: 7827793
    Abstract: To provide a power generation system that prevents a reduction in the efficiency of a steam turbine due to an aperture adjustment of a turbine governing valve. There is provided a power generation system comprising: a furnace in which a solid fuel or a liquid fuel is combusted; a steam turbine that generates electric power by rotating a turbine rotor using steam generated by the furnace; a superheater that is provided between the furnace and the steam turbine and that superheats the steam; a first steam piping that connects the furnace to the superheater; a second steam piping that connects the superheater to the steam turbine; a first valve provided in the first steam piping; a turbine governing valve provided in the second steam piping; and a control section that adjusts an aperture of the first valve according to a load of the steam turbine.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: November 9, 2010
    Assignees: The Tokyo Electric Power Company, Incorporated, Mitsubishi Heavy Industries, Ltd.
    Inventors: Ikuo Onaka, Yoshiaki Kouno, Toshiki Matsuoka, Taishi Muraki
  • Power generation system
    Publication number: 20080236139
    Abstract: To provide a power generation system that prevents a reduction in the efficiency of a steam turbine due to an aperture adjustment of a turbine governing valve. There is provided a power generation system comprising: a furnace in which a solid fuel or a liquid fuel is combusted; a steam turbine that generates electric power by rotating a turbine rotor using steam generated by the furnace; a superheater that is provided between the furnace and the steam turbine and that superheats the steam; a first steam piping that connects the furnace to the superheater; a second steam piping that connects the superheater to the steam turbine; a first valve provided in the first steam piping; a turbine governing valve provided in the second steam piping; and a control section that adjusts an aperture of the first valve according to a load of the steam turbine.
    Type: Application
    Filed: November 19, 2007
    Publication date: October 2, 2008
    Applicants: THE TOKYO ELECTRIC POWER COMPANY, INCORPORATED, MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Ikuo Onaka, Yoshiaki Kouno, Toshiki Matsuoka, Taishi Muraki