Patents by Inventor Yuko Suenaga

Yuko Suenaga 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).

  • Blade cooling structure of gas turbine
    Patent number: 8556583
    Abstract: A blade cooling structure of a gas turbine, which can reduce the pressure loss of a cooling medium without decreasing the heat transfer coefficient, is provided. The blade cooling structure comprises a cooling passage (15) for flowing cooling air (A) from a proximal end portion (12) toward a blade portion (14) of a moving blade (11), a plurality of turbulators (21) arranged, on both wall surfaces of the cooling passage (15) opposing each other, in such a manner as to be inclined with respect to the flowing direction of the cooling air (A), and a plurality of dimples (22) formed in a downstream region (N) downstream of a center position (O) in the flowing direction of the cooling air (A) on the wall surface of the cooling passage (15) between the adjacent turbulators (21).
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: October 15, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Daigo Fujimura, Hideaki Sugishita, Masaaki Matsuura, Hiroyuki Yamamoto, Shunsuke Torii, Satoshi Hada, Kiyoshi Suenaga, Yuko Suenaga
  • BLADE COOLING STRUCTURE OF GAS TURBINE
    Publication number: 20100226791
    Abstract: A blade cooling structure of a gas turbine, which can reduce the pressure loss of a cooling medium without decreasing the heat transfer coefficient, is provided. The blade cooling structure comprises a cooling passage (15) for flowing cooling air (A) from a proximal end portion (12) toward a blade portion (14) of a moving blade (11), a plurality of turbulators (21) arranged, on both wall surfaces of the cooling passage (15) opposing each other, in such a manner as to be inclined with respect to the flowing direction of the cooling air (A), and a plurality of dimples (22) formed in a downstream region (N) downstream of a center position (O) in the flowing direction of the cooling air (A) on the wall surface of the cooling passage (15) between the adjacent turbulators (21).
    Type: Application
    Filed: August 30, 2007
    Publication date: September 9, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Daigo Fujimura, Hideaki Sugishita, Masaaki Matsuura, Hiroyuki Yamamoto, Shunsuke Torii, Satoshi Hada, Kiyoshi Suenaga, Yuko Suenaga