Patents by Inventor Tesuji Fujimura

Tesuji Fujimura 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).

  • Dovetail structure of fan
    Patent number: 7918652
    Abstract: The invention provides a dovetail structure of a fan which attaches a fan 20 having an inlet hub diameter smaller than an outlet hub diameter to a portion around a discoid disc rotationally driven by a turbine. The disc 10 has a plurality of dovetail grooves 12 extending at a fixed angle ?1 with respect to an axis 1 of a rotation axis from a leading edge 10a to a trailing edge 10b thereof, and spaced at a fixed angle in a peripheral direction. The fan 20 has a dovetail portion 22 extending at the same angle as an angle of the dovetail groove and capable of being fitted to the dovetail groove, in an inner end thereof.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: April 5, 2011
    Assignee: Ishikawajima-Harima Heavy Industries Co. Ltd.
    Inventor: Tesuji Fujimura
  • DOVETAIL STRUCTURE OF FAN
    Publication number: 20070217914
    Abstract: The invention provides a dovetail structure of a fan which attaches a fan 20 having an inlet hub diameter smaller than an outlet hub diameter to a portion around a discoid disc rotationally driven by a turbine. The disc 10 has a plurality of dovetail grooves 12 extending at a fixed angle ?1 with respect to an axis 1 of a rotation axis from a leading edge 10a to a trailing edge 10b thereof, and spaced at a fixed angle in a peripheral direction. The fan 20 has a dovetail portion 22 extending at the same angle as an angle of the dovetail groove and capable of being fitted to the dovetail groove, in an inner end thereof.
    Type: Application
    Filed: February 28, 2007
    Publication date: September 20, 2007
    Applicant: ISHIKAWAJIMA-HARIMA HEAVY INDUSTRIES CO., LTD.
    Inventor: Tesuji Fujimura