Title:
TURBINE BLADE, TURBINE, AND METHOD FOR TUNING CHARACTERISTIC FREQUENCY OF TURBINE BLADE
Document Type and Number:
WIPO Patent Application WO/2019/188780
Kind Code:
A1
Abstract:
This turbine blade comprises a platform, a blade-shaped part having a pressure surface and a negative-pressure surface that extend in a blade-height direction from the platform and that also extend between a leading edge and a trailing edge, a blade root part that is positioned on the side opposite in the blade-height direction from the blade-shaped part with the platform therebetween and that has a bearing surface, and a shank positioned between the platform and the blade root part, the shank having a cross section in which a line segment, which is orthogonal to the blade-height direction of the blade-shaped part and which connects a widthwise center position of an end of the shank at the leading-edge side and a widthwise center position of an end of the shank at the trailing-edge side, is inclined relative to a center line between a pressure-surface-side contour of the blade root part and a negative-pressure-surface-side contour of the blade root part.
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| WO/2015/088620 | ROTATING COMPONENT BALANCE RING |
Inventors:
FUKUI YOSHIO (JP)
KUWABARA MASAMITSU (JP)
KUWABARA MASAMITSU (JP)
Application Number:
PCT/JP2019/012080
Publication Date:
October 03, 2019
Filing Date:
March 22, 2019
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F01D5/10; F01D5/16
Foreign References:
| JP2007040296A | 2007-02-15 | |||
| JP2007537385A | 2007-12-20 | |||
| JP2005233141A | 2005-09-02 | |||
| JP2012052526A | 2012-03-15 |
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
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