Title:
TURBINE PART
Document Type and Number:
WIPO Patent Application WO/2007/052337
Kind Code:
A1
Abstract:
A large number of film-cooling holes (13) are formed in that portion of a turbine part
body (3) which is exposed to high- temperature gas. Each film-cooling hole (13)
has a straight hole section (15) formed in a portion on the inner wall surface (5a)
side of the turbine part body (3) and an enlarged hole section (17) formed in a portion
on the outer wall surface (5b) side of the turbine part body (3). Further, each
film-cooling hole (13) is formed such that the inclination of an ejection surface
(17p) of the enlarged hole section (17) increases gradually from the center in
the width direction (L3) of the hole toward the opposite ends of the hole, the inclination
being defined with an imaginary plane (VP) as the standard, the imaginary plane
being set in parallel to two directions that are the axis direction (L2) of the
straight hole section (15) and the hole width direction (L3).
Inventors:
OKITA YOJI
Application Number:
PCT/JP2005/020080
Publication Date:
May 10, 2007
Filing Date:
November 01, 2005
Export Citation:
Assignee:
ISHIKAWAJIMA HARIMA HEAVY IND (JP)
OKITA YOJI
OKITA YOJI
International Classes:
F01D9/02
Foreign References:
| JP2000230402A | 2000-08-22 | |||
| JP2005180339A | 2005-07-07 |
Other References:
See also references of EP 1967696A4
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (2-8 Toranomon 1-chom, Minato-ku Tokyo 01, JP)
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