Title:
STRUCTURE FOR COOLING TURBINE BLADE
Document Type and Number:
WIPO Patent Application WO/2018/135283
Kind Code:
A1
Abstract:
In the present invention, a structure for cooling a turbine blade (1) is provided with: a cooling passage (17) formed between a first blade wall (3) curved in a concave shape with respect to a high-temperature gas flow passage (GP) and a second blade wall (5) curved in a convex shape; a lattice structure (23) formed by stacking multiple ribs disposed on both wall surfaces facing the cooling passage into a lattice shape; a cooling medium discharge port (25) disposed on a downstream-side end of the cooling passage and discharging cooling medium (CL) in the cooling passage to the outside; an exposed wall section (27) which is a section of the second blade wall (5) extended to the outside of the cooling medium discharge port (25); and a flat surface section (29) which is a portion of the cooling passage from an exit (23a) of the lattice structure to the cooling medium discharge port (25), where the wall surfaces of the first blade wall (3) and the second blade wall (5) are formed as flat surfaces.
Inventors:
TSURU TOMOKO (JP)
ISHIDA KATSUHIKO (JP)
ISHIDA KATSUHIKO (JP)
Application Number:
PCT/JP2017/047091
Publication Date:
July 26, 2018
Filing Date:
December 27, 2017
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F01D5/18; F01D9/02
Foreign References:
JP2014177900A | 2014-09-25 | |||
JP2011085084A | 2011-04-28 | |||
US20100254801A1 | 2010-10-07 | |||
JP4957131B2 | 2012-06-20 | |||
US20160169003A1 | 2016-06-16 | |||
US20070172354A1 | 2007-07-26 | |||
JPH08334003A | 1996-12-17 | |||
JPS59107903U | 1984-07-20 |
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
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