Title:
COOLING STRUCTURE FOR TURBINE BLADE
Document Type and Number:
WIPO Patent Application WO/2018/164150
Kind Code:
A1
Abstract:
This cooling structure for a turbine blade (1) is provided with: a cooling passage (17) formed between a first blade wall (3) that is curved in a concave shape with respect to a high-temperature gas flow passage (GP) and a second blade wall (5) that is curved in a convex shape; lattice structures (23) formed by superposing, in a lattice shape, a plurality of main ribs provided on both wall surfaces facing the cooling passage; partitioning bodies (27) provided between the lattice structures that are adjacent to each other; a coolant discharge port (25) for externally discharging a cooling medium (CL) inside the cooling passage; and an exposed wall part (29) which is a part of the second blade wall (5), the part extending to the outside of the coolant discharge port (25). In outlet parts of the lattice structures (23) adjacent to each other via the partitioning bodies, a pair of adjacent first ribs (33A) and a pair of adjacent second ribs (33B) are respectively inclined in the opposite directions with respect to the partitioning bodies.
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| JP2016200120 | TURBINE ROTOR BLADE AND GAS TURBINE |
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Inventors:
TSURU TOMOKO (JP)
ISHIDA KATSUHIKO (JP)
ISHIDA KATSUHIKO (JP)
Application Number:
PCT/JP2018/008645
Publication Date:
September 13, 2018
Filing Date:
March 06, 2018
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F01D5/18; F01D9/02; F02C7/18
Foreign References:
| JP2008064002A | 2008-03-21 | |||
| JP2014177900A | 2014-09-25 |
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
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