Title:
DOUBLE-JET FILM COOLING STRUCTURE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2014/189092
Kind Code:
A1
Abstract:
Provided is a film cooling structure which prevents a cooling medium film from peeling off a wall surface, efficiently cools the wall surface, and is manufactured easily. The film cooling structure comprises a main passage (3) continuous with a jet opening (2) provided in a wall surface (1) facing a passage for high-temperature gas (G), a pair of branch passages (4, 5) branching off from the main passage (3), and communication passages (6, 7) through which these passages communicate with each other. The jet directions (A, B) of cooling mediums (CL4, CL5) from the pair of branch passages (4, 5) are set to be inclined with respect to the flow direction of the high-temperature gas (G) such that eddy flows (V1, V2) in directions in which the cooling mediums are mutually pressed against the wall surface (1) are formed. Cross sections of the main passage (3) and the branch passages (4, 5) have the same constant inside diameter (D), the communication passages (6, 7) have envelope surfaces (16, 17) each being a continued straight circular hole group having the constant inside diameter (D). A main longitudinal direction angle (α1) formed between the axis (C3) of the main passage and the wall surface (1) is larger than a branch longitudinal direction angle (α2) formed between the axes (C4, C5) of the branch passages (4, 5) and the wall surface (1).
Inventors:
TANAKA RYOZO (JP)
SUGIMOTO TAKAO (JP)
KAZARI MASAHIDE (JP)
TANIGUCHI TOMOKI (JP)
KUSTERER KARSTEN (DE)
BOHN DITER (DE)
TEKIN NURETTIN (DE)
SUGIMOTO TAKAO (JP)
KAZARI MASAHIDE (JP)
TANIGUCHI TOMOKI (JP)
KUSTERER KARSTEN (DE)
BOHN DITER (DE)
TEKIN NURETTIN (DE)
Application Number:
PCT/JP2014/063517
Publication Date:
November 27, 2014
Filing Date:
May 21, 2014
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
B & B AGEMA GMBH (DE)
B & B AGEMA GMBH (DE)
International Classes:
F01D5/18; B23H9/10; F01D9/02; F02C7/00; F02C7/18
Foreign References:
| JP2011247248A | 2011-12-08 | |||
| JP2001012204A | 2001-01-16 | |||
| US20110123312A1 | 2011-05-26 | |||
| JP2006009785A | 2006-01-12 | |||
| JP2008008288A | 2008-01-17 | |||
| JP4954309B2 | 2012-06-13 | |||
| JP2008008288A | 2008-01-17 | |||
| JP4954309B2 | 2012-06-13 |
Other References:
See also references of EP 3000971A4
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)
Shuji Sugimoto (JP)
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