JPS5726206A - Film cooling type turbine blade - Google Patents

Film cooling type turbine blade

Info

Publication number
JPS5726206A
JPS5726206A JP10116880A JP10116880A JPS5726206A JP S5726206 A JPS5726206 A JP S5726206A JP 10116880 A JP10116880 A JP 10116880A JP 10116880 A JP10116880 A JP 10116880A JP S5726206 A JPS5726206 A JP S5726206A
Authority
JP
Japan
Prior art keywords
blade
cooling
air
air ejection
ejection holes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10116880A
Other languages
Japanese (ja)
Inventor
Takashi Ikeguchi
Masami Noda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10116880A priority Critical patent/JPS5726206A/en
Publication of JPS5726206A publication Critical patent/JPS5726206A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To achieve effective result of cooling by forming an uniform and stable cooling air film on the surface of a blade in such a way as to deform the axis of air blowing holes to be provided on the blade panel in a curved line bending toward the trailing edge of the blade with the prescribed curvature, so far as at least one part of the area between the entrance and exit concerns.
CONSTITUTION: A film cooling type turbine rotary blade is to be cooled by covering the blade surface 1 with thin cooling air flow films 4A blown out of air ejection holes 3. Then, the air ejection holes 3 provided on the blade panel 2 are formed in curved lines from their entrances 3A to exits 3B with the prescribed curvature toward the trailing edge of the blade. And the angle θ measured from the axial line at exit 3B of air ejection hole 3 to be tangent of the blade surface 2, namely to the flow line of main gas 6 along the blade surface 2, shall be set less than 30°, for instance, 20°. The cooling air flow films 4A blown out of air ejection holes 3 can be thus prevented from separation, obtaining the effective result of cooling a turbine rotary brade.
COPYRIGHT: (C)1982,JPO&Japio
JP10116880A 1980-07-25 1980-07-25 Film cooling type turbine blade Pending JPS5726206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10116880A JPS5726206A (en) 1980-07-25 1980-07-25 Film cooling type turbine blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10116880A JPS5726206A (en) 1980-07-25 1980-07-25 Film cooling type turbine blade

Publications (1)

Publication Number Publication Date
JPS5726206A true JPS5726206A (en) 1982-02-12

Family

ID=14293489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10116880A Pending JPS5726206A (en) 1980-07-25 1980-07-25 Film cooling type turbine blade

Country Status (1)

Country Link
JP (1) JPS5726206A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929213U (en) * 1982-08-20 1984-02-23 株式会社プラコ− Downward inflation molding machine
US4473527A (en) * 1981-11-09 1984-09-25 Mitsui Petrochemical Industries Ltd. Method and apparatus for forming inflation film
US5486093A (en) * 1993-09-08 1996-01-23 United Technologies Corporation Leading edge cooling of turbine airfoils
JP2006307842A (en) * 2005-03-30 2006-11-09 Mitsubishi Heavy Ind Ltd High temperature member for gas turbine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473527A (en) * 1981-11-09 1984-09-25 Mitsui Petrochemical Industries Ltd. Method and apparatus for forming inflation film
JPS5929213U (en) * 1982-08-20 1984-02-23 株式会社プラコ− Downward inflation molding machine
US5486093A (en) * 1993-09-08 1996-01-23 United Technologies Corporation Leading edge cooling of turbine airfoils
JP2006307842A (en) * 2005-03-30 2006-11-09 Mitsubishi Heavy Ind Ltd High temperature member for gas turbine

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