JPS57153903A - Cooling structure for turbing blade - Google Patents

Cooling structure for turbing blade

Info

Publication number
JPS57153903A
JPS57153903A JP3937081A JP3937081A JPS57153903A JP S57153903 A JPS57153903 A JP S57153903A JP 3937081 A JP3937081 A JP 3937081A JP 3937081 A JP3937081 A JP 3937081A JP S57153903 A JPS57153903 A JP S57153903A
Authority
JP
Japan
Prior art keywords
blade
passages
convection
passage
turbine blade
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
JP3937081A
Other languages
Japanese (ja)
Inventor
Mitsutaka Shizutani
Michio Kuroda
Shigeyoshi Kobayashi
Manabu Matsumoto
Narihisa Sugita
Shigeyuki Akatsu
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 JP3937081A priority Critical patent/JPS57153903A/en
Publication of JPS57153903A publication Critical patent/JPS57153903A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/187—Convection cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE:To provide good cooling structure for the whole surface of a turbine blade of return flow type, by making the upstream part of the cooling passage of the blade of convection passages and making the downstream part of blowoff passages and a central passage connected to the convection passage. CONSTITUTION:The upstream part of the cooling passage of a turbine blade 1 is made of plural convection passages 2 located near the surface of the blade and extending in parallel with each other in the direction of the height of the blade. The convection passages 2 are connected to each other through communication passages 6 at the tip or butt of the blade 1 so that the flow of a fluid through the convection passage is turned in the communication passage. The last convection passage 2 is provided with a communication port 7 connected to a central passage 3 which extends in the direction of the height of the turbine blade 2 inside the convection passages 2 and has a relatively large cross-sectional area. An appropriate number of the convection passages 2 are connected to the central passage 3. Blowoff passages 4 are provided beside the central passage 3 so that the blowoff passages extend through the wall of the turbine blade 2 and communicate with the outside of the blade. According to this constitution, good cooling performance is attained for the whole surface of the blade 2.
JP3937081A 1981-03-20 1981-03-20 Cooling structure for turbing blade Pending JPS57153903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3937081A JPS57153903A (en) 1981-03-20 1981-03-20 Cooling structure for turbing blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3937081A JPS57153903A (en) 1981-03-20 1981-03-20 Cooling structure for turbing blade

Publications (1)

Publication Number Publication Date
JPS57153903A true JPS57153903A (en) 1982-09-22

Family

ID=12551162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3937081A Pending JPS57153903A (en) 1981-03-20 1981-03-20 Cooling structure for turbing blade

Country Status (1)

Country Link
JP (1) JPS57153903A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2678318A1 (en) * 1991-06-25 1992-12-31 Snecma COOLED VANE OF TURBINE DISTRIBUTOR.
US5484258A (en) * 1994-03-01 1996-01-16 General Electric Company Turbine airfoil with convectively cooled double shell outer wall
US6705836B2 (en) * 2001-08-28 2004-03-16 Snecma Moteurs Gas turbine blade cooling circuits
JP2015507129A (en) * 2012-02-14 2015-03-05 シーメンス アクティエンゲゼルシャフト Turbine guide vane with throttle element
JP2017115881A (en) * 2015-12-21 2017-06-29 ゼネラル・エレクトリック・カンパニイ Platform core feed for multi-wall blade

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2678318A1 (en) * 1991-06-25 1992-12-31 Snecma COOLED VANE OF TURBINE DISTRIBUTOR.
US5484258A (en) * 1994-03-01 1996-01-16 General Electric Company Turbine airfoil with convectively cooled double shell outer wall
US6705836B2 (en) * 2001-08-28 2004-03-16 Snecma Moteurs Gas turbine blade cooling circuits
JP2015507129A (en) * 2012-02-14 2015-03-05 シーメンス アクティエンゲゼルシャフト Turbine guide vane with throttle element
US9856738B2 (en) 2012-02-14 2018-01-02 Siemens Aktiengesellschaft Turbine guide vane with a throttle element
JP2017115881A (en) * 2015-12-21 2017-06-29 ゼネラル・エレクトリック・カンパニイ Platform core feed for multi-wall blade

Similar Documents

Publication Publication Date Title
PL335864A1 (en) Flow passage or turbine vane surface structure
GB1075030A (en) A vane or blade of stacked wafer const ruction for a turbine or like fluid flow machine
GB2267737A (en) Cooling turbo-machine stator vanes
DE3271339D1 (en) Directing vanes for diverging channels in steam turbines
GB2127105A (en) Improvements in cooled gas turbine engine aerofoils
BR8403744A (en) PASSAGE CURRENT TURBINE
JPS57153903A (en) Cooling structure for turbing blade
JPS52149666A (en) Cyclone classifier
JPS5382933A (en) Variable venturi type carburetor
JPS6412007A (en) Variable displacement type nozzleless radial turbine
JPS5733743A (en) Method of converting air blow-off direction
JPS5469811A (en) Diffuser for centrifugal compressor
JPS5349607A (en) Axial flow turbine
JPS57171003A (en) Steam turbine
SU987195A1 (en) Axial fan vane
EP0093483A3 (en) Centrifugal pump
JPS5640041A (en) Air diffusing port capable of changing its direction by self-oscillation
SU1606743A1 (en) Method of and diffuser for converting fluid stream energy
JPS5313005A (en) Turbine stage internal structure
JPS59173567A (en) Tandem system cross flow water wheel
JPS5439786A (en) Fuel assembly
JPS57129206A (en) Steam turbine
JPS5316105A (en) Inner construction at shoulder in fluid machine
JPS5765803A (en) Shroud ring
JPS5751961A (en) Running vane of hydraulic machinery