JPS56104102A - Cooling construction for extended foot of gas turbine moving blade - Google Patents

Cooling construction for extended foot of gas turbine moving blade

Info

Publication number
JPS56104102A
JPS56104102A JP679480A JP679480A JPS56104102A JP S56104102 A JPS56104102 A JP S56104102A JP 679480 A JP679480 A JP 679480A JP 679480 A JP679480 A JP 679480A JP S56104102 A JPS56104102 A JP S56104102A
Authority
JP
Japan
Prior art keywords
blade
extension
platform
high speed
side cover
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
JP679480A
Other languages
Japanese (ja)
Inventor
Kenjiro Kumamoto
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 JP679480A priority Critical patent/JPS56104102A/en
Publication of JPS56104102A publication Critical patent/JPS56104102A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/80—Platforms for stationary or moving blades
    • F05B2240/801—Platforms for stationary or moving blades cooled platforms

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE: To improve heat conductivity and cooling effect by the action of a flowing fluid by forming flow courses around a part extended from a blade foot a guide a cooling medium at a high speed.
CONSTITUTION: A blade foot extension 11 is formed between a blade 12 and a blade fixing part 13 and a platform 14 is inserted between the blade 12 and the extension 11. A flat flow course is formed between the extension 11 and a side cover 15 spreading over it. The upper end of the side over 15 is secured to the platform 14 and the lower end of it is opened. The flow course formed between the extension 11 and the side cover 15 is communicated with an area on the side of the blade 12 by fine holes 16 opened through the platform 14. A cooling medium runs at a high speed from each radially open inlet formed between the external face of a wheel plate and each side plate 15 into the extension 11 and each side cover 15 at a high speed and is blasted into a main gas flow on the side of the blade 12 from the fine holes 16.
COPYRIGHT: (C)1981,JPO&Japio
JP679480A 1980-01-25 1980-01-25 Cooling construction for extended foot of gas turbine moving blade Pending JPS56104102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP679480A JPS56104102A (en) 1980-01-25 1980-01-25 Cooling construction for extended foot of gas turbine moving blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP679480A JPS56104102A (en) 1980-01-25 1980-01-25 Cooling construction for extended foot of gas turbine moving blade

Publications (1)

Publication Number Publication Date
JPS56104102A true JPS56104102A (en) 1981-08-19

Family

ID=11648073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP679480A Pending JPS56104102A (en) 1980-01-25 1980-01-25 Cooling construction for extended foot of gas turbine moving blade

Country Status (1)

Country Link
JP (1) JPS56104102A (en)

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