JPS572403A - Turbine moving blade - Google Patents

Turbine moving blade

Info

Publication number
JPS572403A
JPS572403A JP7562480A JP7562480A JPS572403A JP S572403 A JPS572403 A JP S572403A JP 7562480 A JP7562480 A JP 7562480A JP 7562480 A JP7562480 A JP 7562480A JP S572403 A JPS572403 A JP S572403A
Authority
JP
Japan
Prior art keywords
base
blades
curved surface
passage
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
JP7562480A
Other languages
Japanese (ja)
Inventor
Takeshi Sato
Yoshiaki Arima
Norio Yasugadaira
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 JP7562480A priority Critical patent/JPS572403A/en
Publication of JPS572403A publication Critical patent/JPS572403A/en
Pending legal-status Critical Current

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE: To reduce a secondary flow loss by forming the surface of a base of each rotary blade in a curved surface following the shape of passage between blades as well as inserting a partition, with a curved surface of the same shape as that of said surface, between facing surfaces of adjacent bases.
CONSTITUTION: The surface of a base 17 of each rotary blade is formed in a curved surface along a curved passage between blades. A partition 18 has a curved surface of the same shape as the base 17 of the rotary blade and its blade spanwise length is longer than that of said base 17. Rotary blades and partitions 18 are alternately fitted in treelike convex grooves 19a made along the outer circumference of a wheel disc 19 in such a manner as to stick fast to each other. Instead of the partitions 18, projecting plates may be provided blade spanwise from the bottom of the passage. Through these arrangements, any flow around side walls of rotary blades approaches a laminar flow to reduce a harmful secondary flow.
COPYRIGHT: (C)1982,JPO&Japio
JP7562480A 1980-06-06 1980-06-06 Turbine moving blade Pending JPS572403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7562480A JPS572403A (en) 1980-06-06 1980-06-06 Turbine moving blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7562480A JPS572403A (en) 1980-06-06 1980-06-06 Turbine moving blade

Publications (1)

Publication Number Publication Date
JPS572403A true JPS572403A (en) 1982-01-07

Family

ID=13581555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7562480A Pending JPS572403A (en) 1980-06-06 1980-06-06 Turbine moving blade

Country Status (1)

Country Link
JP (1) JPS572403A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5267834A (en) * 1992-12-30 1993-12-07 General Electric Company Bucket for the last stage of a steam turbine
JP2005194914A (en) * 2004-01-05 2005-07-21 Ishikawajima Harima Heavy Ind Co Ltd Sealing structure and turbine nozzle
JP2009209745A (en) * 2008-03-03 2009-09-17 Mitsubishi Heavy Ind Ltd Turbine stage of axial flow type turbo machine, and gas turbine
JP2014163367A (en) * 2013-02-28 2014-09-08 Hitachi Ltd Rotor blade row of axial-flow turbine, and axial-flow turbine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5267834A (en) * 1992-12-30 1993-12-07 General Electric Company Bucket for the last stage of a steam turbine
JP2005194914A (en) * 2004-01-05 2005-07-21 Ishikawajima Harima Heavy Ind Co Ltd Sealing structure and turbine nozzle
JP2009209745A (en) * 2008-03-03 2009-09-17 Mitsubishi Heavy Ind Ltd Turbine stage of axial flow type turbo machine, and gas turbine
JP2014163367A (en) * 2013-02-28 2014-09-08 Hitachi Ltd Rotor blade row of axial-flow turbine, and axial-flow turbine

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