JPS5726210A - Turbine rotary blade dovetail - Google Patents

Turbine rotary blade dovetail

Info

Publication number
JPS5726210A
JPS5726210A JP10118180A JP10118180A JPS5726210A JP S5726210 A JPS5726210 A JP S5726210A JP 10118180 A JP10118180 A JP 10118180A JP 10118180 A JP10118180 A JP 10118180A JP S5726210 A JPS5726210 A JP S5726210A
Authority
JP
Japan
Prior art keywords
rotary blade
dovetail
stoppers
rotary
alternatively
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.)
Granted
Application number
JP10118180A
Other languages
Japanese (ja)
Other versions
JPS5925089B2 (en
Inventor
Yoshimi Sato
Shinji Sakata
Tasuku Shimizu
Kazuo Ikeuchi
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 JP10118180A priority Critical patent/JPS5925089B2/en
Publication of JPS5726210A publication Critical patent/JPS5726210A/en
Publication of JPS5925089B2 publication Critical patent/JPS5925089B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE: To improve strength of a rotary blade against any centrifugal force and thrust in case of a rotary blade dovetail of an axial entry type turbine, by disposing the stoppers on the bottom of said dovetail alternatively on the extrance side and exit side between the adjacent rotary blades.
CONSTITUTION: A turbine rotary blade built up by combining a rotary blade 1 with wheel 3 via a rotary blade dovetail 2 of π shaped section, is provided with a rotary blade stopper 6 on the bottom of rotary blade dovetail 2 and insert strips 7a, 7b on both sides of the rotary blade in order to stand the thrust caused by a differential pressure between the inlet and outlet of the rotary blade 1. Then, wheel stoppers 8 supporting the rotary blade stoppers 6 are alternatively disposed on the entrance side and exit side respectively between the adjacent rotary blades 1, while on the hand, the rotary blade stoppers 6 are also disposed on the bottom of rotary dovetail 2 alternatively on the entrance side and exit side so that they may fit in those wheel stoppers 8. Thus, the expected purpose can be achieved.
COPYRIGHT: (C)1982,JPO&Japio
JP10118180A 1980-07-25 1980-07-25 Turbine moving blade dovetail Expired JPS5925089B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10118180A JPS5925089B2 (en) 1980-07-25 1980-07-25 Turbine moving blade dovetail

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10118180A JPS5925089B2 (en) 1980-07-25 1980-07-25 Turbine moving blade dovetail

Publications (2)

Publication Number Publication Date
JPS5726210A true JPS5726210A (en) 1982-02-12
JPS5925089B2 JPS5925089B2 (en) 1984-06-14

Family

ID=14293814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10118180A Expired JPS5925089B2 (en) 1980-07-25 1980-07-25 Turbine moving blade dovetail

Country Status (1)

Country Link
JP (1) JPS5925089B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4714410A (en) * 1986-08-18 1987-12-22 Westinghouse Electric Corp. Trailing edge support for control stage steam turbine blade
US4767274A (en) * 1986-12-29 1988-08-30 United Technologies Corporation Multiple lug blade to disk attachment
US4813850A (en) * 1988-04-06 1989-03-21 Westinghouse Electric Corp. Integral side entry control stage blade group
US5001830A (en) * 1989-10-23 1991-03-26 Westinghouse Electric Corp. Method for assembling side entry control stage blades in a steam turbine
US5112193A (en) * 1990-09-11 1992-05-12 Pratt & Whitney Canada Fan blade axial retention device
US7906175B2 (en) 2007-02-21 2011-03-15 Air Liquide Electronics U.S. Lp Methods for forming a ruthenium-based film on a substrate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4714410A (en) * 1986-08-18 1987-12-22 Westinghouse Electric Corp. Trailing edge support for control stage steam turbine blade
US4767274A (en) * 1986-12-29 1988-08-30 United Technologies Corporation Multiple lug blade to disk attachment
US4813850A (en) * 1988-04-06 1989-03-21 Westinghouse Electric Corp. Integral side entry control stage blade group
US5001830A (en) * 1989-10-23 1991-03-26 Westinghouse Electric Corp. Method for assembling side entry control stage blades in a steam turbine
US5112193A (en) * 1990-09-11 1992-05-12 Pratt & Whitney Canada Fan blade axial retention device
US7906175B2 (en) 2007-02-21 2011-03-15 Air Liquide Electronics U.S. Lp Methods for forming a ruthenium-based film on a substrate

Also Published As

Publication number Publication date
JPS5925089B2 (en) 1984-06-14

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