JPS5445405A - Turbine cascade - Google Patents

Turbine cascade

Info

Publication number
JPS5445405A
JPS5445405A JP11056277A JP11056277A JPS5445405A JP S5445405 A JPS5445405 A JP S5445405A JP 11056277 A JP11056277 A JP 11056277A JP 11056277 A JP11056277 A JP 11056277A JP S5445405 A JPS5445405 A JP S5445405A
Authority
JP
Japan
Prior art keywords
blade
front edge
lateral bulkheads
accompanied
pressure difference
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
JP11056277A
Other languages
Japanese (ja)
Inventor
Tetsuo Sasada
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 JP11056277A priority Critical patent/JPS5445405A/en
Publication of JPS5445405A publication Critical patent/JPS5445405A/en
Pending legal-status Critical Current

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE: To improve cascade performance as well as to reduce secondary flow loss which is engendered near to the lateral bulkheads in such a way that accompanied by drawing near to respective lateral bulkheads from the central part of the blade length, the blade front edge can be protruded toward the upstream side within a settled extent.
CONSTITUTION: A blade divided into limited length by upper and lower lateral bulkheads 12a, 12b is constituted in such a way that accompanied by drawing near to respective lateral bulkheads 12a, 12b from the central part of the blade length direction, a blade front edge 11c can gradually protrude toward the upstream side without expanding the blade width. Said constitution facilitates that pressure difference in the blade direction of the blade rear side changes the ratic α1/h1, α2/h2 of front edge protruding extent r1, r2 to front edge protruding distance α1, α2, and can yield optional pressure difference ΔPs1, ΔPs2. This facilitates to display preventive effects in commensuration to the size of the secondary flow
COPYRIGHT: (C)1979,JPO&Japio
JP11056277A 1977-09-16 1977-09-16 Turbine cascade Pending JPS5445405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11056277A JPS5445405A (en) 1977-09-16 1977-09-16 Turbine cascade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11056277A JPS5445405A (en) 1977-09-16 1977-09-16 Turbine cascade

Publications (1)

Publication Number Publication Date
JPS5445405A true JPS5445405A (en) 1979-04-10

Family

ID=14538969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11056277A Pending JPS5445405A (en) 1977-09-16 1977-09-16 Turbine cascade

Country Status (1)

Country Link
JP (1) JPS5445405A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470755A (en) * 1981-05-05 1984-09-11 Alsthom-Atlantique Guide blade set for diverging jet streams in a steam turbine
JPS6166801A (en) * 1984-09-07 1986-04-05 ロ−ルス・ロイス・ピ−エルシ− Blade for turbine engine
JPS6244719A (en) * 1985-08-23 1987-02-26 Alps Electric Co Ltd Electrochromic display element
US5088892A (en) * 1990-02-07 1992-02-18 United Technologies Corporation Bowed airfoil for the compression section of a rotary machine
US6036438A (en) * 1996-12-05 2000-03-14 Kabushiki Kaisha Toshiba Turbine nozzle
US6109869A (en) * 1998-08-13 2000-08-29 General Electric Co. Steam turbine nozzle trailing edge modification for improved stage performance

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470755A (en) * 1981-05-05 1984-09-11 Alsthom-Atlantique Guide blade set for diverging jet streams in a steam turbine
JPS6166801A (en) * 1984-09-07 1986-04-05 ロ−ルス・ロイス・ピ−エルシ− Blade for turbine engine
FR2574114A1 (en) * 1984-09-07 1986-06-06 Rolls Royce IMPROVEMENTS RELATING TO FIND PROFILE COMPONENTS FOR TURBINE ENGINES
JPS6244719A (en) * 1985-08-23 1987-02-26 Alps Electric Co Ltd Electrochromic display element
JPH0477889B2 (en) * 1985-08-23 1992-12-09 Alps Electric Co Ltd
US5088892A (en) * 1990-02-07 1992-02-18 United Technologies Corporation Bowed airfoil for the compression section of a rotary machine
US6036438A (en) * 1996-12-05 2000-03-14 Kabushiki Kaisha Toshiba Turbine nozzle
US6109869A (en) * 1998-08-13 2000-08-29 General Electric Co. Steam turbine nozzle trailing edge modification for improved stage performance

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