WO2010000229A3 - Blade cascade for a flow engine and flow engine comprising said blade cascade - Google Patents

Blade cascade for a flow engine and flow engine comprising said blade cascade Download PDF

Info

Publication number
WO2010000229A3
WO2010000229A3 PCT/DE2009/000876 DE2009000876W WO2010000229A3 WO 2010000229 A3 WO2010000229 A3 WO 2010000229A3 DE 2009000876 W DE2009000876 W DE 2009000876W WO 2010000229 A3 WO2010000229 A3 WO 2010000229A3
Authority
WO
WIPO (PCT)
Prior art keywords
flow engine
blade cascade
blade
chord length
cascade
Prior art date
Application number
PCT/DE2009/000876
Other languages
German (de)
French (fr)
Other versions
WO2010000229A2 (en
Inventor
Günter Neumann
Jörg GATZKE
Ulrich Harbecke
Marc Andre Schwarz
Original Assignee
Man Diesel & Turbo Se
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41256100&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2010000229(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Man Diesel & Turbo Se filed Critical Man Diesel & Turbo Se
Priority to EP09771999A priority Critical patent/EP2294285A2/en
Priority to JP2011513872A priority patent/JP5478617B2/en
Priority to CN200980126997.2A priority patent/CN102084089B/en
Publication of WO2010000229A2 publication Critical patent/WO2010000229A2/en
Publication of WO2010000229A3 publication Critical patent/WO2010000229A3/en

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
    • F01D5/141—Shape, i.e. outer, aerodynamic form

Abstract

The invention relates to an improved blade cascade for a flow engine, especially a steam turbine, comprising a plurality of profiled blades, especially profiled rotor blades (1), having an intake side (SS), a pressure side (DS), a median line (Sk) and a chord length (s) between a blade leading edge and a blade trailing edge, said chord length having different geometrical quotients according to the claims.
PCT/DE2009/000876 2008-07-04 2009-06-24 Blade cascade for a flow engine and flow engine comprising said blade cascade WO2010000229A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09771999A EP2294285A2 (en) 2008-07-04 2009-06-24 Blade cascade for a flow engine and flow engine comprising said blade cascade
JP2011513872A JP5478617B2 (en) 2008-07-04 2009-06-24 Cascade for fluid engine and fluid engine having such cascade
CN200980126997.2A CN102084089B (en) 2008-07-04 2009-06-24 Blade cascade for a flow engine and flow engine comprising said blade cascade

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008031781.0 2008-07-04
DE102008031781.0A DE102008031781B4 (en) 2008-07-04 2008-07-04 Blade grille for a turbomachine and turbomachine with such a blade grille

Publications (2)

Publication Number Publication Date
WO2010000229A2 WO2010000229A2 (en) 2010-01-07
WO2010000229A3 true WO2010000229A3 (en) 2010-08-19

Family

ID=41256100

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2009/000876 WO2010000229A2 (en) 2008-07-04 2009-06-24 Blade cascade for a flow engine and flow engine comprising said blade cascade

Country Status (5)

Country Link
EP (1) EP2294285A2 (en)
JP (1) JP5478617B2 (en)
CN (1) CN102084089B (en)
DE (1) DE102008031781B4 (en)
WO (1) WO2010000229A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2796526T3 (en) 2010-11-30 2020-11-27 Mtu Aero Engines Gmbh Vane system for an aircraft engine
CN110727995B (en) * 2018-06-29 2023-09-22 中国航发商用航空发动机有限责任公司 Blade shape construction method, blade, and computer device
CN113342314B (en) * 2021-05-28 2023-08-18 西安交通大学 Supercritical carbon dioxide working medium axial flow turbine design system and method

Citations (10)

* Cited by examiner, † Cited by third party
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GB2085976A (en) * 1980-10-27 1982-05-06 United Technologies Corp An airfoil shape particularly for arrays of transonic airfoils
EP0112003A1 (en) * 1982-10-22 1984-06-27 Westinghouse Electric Corporation Rotor blade form for the first stage of a combustion turbine
US5352092A (en) * 1993-11-24 1994-10-04 Westinghouse Electric Corporation Light weight steam turbine blade
DE10039642A1 (en) * 2000-08-14 2002-03-07 Honda Motor Co Ltd Turbine blade air wing for axial flow turbine, has bent surface portion provided to outside arc at wing section corresponding to flat surface portion provided to air wing inside arc
EP1225303A2 (en) * 2001-01-12 2002-07-24 Mitsubishi Heavy Industries, Ltd. Blade structure in a gas turbine
EP1260674A1 (en) * 2001-05-18 2002-11-27 Hitachi, Ltd. Turbine blade and turbine
EP1300547A2 (en) * 2001-10-05 2003-04-09 General Electric Company Transonic turbine airfoil arrangement
DE102004009696B3 (en) * 2004-02-27 2005-08-18 Honda Motor Co., Ltd. Turbine blade profile for an axial turbine comprises an inner curve formed between a front edge and a rear edge, and an outer curve producing a negative pressure
EP1742160A1 (en) * 2005-07-08 2007-01-10 Ansaldo Energia S.P.A. Method for optimization of blade profiles
WO2007010329A1 (en) * 2005-07-15 2007-01-25 Vestas Wind Systems A/S Wind turbine blade

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US2258795A (en) * 1941-06-14 1941-10-14 Westinghouse Electric & Mfg Co Elastic-fluid turbine
JPS5614802A (en) * 1979-07-18 1981-02-13 Hitachi Ltd Profile of accelerating blade
DE3029082C2 (en) 1980-07-31 1982-10-21 Kraftwerk Union AG, 4330 Mülheim Turbomachine Blade
DE3325663C2 (en) * 1983-07-15 1985-08-22 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Axial flow through a blade grille of a gas or steam powered turbine
JPH0441256Y2 (en) * 1985-01-31 1992-09-28
JPH0610401B2 (en) * 1985-04-08 1994-02-09 川崎重工業株式会社 Turbin cascade
JPH0454203A (en) * 1990-06-22 1992-02-21 Toshiba Corp Turbine rotor blade and turbine cascade
US5286168A (en) * 1992-01-31 1994-02-15 Westinghouse Electric Corp. Freestanding mixed tuned blade
JP3867812B2 (en) * 1995-07-17 2007-01-17 石川島播磨重工業株式会社 Axial compressor blade
JP3402176B2 (en) * 1998-01-19 2003-04-28 株式会社日立製作所 Blades for turbomachinery
JP2000045704A (en) * 1998-07-31 2000-02-15 Toshiba Corp Steam turbine
JP4086415B2 (en) * 1999-06-03 2008-05-14 株式会社荏原製作所 Turbine equipment
JP3785013B2 (en) * 2000-01-12 2006-06-14 三菱重工業株式会社 Turbine blade
JP2002213202A (en) * 2001-01-12 2002-07-31 Mitsubishi Heavy Ind Ltd Gas turbine blade
US6979178B2 (en) 2001-06-18 2005-12-27 Bharat Heavy Electricals Ltd. Cylindrical blades for axial steam turbines
JP4118779B2 (en) * 2003-10-08 2008-07-16 株式会社日立製作所 Axial flow turbine
US7686567B2 (en) * 2005-12-16 2010-03-30 United Technologies Corporation Airfoil embodying mixed loading conventions
GB2440344A (en) * 2006-07-26 2008-01-30 Christopher Freeman Impulse turbine design

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2085976A (en) * 1980-10-27 1982-05-06 United Technologies Corp An airfoil shape particularly for arrays of transonic airfoils
EP0112003A1 (en) * 1982-10-22 1984-06-27 Westinghouse Electric Corporation Rotor blade form for the first stage of a combustion turbine
US5352092A (en) * 1993-11-24 1994-10-04 Westinghouse Electric Corporation Light weight steam turbine blade
DE10039642A1 (en) * 2000-08-14 2002-03-07 Honda Motor Co Ltd Turbine blade air wing for axial flow turbine, has bent surface portion provided to outside arc at wing section corresponding to flat surface portion provided to air wing inside arc
EP1225303A2 (en) * 2001-01-12 2002-07-24 Mitsubishi Heavy Industries, Ltd. Blade structure in a gas turbine
EP1260674A1 (en) * 2001-05-18 2002-11-27 Hitachi, Ltd. Turbine blade and turbine
EP1300547A2 (en) * 2001-10-05 2003-04-09 General Electric Company Transonic turbine airfoil arrangement
DE102004009696B3 (en) * 2004-02-27 2005-08-18 Honda Motor Co., Ltd. Turbine blade profile for an axial turbine comprises an inner curve formed between a front edge and a rear edge, and an outer curve producing a negative pressure
EP1742160A1 (en) * 2005-07-08 2007-01-10 Ansaldo Energia S.P.A. Method for optimization of blade profiles
WO2007010329A1 (en) * 2005-07-15 2007-01-25 Vestas Wind Systems A/S Wind turbine blade

Also Published As

Publication number Publication date
CN102084089A (en) 2011-06-01
DE102008031781B4 (en) 2020-06-10
DE102008031781A1 (en) 2010-01-07
EP2294285A2 (en) 2011-03-16
CN102084089B (en) 2015-01-14
JP2011524490A (en) 2011-09-01
JP5478617B2 (en) 2014-04-23
WO2010000229A2 (en) 2010-01-07

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