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NO20051750L - Rotor med hoy virkningsgrad for den forste fase i en gassturbin - Google Patents

Rotor med hoy virkningsgrad for den forste fase i en gassturbin

Info

Publication number
NO20051750L
NO20051750L NO20051750A NO20051750A NO20051750L NO 20051750 L NO20051750 L NO 20051750L NO 20051750 A NO20051750 A NO 20051750A NO 20051750 A NO20051750 A NO 20051750A NO 20051750 L NO20051750 L NO 20051750L
Authority
NO
Norway
Prior art keywords
blade
average neck
rotor
axis
phase
Prior art date
Application number
NO20051750A
Other languages
English (en)
Other versions
NO20051750D0 (no
Inventor
Federico Noera
Original Assignee
Nuovo Pignone Spa
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 Nuovo Pignone Spa filed Critical Nuovo Pignone Spa
Publication of NO20051750D0 publication Critical patent/NO20051750D0/no
Publication of NO20051750L publication Critical patent/NO20051750L/no

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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/321—Application in turbines in gas turbines for a special turbine stage
    • F05D2220/3212—Application in turbines in gas turbines for a special turbine stage the first stage of a turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/90—Coating; Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • F05D2250/74—Shape given by a set or table of xyz-coordinates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/02—Formulas of curves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

En rotor for det første trinn i en lavtrykksturbin som har en serie av blader (1) som hvert er definert av koordinater for en diskret konibinasjon av punkter, i et kartesisk referansesystem (X, Y, Z), hvor aksen (Z) er en radial akse som krysser den sentrale akse av turbinen. Profilen av hvert blad (1) er identifisert ved hjelp av en serie av lukkede kryssende kurver (20) mellom selve profilen og planene (X, Y) som ligger med avstander (Z) fra den sentrale akse. Hvert blad (1) har en gjennomsnittlig halsvinkel definert av kosinusbuen av forholdet mellom den gjennomsnittlige halslengde ved den midtre høyde av bladet og omkretshelningen evaluert ved radiusen for det gjennomsnittlige halspunkt, kjennetegnet ved at den gjennomsnittlige halsvinkel er fra 54,9° til 57,9°.
NO20051750A 2004-04-09 2005-04-08 Rotor med hoy virkningsgrad for den forste fase i en gassturbin NO20051750L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000714A ITMI20040714A1 (it) 2004-04-09 2004-04-09 Rotore ad elevata efficenza per primo stadio di una turbina a gas

Publications (2)

Publication Number Publication Date
NO20051750D0 NO20051750D0 (no) 2005-04-08
NO20051750L true NO20051750L (no) 2005-10-10

Family

ID=34897802

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20051750A NO20051750L (no) 2004-04-09 2005-04-08 Rotor med hoy virkningsgrad for den forste fase i en gassturbin

Country Status (8)

Country Link
US (1) US7387495B2 (no)
EP (1) EP1584787A3 (no)
JP (1) JP2005299655A (no)
KR (1) KR101370095B1 (no)
CN (1) CN100478545C (no)
CA (1) CA2502796C (no)
IT (1) ITMI20040714A1 (no)
NO (1) NO20051750L (no)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8672635B2 (en) 2010-07-26 2014-03-18 Snecma Optimized aerodynamic profile for a turbine blade, in particular for a rotary wheel of the first stage of a turbine
US9157326B2 (en) 2012-07-02 2015-10-13 United Technologies Corporation Airfoil for improved flow distribution with high radial offset
CN103510998B (zh) * 2013-09-26 2015-04-22 哈尔滨汽轮机厂有限责任公司 一种适用于20-30mw等级的燃机涡轮第一级动叶片
US9957805B2 (en) * 2015-12-18 2018-05-01 General Electric Company Turbomachine and turbine blade therefor
US10443392B2 (en) * 2016-07-13 2019-10-15 Safran Aircraft Engines Optimized aerodynamic profile for a turbine vane, in particular for a nozzle of the second stage of a turbine
US10443393B2 (en) * 2016-07-13 2019-10-15 Safran Aircraft Engines Optimized aerodynamic profile for a turbine vane, in particular for a nozzle of the seventh stage of a turbine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475108A (en) 1968-02-14 1969-10-28 Siemens Ag Blade structure for turbines
JPH04269302A (ja) * 1990-12-06 1992-09-25 Westinghouse Electric Corp <We> 蒸気タービンの静翼
US5160242A (en) * 1991-05-31 1992-11-03 Westinghouse Electric Corp. Freestanding mixed tuned steam turbine blade
US5286168A (en) * 1992-01-31 1994-02-15 Westinghouse Electric Corp. Freestanding mixed tuned blade
US5277549A (en) * 1992-03-16 1994-01-11 Westinghouse Electric Corp. Controlled reaction L-2R steam turbine blade
US5299909A (en) * 1993-03-25 1994-04-05 Praxair Technology, Inc. Radial turbine nozzle vane
US5980209A (en) * 1997-06-27 1999-11-09 General Electric Co. Turbine blade with enhanced cooling and profile optimization

Also Published As

Publication number Publication date
NO20051750D0 (no) 2005-04-08
EP1584787A3 (en) 2012-05-09
CN1773079A (zh) 2006-05-17
ITMI20040714A1 (it) 2004-07-09
CN100478545C (zh) 2009-04-15
JP2005299655A (ja) 2005-10-27
US7387495B2 (en) 2008-06-17
EP1584787A2 (en) 2005-10-12
CA2502796C (en) 2013-05-07
CA2502796A1 (en) 2005-10-09
KR101370095B1 (ko) 2014-03-24
US20050241288A1 (en) 2005-11-03
KR20060046602A (ko) 2006-05-17

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application