EP1623097A4 - Steam/gas turbine pressure stage with universal shroud - Google Patents

Steam/gas turbine pressure stage with universal shroud

Info

Publication number
EP1623097A4
EP1623097A4 EP03726350A EP03726350A EP1623097A4 EP 1623097 A4 EP1623097 A4 EP 1623097A4 EP 03726350 A EP03726350 A EP 03726350A EP 03726350 A EP03726350 A EP 03726350A EP 1623097 A4 EP1623097 A4 EP 1623097A4
Authority
EP
European Patent Office
Prior art keywords
steam
gas turbine
pressure stage
turbine pressure
shroud
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.)
Withdrawn
Application number
EP03726350A
Other languages
German (de)
French (fr)
Other versions
EP1623097A1 (en
Inventor
Oleg Naljotov
Vladlen Zhitin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1623097A1 publication Critical patent/EP1623097A1/en
Publication of EP1623097A4 publication Critical patent/EP1623097A4/en
Withdrawn legal-status Critical Current

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
    • F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
    • F01D5/143—Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/007—Preventing corrosion
    • 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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • 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
    • F05D2220/31—Application in turbines in steam turbines
    • 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
    • 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
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/602—Drainage
    • 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
    • F05D2260/00—Function
    • F05D2260/95—Preventing corrosion
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
EP03726350A 2003-04-18 2003-04-18 Steam/gas turbine pressure stage with universal shroud Withdrawn EP1623097A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2003/012102 WO2004099572A1 (en) 2003-04-18 2003-04-18 Steam/gas turbine pressure stage with universal shroud

Publications (2)

Publication Number Publication Date
EP1623097A1 EP1623097A1 (en) 2006-02-08
EP1623097A4 true EP1623097A4 (en) 2012-06-27

Family

ID=33434336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03726350A Withdrawn EP1623097A4 (en) 2003-04-18 2003-04-18 Steam/gas turbine pressure stage with universal shroud

Country Status (10)

Country Link
EP (1) EP1623097A4 (en)
JP (1) JP4195882B2 (en)
CN (1) CN100386502C (en)
AU (1) AU2003228590B2 (en)
BR (1) BR0318261A (en)
CA (1) CA2562712C (en)
EA (1) EA008156B1 (en)
HK (1) HK1092853A1 (en)
UA (1) UA81314C2 (en)
WO (1) WO2004099572A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE893649C (en) * 1940-05-04 1953-10-19 Siemens Ag Installation on steam or gas turbine blades
FR2166494A5 (en) * 1971-12-27 1973-08-17 Onera (Off Nat Aerospatiale)
SU663861A1 (en) * 1977-08-23 1979-05-25 Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина Axial turbine runner
JPS55146201A (en) * 1979-05-04 1980-11-14 Hitachi Ltd Moving blade for turbine
US4534701A (en) * 1982-06-29 1985-08-13 Gerhard Wisser Rotor or guide wheel of a turbine engine with shroud ring

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505491A1 (en) * 1985-02-16 1986-08-21 MTU Motoren- und Turbinen-Union München GmbH, 8000 München GASKET FOR A FLUID MACHINE
DE4015206C1 (en) * 1990-05-11 1991-10-17 Mtu Muenchen Gmbh
FR2661944B1 (en) * 1990-05-14 1994-06-10 Alsthom Gec TURBOMACHINE FLOOR WITH REDUCED SECONDARY LOSSES.
FR2666846B1 (en) * 1990-09-13 1992-10-16 Alsthom Gec VANE GRILLE FOR TURBOMACHINE PROVIDED WITH SUCTION SLOTS IN THE CEILING AND / OR IN THE FLOOR AND TURBOMACHINE COMPRISING SUCH GRIDS.
US5224713A (en) * 1991-08-28 1993-07-06 General Electric Company Labyrinth seal with recirculating means for reducing or eliminating parasitic leakage through the seal
GB9607578D0 (en) * 1996-04-12 1996-06-12 Rolls Royce Plc Turbine rotor blades
EP0844369B1 (en) * 1996-11-23 2002-01-30 ROLLS-ROYCE plc A bladed rotor and surround assembly
EP1013884B1 (en) * 1998-12-24 2005-07-27 ALSTOM Technology Ltd Turbine blade with actively cooled head platform

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE893649C (en) * 1940-05-04 1953-10-19 Siemens Ag Installation on steam or gas turbine blades
FR2166494A5 (en) * 1971-12-27 1973-08-17 Onera (Off Nat Aerospatiale)
SU663861A1 (en) * 1977-08-23 1979-05-25 Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина Axial turbine runner
JPS55146201A (en) * 1979-05-04 1980-11-14 Hitachi Ltd Moving blade for turbine
US4534701A (en) * 1982-06-29 1985-08-13 Gerhard Wisser Rotor or guide wheel of a turbine engine with shroud ring

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2004099572A1 *

Also Published As

Publication number Publication date
EP1623097A1 (en) 2006-02-08
EA200501572A1 (en) 2006-08-25
EA008156B1 (en) 2007-04-27
JP2006523792A (en) 2006-10-19
AU2003228590A1 (en) 2004-11-26
JP4195882B2 (en) 2008-12-17
CA2562712C (en) 2011-05-31
CA2562712A1 (en) 2004-11-18
AU2003228590B2 (en) 2010-01-07
UA81314C2 (en) 2007-12-25
CN100386502C (en) 2008-05-07
HK1092853A1 (en) 2007-02-16
CN1788142A (en) 2006-06-14
BR0318261A (en) 2006-05-23
WO2004099572A1 (en) 2004-11-18

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Legal Events

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A4 Supplementary search report drawn up and despatched

Effective date: 20120524

RIC1 Information provided on ipc code assigned before grant

Ipc: F01D 11/08 20060101ALI20120518BHEP

Ipc: F01D 5/18 20060101AFI20120518BHEP

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Effective date: 20120823