GB1364511A - Turbines - Google Patents

Turbines

Info

Publication number
GB1364511A
GB1364511A GB3761371A GB3761371A GB1364511A GB 1364511 A GB1364511 A GB 1364511A GB 3761371 A GB3761371 A GB 3761371A GB 3761371 A GB3761371 A GB 3761371A GB 1364511 A GB1364511 A GB 1364511A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
shoulder
returning
rotor
blade roots
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.)
Expired
Application number
GB3761371A
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.)
Moskovsky Energetichesky Institut
Original Assignee
Moskovsky Energetichesky Institut
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 Moskovsky Energetichesky Institut filed Critical Moskovsky Energetichesky Institut
Priority to GB3761371A priority Critical patent/GB1364511A/en
Priority to CH1182171A priority patent/CH529914A/en
Priority to DE2140720A priority patent/DE2140720A1/en
Priority to FR7129913A priority patent/FR2149619A5/fr
Publication of GB1364511A publication Critical patent/GB1364511A/en
Expired 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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
    • 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
    • F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
    • 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
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • 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
    • F01D5/145—Means for influencing boundary layers or secondary circulations
    • 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)

Abstract

1364511 Turbines MOSKOVSKY ORDENA LENINA ENERGETICHESKY INSTITUT 11 Aug 1971 37613/71 Heading FIT In a single- or multi-stage turbine comprising a nozzle diaphragm 1, Fig. 1, located upstream of rotor wheel 3, the diaphragm has an annular projection 7 which overlaps a frusto-conical surface formed by the rotor blade roots to direct leakage returning to the main flow, in a substantially axial direction. The radially inner surface of the projection 7 may be formed with grooves (10), Fig. 2 (not shown) inclined similarly to the nozzles in diaphragm 1 to give the returning leakage flow a rotational component in the direction of rotor rotation. Partial sealing of the leakage flow-path may be achieved by providing a shoulder (11), Fig. 3a (not shown) extending axially from the blade roots towards the diaphragm. Additionally the shoulder may include a sealing rib or ribs (12), Figs. 3b and c (not shown)on its radially outer surface or on its surface facing the diaphragm.
GB3761371A 1971-08-11 1971-08-11 Turbines Expired GB1364511A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB3761371A GB1364511A (en) 1971-08-11 1971-08-11 Turbines
CH1182171A CH529914A (en) 1971-08-11 1971-08-11 Turbine stage
DE2140720A DE2140720A1 (en) 1971-08-11 1971-08-13 TURBINE LEVEL
FR7129913A FR2149619A5 (en) 1971-08-11 1971-08-17

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB3761371A GB1364511A (en) 1971-08-11 1971-08-11 Turbines
CH1182171A CH529914A (en) 1971-08-11 1971-08-11 Turbine stage
US17158971A 1971-08-13 1971-08-13
DE2140720A DE2140720A1 (en) 1971-08-11 1971-08-13 TURBINE LEVEL
FR7129913A FR2149619A5 (en) 1971-08-11 1971-08-17

Publications (1)

Publication Number Publication Date
GB1364511A true GB1364511A (en) 1974-08-21

Family

ID=27509431

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3761371A Expired GB1364511A (en) 1971-08-11 1971-08-11 Turbines

Country Status (4)

Country Link
CH (1) CH529914A (en)
DE (1) DE2140720A1 (en)
FR (1) FR2149619A5 (en)
GB (1) GB1364511A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2328846A1 (en) * 1975-10-20 1977-05-20 United Technologies Corp METHOD AND DEVICE FOR SEALING THE FLOW CHANNEL OF A TURBOMACHINE
DE3308140A1 (en) * 1983-03-08 1984-09-13 MTU Motoren- und Turbinen-Union München GmbH, 8000 München MULTI-STAGE DECKBAND TURBINE
GB2146707A (en) * 1983-09-14 1985-04-24 Rolls Royce Turbine
US4830575A (en) * 1988-02-08 1989-05-16 Dresser-Rand Company Spiral grooves in a turbine rotor
US4844692A (en) * 1988-08-12 1989-07-04 Avco Corporation Contoured step entry rotor casing
GB2340189A (en) * 1998-08-04 2000-02-16 Siemens Plc A turbomachine shroud seal having baffles
US8645572B2 (en) 2001-02-02 2014-02-04 Opentv, Inc. Service gateway for interactive television
WO2014085464A1 (en) * 2012-11-29 2014-06-05 Siemens Aktiengesellschaft Turbine blade angel wing with pumping features

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661946B1 (en) * 1990-05-14 1994-06-10 Alsthom Gec ACTION TURBINE STAGE WITH REDUCED SECONDARY LOSSES.
FR2675536B1 (en) * 1991-04-19 1994-12-09 Alsthom Gec TURBINE WITH ACTION WITH ROTOR DRUM AND IMPROVEMENT WITH THESE TURBINES.
JPH10259703A (en) * 1997-03-18 1998-09-29 Mitsubishi Heavy Ind Ltd Shroud for gas turbine and platform seal system
EP0894945A3 (en) 1997-07-29 2000-07-12 Siemens Aktiengesellschaft Turbine and turbine blading
EP0894944A1 (en) * 1997-07-29 1999-02-03 Siemens Aktiengesellschaft Turbine blading
EP0972910B1 (en) * 1998-07-14 2003-06-11 ALSTOM (Switzerland) Ltd Non-contact sealing of gaps in gas turbines
EP1167695A1 (en) * 2000-06-21 2002-01-02 Siemens Aktiengesellschaft Gas turbine and gas turbine guide vane
US6779972B2 (en) * 2002-10-31 2004-08-24 General Electric Company Flowpath sealing and streamlining configuration for a turbine
EP2055896A1 (en) * 2007-10-31 2009-05-06 Siemens Aktiengesellschaft Bucket for a turbine of a thermal power plant having a foot section
DE102009040758A1 (en) * 2009-09-10 2011-03-17 Mtu Aero Engines Gmbh Deflection device for a leakage current in a gas turbine and gas turbine

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2328846A1 (en) * 1975-10-20 1977-05-20 United Technologies Corp METHOD AND DEVICE FOR SEALING THE FLOW CHANNEL OF A TURBOMACHINE
DE3308140A1 (en) * 1983-03-08 1984-09-13 MTU Motoren- und Turbinen-Union München GmbH, 8000 München MULTI-STAGE DECKBAND TURBINE
EP0118769A2 (en) * 1983-03-08 1984-09-19 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Shrouded multistage turbine
EP0118769A3 (en) * 1983-03-08 1985-04-24 Mtu Muenchen Gmbh Shrouded multistage turbine
US4571937A (en) * 1983-03-08 1986-02-25 Mtu - Motoren-Und Turbinen-Munchen Gmbh Apparatus for controlling the flow of leakage and cooling air of a rotor of a multi-stage turbine
GB2146707A (en) * 1983-09-14 1985-04-24 Rolls Royce Turbine
US4714406A (en) * 1983-09-14 1987-12-22 Rolls-Royce Plc Turbines
US4830575A (en) * 1988-02-08 1989-05-16 Dresser-Rand Company Spiral grooves in a turbine rotor
US4844692A (en) * 1988-08-12 1989-07-04 Avco Corporation Contoured step entry rotor casing
GB2340189A (en) * 1998-08-04 2000-02-16 Siemens Plc A turbomachine shroud seal having baffles
US8645572B2 (en) 2001-02-02 2014-02-04 Opentv, Inc. Service gateway for interactive television
US9369330B2 (en) 2001-02-02 2016-06-14 Opentv, Inc. Service gateway for interactive television
US10826748B2 (en) 2001-02-02 2020-11-03 Opentv, Inc. Service gateway for interactive television
WO2014085464A1 (en) * 2012-11-29 2014-06-05 Siemens Aktiengesellschaft Turbine blade angel wing with pumping features
CN104903545A (en) * 2012-11-29 2015-09-09 西门子公司 Turbine blade angel wing with pumping features
CN104903545B (en) * 2012-11-29 2016-12-28 西门子公司 There is turbo blade angel's wing of pumping characteristics
RU2628135C2 (en) * 2012-11-29 2017-08-15 Сименс Акциенгезелльшафт Gas turbine engine

Also Published As

Publication number Publication date
FR2149619A5 (en) 1973-03-30
DE2140720A1 (en) 1973-02-15
CH529914A (en) 1972-10-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee