JPS50128008A - - Google Patents

Info

Publication number
JPS50128008A
JPS50128008A JP50033481A JP3348175A JPS50128008A JP S50128008 A JPS50128008 A JP S50128008A JP 50033481 A JP50033481 A JP 50033481A JP 3348175 A JP3348175 A JP 3348175A JP S50128008 A JPS50128008 A JP S50128008A
Authority
JP
Japan
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.)
Granted
Application number
JP50033481A
Other languages
Japanese (ja)
Other versions
JPS5949401B2 (en
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 filed Critical
Publication of JPS50128008A publication Critical patent/JPS50128008A/ja
Priority claimed from US05/957,290 external-priority patent/US4370094A/en
Publication of JPS5949401B2 publication Critical patent/JPS5949401B2/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
    • 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
    • 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
    • F01D11/10—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using sealing fluid, e.g. steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/447—Labyrinth packings
    • F16J15/4472—Labyrinth packings with axial path

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
JP50033481A 1974-03-21 1975-03-19 Method and apparatus for increasing dynamic power limits of turbines and compressors Expired JPS5949401B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE2413655 1974-03-21
DE2413655A DE2413655C3 (en) 1974-03-21 1974-03-21 Device for dynamic stabilization of the rotor of a gas or steam turbine
US56223575A 1975-03-26 1975-03-26
US71624676A 1976-08-20 1976-08-20
US05/957,290 US4370094A (en) 1974-03-21 1978-11-02 Method of and device for avoiding rotor instability to enhance dynamic power limit of turbines and compressors

Publications (2)

Publication Number Publication Date
JPS50128008A true JPS50128008A (en) 1975-10-08
JPS5949401B2 JPS5949401B2 (en) 1984-12-03

Family

ID=27431835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50033481A Expired JPS5949401B2 (en) 1974-03-21 1975-03-19 Method and apparatus for increasing dynamic power limits of turbines and compressors

Country Status (11)

Country Link
JP (1) JPS5949401B2 (en)
AT (1) AT391918B (en)
CH (1) CH589787A5 (en)
CS (1) CS190320B2 (en)
DD (1) DD119847A5 (en)
DE (1) DE2413655C3 (en)
FR (1) FR2264964A1 (en)
GB (1) GB1505534A (en)
IN (1) IN144140B (en)
NL (1) NL176388C (en)
SE (1) SE410488B (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311202A (en) * 1976-07-19 1978-02-01 Hitachi Ltd Steam turbine step-setting structure
JPS53122002A (en) * 1977-03-31 1978-10-25 Hitachi Ltd Seal device
JPS5665796U (en) * 1979-10-21 1981-06-02
JPS58178262A (en) * 1982-04-12 1983-10-19 Mitsubishi Electric Corp Voltage divider
JPS58165201U (en) * 1982-04-30 1983-11-02 三菱重工業株式会社 Turbine blade seal structure
JPS58222902A (en) * 1982-05-10 1983-12-24 ゼネラル・エレクトリツク・カンパニイ Labyrinth seal for stabilizing rotor for steam turbine
JPS601306A (en) * 1983-06-16 1985-01-07 Toshiba Corp Axial flow turbine
JPS6029450A (en) * 1983-07-26 1985-02-14 Kanto Tokushu Seikou Kk Tool steel for cold working
JPS6052306U (en) * 1983-09-05 1985-04-12 三菱重工業株式会社 Labyrinth seal for turbo machinery
JPH11148308A (en) * 1997-09-19 1999-06-02 Asea Brown Boveri Ag Shroud band for axial-flow turbine
JP2011052645A (en) * 2009-09-03 2011-03-17 Mitsubishi Heavy Ind Ltd Turbine
JP2013174192A (en) * 2012-02-27 2013-09-05 Hitachi Ltd Turbo machine
JP2015520318A (en) * 2012-04-27 2015-07-16 ヌオーヴォ ピニォーネ ソチエタ レスポンサビリタ リミタータＮｕｏｖｏ Ｐｉｇｎｏｎｅ Ｓ．Ｒ．Ｌ． Highly damped labyrinth seal with spiral and spiral-cylindrical mixed patterns
JP2018150860A (en) * 2017-03-13 2018-09-27 三菱重工業株式会社 Axial flow turbine
JP2019100204A (en) * 2017-11-29 2019-06-24 三菱重工業株式会社 Turbine and rotor blade
JP2021036136A (en) * 2019-08-30 2021-03-04 三菱パワー株式会社 Rotary machine

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1560974A (en) * 1977-03-26 1980-02-13 Rolls Royce Sealing system for rotors
FR2406074A1 (en) * 1977-10-11 1979-05-11 Snecma SAFETY DEVICE FOR AXIAL ROTATING MACHINE
CH669241A5 (en) * 1985-11-27 1989-02-28 Sulzer Ag AXIAL PUSH COMPENSATING DEVICE FOR LIQUID PUMP.
DE59201833D1 (en) * 1991-10-08 1995-05-11 Asea Brown Boveri Shroud for turbine with axial flow.
FR2687429B1 (en) * 1992-02-17 1994-04-01 Gec Alsthom Sa METHOD AND DEVICE FOR REMOVING THE INSTABILITY OF A STEAM TURBINE.
DE4331779A1 (en) * 1993-09-18 1995-03-23 Abb Management Ag Method and device for reducing the gap-flow mixing losses and gap excitation in rotary thermal machines
US6109618A (en) * 1997-05-07 2000-08-29 Kalsi Engineering, Inc. Rotary seal with enhanced lubrication and contaminant flushing
EP0943849A1 (en) 1998-03-19 1999-09-22 Asea Brown Boveri AG Contactless seal for turbomachines
EP1001139B1 (en) 1998-11-10 2004-01-07 ALSTOM (Switzerland) Ltd Turbine blade tip sealing
EP1001138B1 (en) 1998-11-10 2003-06-11 ALSTOM (Switzerland) Ltd Turbine blade tip sealing
US20090097979A1 (en) * 2007-07-31 2009-04-16 Omer Duane Erdmann Rotor blade
DE102008060706A1 (en) * 2008-12-05 2010-06-10 Man Turbo Ag Nozzle segment for a steam turbine
DE102009042857A1 (en) * 2009-09-24 2011-03-31 Rolls-Royce Deutschland Ltd & Co Kg Gas turbine with shroud labyrinth seal
DE102009052314A1 (en) * 2009-11-07 2011-05-12 Mtu Aero Engines Gmbh Sealing arrangement for a gas turbine and such a gas turbine
JP5147885B2 (en) 2010-03-26 2013-02-20 株式会社日立製作所 Rotor vibration preventing structure and steam turbine using the same
JP5774963B2 (en) * 2011-10-21 2015-09-09 三菱重工業株式会社 Sealing device
CN105074134B (en) * 2013-04-03 2017-06-20 三菱重工业株式会社 Rotating machinery
EP2840229A1 (en) * 2013-08-23 2015-02-25 Siemens Aktiengesellschaft Flow guide within a steam turbine seal
RU2624691C1 (en) * 2016-05-10 2017-07-05 Акционерное общество "Научно-производственный центр газотурбостроения "Салют" (АО "НПЦ газотурбостроения "Салют") Device for cooling sealing flanges of turbine rotor blade platforms
CN112796841B (en) * 2020-12-25 2022-03-15 东方电气集团东方汽轮机有限公司 Structure for reducing steam leakage of gap bridge steam seal
CN112610287A (en) * 2020-12-29 2021-04-06 中国神华能源股份有限公司国华电力分公司 High pressure steam turbine blade top gland structure
CN113606344B (en) * 2021-07-30 2022-12-09 西安交通大学 Labyrinth seal based on optimized rotor dynamic characteristics of inter-tooth anti-rotation plate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS476263U (en) * 1971-02-12 1972-09-21
US3746462A (en) * 1970-07-11 1973-07-17 Mitsubishi Heavy Ind Ltd Stage seals for a turbine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE490276C (en) * 1927-05-31 1930-01-25 Carl Schmieske Labyrinth seal for steam and gas turbines
DE650759C (en) * 1935-04-05 1937-09-30 Rudolf Loewenstein Dipl Ing Gap seal for rotating machines
US3132906A (en) * 1959-08-26 1964-05-12 Gen Electric Hydrodynamic devices
CH528010A (en) * 1971-02-19 1972-09-15 Bbc Brown Boveri & Cie Process for influencing the vibration behavior

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746462A (en) * 1970-07-11 1973-07-17 Mitsubishi Heavy Ind Ltd Stage seals for a turbine
JPS476263U (en) * 1971-02-12 1972-09-21

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619448B2 (en) * 1976-07-19 1981-05-07
JPS5311202A (en) * 1976-07-19 1978-02-01 Hitachi Ltd Steam turbine step-setting structure
JPS53122002A (en) * 1977-03-31 1978-10-25 Hitachi Ltd Seal device
JPS5619447B2 (en) * 1977-03-31 1981-05-07
JPS5665796U (en) * 1979-10-21 1981-06-02
JPS5841037Y2 (en) * 1979-10-21 1983-09-16 三菱重工業株式会社 Two-stage washing compression dehydration equipment
JPS58178262A (en) * 1982-04-12 1983-10-19 Mitsubishi Electric Corp Voltage divider
JPS58165201U (en) * 1982-04-30 1983-11-02 三菱重工業株式会社 Turbine blade seal structure
JPH0423086B2 (en) * 1982-05-10 1992-04-21 Gen Electric
JPS58222902A (en) * 1982-05-10 1983-12-24 ゼネラル・エレクトリツク・カンパニイ Labyrinth seal for stabilizing rotor for steam turbine
JPS601306A (en) * 1983-06-16 1985-01-07 Toshiba Corp Axial flow turbine
JPS6029450A (en) * 1983-07-26 1985-02-14 Kanto Tokushu Seikou Kk Tool steel for cold working
JPS6052306U (en) * 1983-09-05 1985-04-12 三菱重工業株式会社 Labyrinth seal for turbo machinery
JPH11148308A (en) * 1997-09-19 1999-06-02 Asea Brown Boveri Ag Shroud band for axial-flow turbine
JP2011052645A (en) * 2009-09-03 2011-03-17 Mitsubishi Heavy Ind Ltd Turbine
JP2013174192A (en) * 2012-02-27 2013-09-05 Hitachi Ltd Turbo machine
JP2015520318A (en) * 2012-04-27 2015-07-16 ヌオーヴォ ピニォーネ ソチエタ レスポンサビリタ リミタータＮｕｏｖｏ Ｐｉｇｎｏｎｅ Ｓ．Ｒ．Ｌ． Highly damped labyrinth seal with spiral and spiral-cylindrical mixed patterns
JP2018150860A (en) * 2017-03-13 2018-09-27 三菱重工業株式会社 Axial flow turbine
JP2019100204A (en) * 2017-11-29 2019-06-24 三菱重工業株式会社 Turbine and rotor blade
JP2021036136A (en) * 2019-08-30 2021-03-04 三菱パワー株式会社 Rotary machine

Also Published As

Publication number Publication date
NL176388C (en) 1985-04-01
JPS5949401B2 (en) 1984-12-03
SE410488B (en) 1979-10-15
ATA215875A (en) 1990-06-15
FR2264964A1 (en) 1975-10-17
GB1505534A (en) 1978-03-30
DE2413655A1 (en) 1975-10-02
AT391918B (en) 1990-12-27
DD119847A5 (en) 1976-05-12
CS190320B2 (en) 1979-05-31
DE2413655B2 (en) 1977-09-08
NL7501673A (en) 1975-09-23
NL176388B (en) 1984-11-01
SE7503311L (en) 1975-09-22
CH589787A5 (en) 1977-07-15
DE2413655C3 (en) 1978-05-03
FR2264964B1 (en) 1979-03-02
IN144140B (en) 1978-04-01

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