FR2264964B1 - - Google Patents

Info

Publication number
FR2264964B1
FR2264964B1 FR7508705A FR7508705A FR2264964B1 FR 2264964 B1 FR2264964 B1 FR 2264964B1 FR 7508705 A FR7508705 A FR 7508705A FR 7508705 A FR7508705 A FR 7508705A FR 2264964 B1 FR2264964 B1 FR 2264964B1
Authority
FR
France
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
FR7508705A
Other languages
French (fr)
Other versions
FR2264964A1 (en
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg AG
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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Publication of FR2264964A1 publication Critical patent/FR2264964A1/en
Priority claimed from US05/957,290 external-priority patent/US4370094A/en
Application granted granted Critical
Publication of FR2264964B1 publication Critical patent/FR2264964B1/fr
Granted 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
FR7508705A 1974-03-21 1975-03-20 Method for raising the dynamic power limit of turbines and compressors and means for its implementation Granted FR2264964A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
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
FR2264964A1 FR2264964A1 (en) 1975-10-17
FR2264964B1 true FR2264964B1 (en) 1979-03-02

Family

ID=27431835

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7508705A Granted FR2264964A1 (en) 1974-03-21 1975-03-20 Method for raising the dynamic power limit of turbines and compressors and means for its implementation

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)

Families Citing this family (38)

* 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
GB1560974A (en) * 1977-03-26 1980-02-13 Rolls Royce Sealing system for rotors
JPS53122002A (en) * 1977-03-31 1978-10-25 Hitachi Ltd Seal device
FR2406074A1 (en) * 1977-10-11 1979-05-11 Snecma SAFETY DEVICE FOR AXIAL ROTATING MACHINE
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
US4420161A (en) * 1982-05-10 1983-12-13 General Electric Company Rotor stabilizing labyrinth seals for steam turbines
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
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
DE59710621D1 (en) * 1997-09-19 2003-09-25 Alstom Switzerland Ltd Gap sealing device
EP0943849A1 (en) 1998-03-19 1999-09-22 Asea Brown Boveri AG Contactless seal for turbomachines
DE59810557D1 (en) 1998-11-10 2004-02-12 Alstom Switzerland Ltd Tip seal for turbine blades
DE59808709D1 (en) 1998-11-10 2003-07-17 Alstom Switzerland Ltd Tip seal for turbine blades
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
JP5517530B2 (en) * 2009-09-03 2014-06-11 三菱重工業株式会社 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
JP5643245B2 (en) * 2012-02-27 2014-12-17 三菱日立パワーシステムズ株式会社 Turbo machine
ITCO20120019A1 (en) * 2012-04-27 2013-10-28 Nuovo Pignone Srl LABYRINTH HIGHLY DAMPENED SEALS WITH HELICOIDAL AND CYLINDRICAL-MIXED SHAPE
WO2014162767A1 (en) 2013-04-03 2014-10-09 三菱重工業株式会社 Rotating machine
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
JP6827346B2 (en) * 2017-03-13 2021-02-10 三菱重工業株式会社 Axial turbine
JP6986426B2 (en) * 2017-11-29 2021-12-22 三菱重工業株式会社 Turbine
JP6924233B2 (en) * 2019-08-30 2021-08-25 三菱パワー株式会社 Rotating machine
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

Family Cites Families (6)

* 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
JPS501646B1 (en) * 1970-07-11 1975-01-20
JPS476263U (en) * 1971-02-12 1972-09-21
CH528010A (en) * 1971-02-19 1972-09-15 Bbc Brown Boveri & Cie Process for influencing the vibration behavior

Also Published As

Publication number Publication date
CS190320B2 (en) 1979-05-31
ATA215875A (en) 1990-06-15
FR2264964A1 (en) 1975-10-17
IN144140B (en) 1978-04-01
GB1505534A (en) 1978-03-30
DD119847A5 (en) 1976-05-12
JPS50128008A (en) 1975-10-08
DE2413655B2 (en) 1977-09-08
NL7501673A (en) 1975-09-23
SE7503311L (en) 1975-09-22
DE2413655C3 (en) 1978-05-03
AT391918B (en) 1990-12-27
NL176388B (en) 1984-11-01
SE410488B (en) 1979-10-15
CH589787A5 (en) 1977-07-15
DE2413655A1 (en) 1975-10-02
NL176388C (en) 1985-04-01
JPS5949401B2 (en) 1984-12-03

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