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GB1342663A - Steam turbine stage - Google Patents

Steam turbine stage

Info

Publication number
GB1342663A
GB1342663A GB3223671A GB3223671A GB1342663A GB 1342663 A GB1342663 A GB 1342663A GB 3223671 A GB3223671 A GB 3223671A GB 3223671 A GB3223671 A GB 3223671A GB 1342663 A GB1342663 A GB 1342663A
Authority
GB
United Kingdom
Prior art keywords
steam
turbine stage
steam turbine
july
passages
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
GB3223671A
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of GB1342663A publication Critical patent/GB1342663A/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
    • 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
    • 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
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/914—Device to control boundary layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1342663 Steam turbines MITSUBISHI JUKOGYO KK 8 July 1971 [11 July 1970] 32236/71 Heading FIT To improve efficiency of a steam turbine stage some of the steam which has leaked past labyrinth seal 5 surrounding the rotor shaft is conveyed through passages 12 in the stator diaphragm 3, 4 to constitute at least some of the steam leaking between rotor shroud 7 and the surrounding casing 8. At least one fin 13 is provided downstream of the entrance to passages 12 to prevent backflow of steam through the latter. The turbine may be of reaction or impulse type.
GB3223671A 1970-07-11 1971-07-08 Steam turbine stage Expired GB1342663A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45060314A JPS501646B1 (en) 1970-07-11 1970-07-11

Publications (1)

Publication Number Publication Date
GB1342663A true GB1342663A (en) 1974-01-03

Family

ID=13138572

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3223671A Expired GB1342663A (en) 1970-07-11 1971-07-08 Steam turbine stage

Country Status (7)

Country Link
US (1) US3746462A (en)
JP (1) JPS501646B1 (en)
CA (1) CA949997A (en)
CH (1) CH529913A (en)
DE (1) DE2134514C3 (en)
FR (1) FR2100469A5 (en)
GB (1) GB1342663A (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897169A (en) * 1973-04-19 1975-07-29 Gen Electric Leakage control structure
US4370094A (en) * 1974-03-21 1983-01-25 Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft Method of and device for avoiding rotor instability to enhance dynamic power limit of turbines and compressors
DE2413655C3 (en) * 1974-03-21 1978-05-03 Maschinenfabrik Augsburg-Nuernberg Ag, 8500 Nuernberg Device for dynamic stabilization of the rotor of a gas or steam turbine
US3989410A (en) * 1974-11-27 1976-11-02 General Electric Company Labyrinth seal system
JPS5311202A (en) * 1976-07-19 1978-02-01 Hitachi Ltd Steam turbine step-setting structure
DE3376443D1 (en) * 1982-05-11 1988-06-01 Kuehnle Kopp Kausch Ag Steam turbine
GB2170867B (en) * 1985-02-12 1988-12-07 Rolls Royce Improvements in or relating to gas turbine engines
US4877373A (en) * 1988-02-08 1989-10-31 Dresser-Rand Company Vaned diffuser with small straightening vanes
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.
GB2253442B (en) * 1991-03-02 1994-08-24 Rolls Royce Plc An axial flow turbine assembly
FR2675536B1 (en) * 1991-04-19 1994-12-09 Alsthom Gec TURBINE WITH ACTION WITH ROTOR DRUM AND IMPROVEMENT WITH THESE TURBINES.
US5676521A (en) * 1996-07-22 1997-10-14 Haynes; Christopher J. Steam turbine with superheat retaining extraction
JP2003214113A (en) * 2002-01-28 2003-07-30 Toshiba Corp Geothermal turbine
WO2004113770A2 (en) * 2003-06-20 2004-12-29 Elliott Company Swirl-reversal abradable labyrinth seal
DE102008011746A1 (en) * 2008-02-28 2009-09-03 Mtu Aero Engines Gmbh Device and method for diverting a leakage current
JP5180807B2 (en) 2008-12-24 2013-04-10 三菱重工業株式会社 1st-stage stationary blade cooling structure and gas turbine
GB0901473D0 (en) * 2009-01-30 2009-03-11 Rolls Royce Plc An axial-flow turbo machine
GB0905548D0 (en) * 2009-04-01 2009-05-13 Rolls Royce Plc A rotor arrangement
US8545170B2 (en) * 2009-10-27 2013-10-01 General Electric Company Turbo machine efficiency equalizer system
JP5479058B2 (en) * 2009-12-07 2014-04-23 三菱重工業株式会社 Communication structure between combustor and turbine section, and gas turbine
JP5558138B2 (en) * 2010-02-25 2014-07-23 三菱重工業株式会社 Turbine
JP5546420B2 (en) 2010-10-29 2014-07-09 三菱重工業株式会社 Turbine
US9394797B2 (en) * 2012-12-04 2016-07-19 General Electric Company Turbomachine nozzle having fluid conduit and related turbomachine
US9394800B2 (en) * 2013-01-21 2016-07-19 General Electric Company Turbomachine having swirl-inhibiting seal
US9032733B2 (en) 2013-04-04 2015-05-19 General Electric Company Turbomachine system with direct header steam injection, related control system and program product
JP6797701B2 (en) * 2017-01-20 2020-12-09 三菱パワー株式会社 Steam turbine
EP3358142B1 (en) * 2017-02-02 2021-08-18 General Electric Company Turbine tip shroud leakage flow control
DE102018206259A1 (en) * 2018-04-24 2019-10-24 MTU Aero Engines AG GUIDE SHOVEL FOR A TURBINE OF A FLOW MACHINE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US935286A (en) * 1904-09-27 1909-09-28 Westinghouse Machine Co Elastic-fluid turbine.
US2332322A (en) * 1940-11-16 1943-10-19 Gen Electric Elastic fluid turbine arrangement
US2848155A (en) * 1950-11-22 1958-08-19 United Aircraft Corp Boundary layer control apparatus for compressors
BE624309A (en) * 1961-11-02 1963-02-15

Also Published As

Publication number Publication date
US3746462A (en) 1973-07-17
FR2100469A5 (en) 1972-03-17
DE2134514A1 (en) 1972-01-27
DE2134514B2 (en) 1973-05-03
DE2134514C3 (en) 1973-11-22
CH529913A (en) 1972-10-31
CA949997A (en) 1974-06-25
JPS501646B1 (en) 1975-01-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee