GB1174170A - Elastic fluid turbine rot or cooling arrangement - Google Patents

Elastic fluid turbine rot or cooling arrangement

Info

Publication number
GB1174170A
GB1174170A GB24571/67A GB2457167A GB1174170A GB 1174170 A GB1174170 A GB 1174170A GB 24571/67 A GB24571/67 A GB 24571/67A GB 2457167 A GB2457167 A GB 2457167A GB 1174170 A GB1174170 A GB 1174170A
Authority
GB
United Kingdom
Prior art keywords
space
wheel
flow
working fluid
seal
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
GB24571/67A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1174170A publication Critical patent/GB1174170A/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
    • F01D11/02—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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/08—Heating, heat-insulating or cooling means
    • 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)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Control Of Turbines (AREA)

Abstract

1,174,170. Elastic-fluid turbine cooling. GENERAL ELECTRIC CO. May 26, 1967 [June 30, 1966], No.24571/67. Headings F1G and F1T. A cooling arrangement in a double flow steam or gas turbine comprises holes 13 in the first stage rotor wheel 2 and scoops 12 to pump working fluid from the downstream side of the wheel 2 through the holes into the annular space 11. A stationary recirculation conduit 14 connects the space 11 with the working fluid path downstream of the wheel 2. The blades 3 are shaped to have negative reaction adjacent their roots and thus the working fluid in the root region is at a slightly higher pressure on the downstream side of the wheel 2 than on the upstream side. The pressure in space 11 is therefore normally higher than in region 15 causing fluid to flow past the labyrinth seal 9 from the space to cool the seal and wheel face. Flow through the conduit 14 helps to maintain pressure in the space 11, the direction of flow depending upon the condition of the seals 9. The seal teeth 19 are inclined to permit greater flow in the direction of inclination than in the opposite direction.
GB24571/67A 1966-06-30 1967-05-26 Elastic fluid turbine rot or cooling arrangement Expired GB1174170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56198266A 1966-06-30 1966-06-30

Publications (1)

Publication Number Publication Date
GB1174170A true GB1174170A (en) 1969-12-17

Family

ID=24244308

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24571/67A Expired GB1174170A (en) 1966-06-30 1967-05-26 Elastic fluid turbine rot or cooling arrangement

Country Status (4)

Country Link
US (1) US3429557A (en)
CH (1) CH469185A (en)
GB (1) GB1174170A (en)
SE (1) SE348795B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5650084B2 (en) * 1972-04-26 1981-11-26
DE3209506A1 (en) * 1982-03-16 1983-09-22 Kraftwerk Union AG, 4330 Mülheim AXIAL STEAM TURBINE IN PARTICULAR, IN PARTICULAR VERSION
US5524340A (en) * 1994-09-13 1996-06-11 General Electric Co. Method for modifying a turbine diaphragm for use with a reduced rotor lan diameter
US8047767B2 (en) * 2005-09-28 2011-11-01 General Electric Company High pressure first stage turbine and seal assembly
EP1785586B1 (en) * 2005-10-20 2014-05-07 Siemens Aktiengesellschaft Rotor of a turbomachine
US8317458B2 (en) * 2008-02-28 2012-11-27 General Electric Company Apparatus and method for double flow turbine tub region cooling
US8662831B2 (en) * 2009-12-23 2014-03-04 General Electric Company Diaphragm shell structures for turbine engines
US8414252B2 (en) * 2010-01-04 2013-04-09 General Electric Company Method and apparatus for double flow turbine first stage cooling
JP5558120B2 (en) * 2010-01-12 2014-07-23 株式会社東芝 Steam turbine rotor cooling device and steam turbine provided with this cooling device
US8668439B2 (en) 2011-03-24 2014-03-11 General Electric Company Inserts for turbine cooling circuit
US8888437B2 (en) 2011-10-19 2014-11-18 General Electric Company Dual-flow steam turbine with steam cooling
EP2685051A1 (en) * 2012-07-12 2014-01-15 Siemens Aktiengesellschaft Inlet segment for a flow machine
JP5865204B2 (en) * 2012-07-20 2016-02-17 株式会社東芝 Axial turbine and power plant
JP6010488B2 (en) * 2013-03-11 2016-10-19 株式会社東芝 Axial turbine and power plant having the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552239A (en) * 1946-10-29 1951-05-08 Gen Electric Turbine rotor cooling arrangement
BE486024A (en) * 1947-11-28
US3189320A (en) * 1963-04-29 1965-06-15 Westinghouse Electric Corp Method of cooling turbine rotors and discs
US3206166A (en) * 1964-01-21 1965-09-14 Westinghouse Electric Corp Elastic fluid apparatus

Also Published As

Publication number Publication date
DE1551184A1 (en) 1970-02-05
CH469185A (en) 1969-02-28
US3429557A (en) 1969-02-25
DE1551184B2 (en) 1975-04-30
SE348795B (en) 1972-09-11

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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