EP0103260A3 - Clearance control for turbine blade tips - Google Patents

Clearance control for turbine blade tips Download PDF

Info

Publication number
EP0103260A3
EP0103260A3 EP83108779A EP83108779A EP0103260A3 EP 0103260 A3 EP0103260 A3 EP 0103260A3 EP 83108779 A EP83108779 A EP 83108779A EP 83108779 A EP83108779 A EP 83108779A EP 0103260 A3 EP0103260 A3 EP 0103260A3
Authority
EP
European Patent Office
Prior art keywords
blade tips
guide vane
turbine
turbine blade
clearance control
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.)
Withdrawn
Application number
EP83108779A
Other languages
German (de)
French (fr)
Other versions
EP0103260A2 (en
Inventor
Masami Noda
Takashi Ikeguchi
Kazuhiko Kawaike
Katsuo Wada
Yasuhiro Mr. Kato
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.)
Hitachi Ltd
Original Assignee
Hitachi 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
Priority claimed from JP15392382A external-priority patent/JPS5943905A/en
Priority claimed from JP19898682A external-priority patent/JPS5990706A/en
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP0103260A2 publication Critical patent/EP0103260A2/en
Publication of EP0103260A3 publication Critical patent/EP0103260A3/en
Withdrawn legal-status Critical Current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
    • F01D11/14—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing
    • F01D11/16—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing by self-adjusting means
    • F01D11/18—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing by self-adjusting means using stator or rotor components with predetermined thermal response, e.g. selective insulation, thermal inertia, differential expansion
    • 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

Landscapes

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

Abstract

A turbine comprising a casing in which are disposed a turbine rotor assembly which provides a plurality of turbine blades and a guide vane assembly which provides a plurality of guide vane segments, and there being shrouds spaced from turbine blade tips. To control the clearance between the tur­ bine blade tips and the shrouds at a small value by simple structure, the guide vane segments are made movable freely in the radial direction and inside parts of the guide vane seg­ ments are fixed to a stationary member.
EP83108779A 1982-09-06 1983-09-06 Clearance control for turbine blade tips Withdrawn EP0103260A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP15392382A JPS5943905A (en) 1982-09-06 1982-09-06 Adjuster for gap at tip of rotor blade of axial flow turbine
JP153923/82 1982-09-06
JP198986/82 1982-11-15
JP19898682A JPS5990706A (en) 1982-11-15 1982-11-15 Device for adjusting clearance at extremity end of moving blade of axial flow trubine

Publications (2)

Publication Number Publication Date
EP0103260A2 EP0103260A2 (en) 1984-03-21
EP0103260A3 true EP0103260A3 (en) 1984-09-26

Family

ID=26482405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108779A Withdrawn EP0103260A3 (en) 1982-09-06 1983-09-06 Clearance control for turbine blade tips

Country Status (1)

Country Link
EP (1) EP0103260A3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2206651B (en) * 1987-07-01 1991-05-08 Rolls Royce Plc Turbine blade shroud structure
DE19618314A1 (en) * 1996-05-08 1997-11-13 Asea Brown Boveri Exhaust gas turbine of an exhaust gas turbocharger
ES2286054T3 (en) * 2001-04-12 2007-12-01 Siemens Aktiengesellschaft GAS TURBINE WITH AXIALLY DISPLACABLE HOUSING PIECES.
GB0119608D0 (en) 2001-08-11 2001-10-03 Rolls Royce Plc A guide vane assembly
EP1995413B1 (en) * 2007-04-05 2010-04-28 ALSTOM Technology Ltd Gap seal for airfoils of a turbomachine
US8459035B2 (en) 2007-07-27 2013-06-11 United Technologies Corporation Gas turbine engine with low fan pressure ratio
US8347633B2 (en) 2007-07-27 2013-01-08 United Technologies Corporation Gas turbine engine with variable geometry fan exit guide vane system
CN102348868B (en) 2009-01-20 2014-11-05 威廉国际有限责任公司 Turbocharger core and turbine nozzle cartridge assembly
EP2305753B1 (en) 2009-09-25 2012-02-29 Evonik RohMax Additives GmbH A composition to improve cold flow properties of fuel oils
CN103370400B (en) 2011-03-25 2016-12-14 赢创油品添加剂有限公司 For improving the compositions of fuel oil oxidation stability
CN114607474A (en) * 2022-03-21 2022-06-10 中国联合重型燃气轮机技术有限公司 Stator blade clearance control system and gas turbine with same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849209A (en) * 1950-10-11 1958-08-26 Gen Electric Nozzle construction for turbines
US3532437A (en) * 1967-11-03 1970-10-06 Sulzer Ag Stator blade assembly for axial-flow turbines
GB1534660A (en) * 1976-05-05 1978-12-06 Stal Laval Turbin Ab Sealing arrangement in a gas turbine
GB2034415A (en) * 1978-11-13 1980-06-04 Gen Motors Corp Turbine stator mounting
GB2061396A (en) * 1979-10-24 1981-05-13 Rolls Royce Turbine blade tip clearance control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849209A (en) * 1950-10-11 1958-08-26 Gen Electric Nozzle construction for turbines
US3532437A (en) * 1967-11-03 1970-10-06 Sulzer Ag Stator blade assembly for axial-flow turbines
GB1534660A (en) * 1976-05-05 1978-12-06 Stal Laval Turbin Ab Sealing arrangement in a gas turbine
GB2034415A (en) * 1978-11-13 1980-06-04 Gen Motors Corp Turbine stator mounting
GB2061396A (en) * 1979-10-24 1981-05-13 Rolls Royce Turbine blade tip clearance control

Also Published As

Publication number Publication date
EP0103260A2 (en) 1984-03-21

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19830906

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): CH DE FR GB IT LI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19851203

RIN1 Information on inventor provided before grant (corrected)

Inventor name: NODA, MASAMI

Inventor name: KATO, YASUHIRO, MR.

Inventor name: IKEGUCHI, TAKASHI

Inventor name: KAWAIKE, KAZUHIKO

Inventor name: WADA, KATSUO