FR2630779B1 - Procede pour maintenir un jeu a l'endroit des bouts des ailettes dans un turbomoteur - Google Patents

Procede pour maintenir un jeu a l'endroit des bouts des ailettes dans un turbomoteur

Info

Publication number
FR2630779B1
FR2630779B1 FR898905830A FR8905830A FR2630779B1 FR 2630779 B1 FR2630779 B1 FR 2630779B1 FR 898905830 A FR898905830 A FR 898905830A FR 8905830 A FR8905830 A FR 8905830A FR 2630779 B1 FR2630779 B1 FR 2630779B1
Authority
FR
France
Prior art keywords
turbomotor
fins
game
maintaining
location
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 - Lifetime
Application number
FR898905830A
Other languages
English (en)
Other versions
FR2630779A1 (fr
Inventor
Robert Louis Putman
Edward John Hovan
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.)
RTX Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Publication of FR2630779A1 publication Critical patent/FR2630779A1/fr
Application granted granted Critical
Publication of FR2630779B1 publication Critical patent/FR2630779B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01D11/20—Actively adjusting tip-clearance
    • F01D11/24—Actively adjusting tip-clearance by selectively cooling-heating stator or rotor components

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
FR898905830A 1988-05-02 1989-05-02 Procede pour maintenir un jeu a l'endroit des bouts des ailettes dans un turbomoteur Expired - Lifetime FR2630779B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/189,270 US4856272A (en) 1988-05-02 1988-05-02 Method for maintaining blade tip clearance

Publications (2)

Publication Number Publication Date
FR2630779A1 FR2630779A1 (fr) 1989-11-03
FR2630779B1 true FR2630779B1 (fr) 1991-11-22

Family

ID=22696642

Family Applications (1)

Application Number Title Priority Date Filing Date
FR898905830A Expired - Lifetime FR2630779B1 (fr) 1988-05-02 1989-05-02 Procede pour maintenir un jeu a l'endroit des bouts des ailettes dans un turbomoteur

Country Status (3)

Country Link
US (1) US4856272A (fr)
FR (1) FR2630779B1 (fr)
GB (1) GB2218158A (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652858B1 (fr) * 1989-10-11 1993-05-07 Snecma Stator de turbomachine associe a des moyens de deformation.
US5081830A (en) * 1990-05-25 1992-01-21 United Technologies Corporation Method of restoring exhaust gas temperature margin in a gas turbine engine
US6463380B1 (en) * 1999-06-01 2002-10-08 General Electric Company Control system and method for controlling an engine in response to deterioration of the engine
US6681558B2 (en) 2001-03-26 2004-01-27 General Electric Company Method of increasing engine temperature limit margins
US6935120B2 (en) * 2002-05-09 2005-08-30 General Electric Company Approach to extending life of gas turbine engine
US6925814B2 (en) * 2003-04-30 2005-08-09 Pratt & Whitney Canada Corp. Hybrid turbine tip clearance control system
US20050109016A1 (en) * 2003-11-21 2005-05-26 Richard Ullyott Turbine tip clearance control system
US7708518B2 (en) * 2005-06-23 2010-05-04 Siemens Energy, Inc. Turbine blade tip clearance control
US7431557B2 (en) * 2006-05-25 2008-10-07 General Electric Company Compensating for blade tip clearance deterioration in active clearance control
US8126628B2 (en) * 2007-08-03 2012-02-28 General Electric Company Aircraft gas turbine engine blade tip clearance control
US7775107B2 (en) * 2007-10-03 2010-08-17 Hamilton Sundstrand Corporation Measuring rotor imbalance via blade clearance sensors
US8296037B2 (en) * 2008-06-20 2012-10-23 General Electric Company Method, system, and apparatus for reducing a turbine clearance
US8092153B2 (en) * 2008-12-16 2012-01-10 Pratt & Whitney Canada Corp. Bypass air scoop for gas turbine engine
GB201201094D0 (en) * 2012-01-24 2012-03-07 Rolls Royce Plc Improvements in or relating to gas turbine engine control
US20130251500A1 (en) * 2012-03-23 2013-09-26 Kin-Leung Cheung Gas turbine engine case with heating layer and method
GB201514896D0 (en) 2015-08-21 2015-10-07 Rolls Royce Plc Rotor tip clearance
US10539079B2 (en) 2016-02-12 2020-01-21 United Technologies Corporation Bowed rotor start mitigation in a gas turbine engine using aircraft-derived parameters
US10443505B2 (en) * 2016-02-12 2019-10-15 United Technologies Corporation Bowed rotor start mitigation in a gas turbine engine
US10040577B2 (en) 2016-02-12 2018-08-07 United Technologies Corporation Modified start sequence of a gas turbine engine
US10794286B2 (en) * 2016-02-16 2020-10-06 General Electric Company Method and system for modulated turbine cooling as a function of engine health
GB2552048A (en) * 2016-03-22 2018-01-10 Gen Electric Method, system, and apparatus for reducing a turbine clearance
US9988928B2 (en) * 2016-05-17 2018-06-05 Siemens Energy, Inc. Systems and methods for determining turbomachine engine safe start clearances following a shutdown of the turbomachine engine
GB2553806B (en) * 2016-09-15 2019-05-29 Rolls Royce Plc Turbine tip clearance control method and system
US10914185B2 (en) * 2016-12-02 2021-02-09 General Electric Company Additive manufactured case with internal passages for active clearance control
US10801359B2 (en) 2017-03-14 2020-10-13 General Electric Company Method and system for identifying rub events
US10378376B2 (en) * 2017-04-04 2019-08-13 General Electric Company Method and system for adjusting an operating parameter as a function of component health
US11713689B2 (en) 2021-01-18 2023-08-01 General Electric Company Clearance design process and strategy with CCA-ACC optimization for EGT and performance improvement

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1248198A (en) * 1970-02-06 1971-09-29 Rolls Royce Sealing device
US4019320A (en) * 1975-12-05 1977-04-26 United Technologies Corporation External gas turbine engine cooling for clearance control
US4069662A (en) * 1975-12-05 1978-01-24 United Technologies Corporation Clearance control for gas turbine engine
US4213296A (en) * 1977-12-21 1980-07-22 United Technologies Corporation Seal clearance control system for a gas turbine
US4304093A (en) * 1979-08-31 1981-12-08 General Electric Company Variable clearance control for a gas turbine engine
US4363599A (en) * 1979-10-31 1982-12-14 General Electric Company Clearance control
US4487016A (en) * 1980-10-01 1984-12-11 United Technologies Corporation Modulated clearance control for an axial flow rotary machine
US4648241A (en) * 1983-11-03 1987-03-10 United Technologies Corporation Active clearance control

Also Published As

Publication number Publication date
FR2630779A1 (fr) 1989-11-03
US4856272A (en) 1989-08-15
GB8909974D0 (en) 1989-06-21
GB2218158A (en) 1989-11-08

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Legal Events

Date Code Title Description
ST Notification of lapse