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FR3129691B1 - INJECTOR FOR A TURBOMACHINE - Google Patents

INJECTOR FOR A TURBOMACHINE Download PDF

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Publication number
FR3129691B1
FR3129691B1 FR2112731A FR2112731A FR3129691B1 FR 3129691 B1 FR3129691 B1 FR 3129691B1 FR 2112731 A FR2112731 A FR 2112731A FR 2112731 A FR2112731 A FR 2112731A FR 3129691 B1 FR3129691 B1 FR 3129691B1
Authority
FR
France
Prior art keywords
duct
injector
turbomachine
screen
heat shield
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.)
Active
Application number
FR2112731A
Other languages
French (fr)
Other versions
FR3129691A1 (en
Inventor
Nicolas Marie Keruzore
Quentin Pautonnier
Julien Dahan
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.)
Safran Aircraft Engines SAS
Original Assignee
Safran Aircraft Engines SAS
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 Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR2112731A priority Critical patent/FR3129691B1/en
Publication of FR3129691A1 publication Critical patent/FR3129691A1/en
Application granted granted Critical
Publication of FR3129691B1 publication Critical patent/FR3129691B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/22—Fuel supply systems
    • F02C7/222—Fuel flow conduits, e.g. manifolds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
    • F23R3/283—Attaching or cooling of fuel injecting means including supports for fuel injectors, stems, or lances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/20—Heat transfer, e.g. cooling
    • F05D2260/231—Preventing heat transfer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00018—Manufacturing combustion chamber liners or subparts

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

Injecteur (2) pour une turbomachine (1) comprenant un corps allongé (3) suivant un axe longitudinal (X), le corps (3) comprenant au moins un premier conduit (4) d’alimentation d’une tête de pulvérisation (5), l’injecteur (2) comprenant en outre un écran thermique (6) disposé à distance autour du premier conduit (4), caractérisé en ce que le premier conduit (4) et l’écran thermique (6) définissent entre eux une cavité (7) annulaire étanche, la cavité (7) étant radialement délimitée par une peau externe (8) du premier conduit (4) et une paroi interne (9) de l’écran (6), l’injecteur (2) comprenant au moins un dépôt de carburant cokéfié (10a, 10b) sur la peau externe (8) du premier conduit (4) et la paroi interne (9) de l’écran (6). Figure pour l'abrégé : 1Injector (2) for a turbomachine (1) comprising an elongated body (3) along a longitudinal axis (X), the body (3) comprising at least a first duct (4) for supplying a spray head (5), the injector (2) further comprising a heat shield (6) arranged at a distance around the first duct (4), characterized in that the first duct (4) and the heat shield (6) define between them a sealed annular cavity (7), the cavity (7) being radially delimited by an external skin (8) of the first duct (4) and an internal wall (9) of the screen (6), the injector (2) comprising at least one deposit of coked fuel (10a, 10b) on the external skin (8) of the first duct (4) and the internal wall (9) of the screen (6). Figure for abstract: 1

FR2112731A 2021-11-30 2021-11-30 INJECTOR FOR A TURBOMACHINE Active FR3129691B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2112731A FR3129691B1 (en) 2021-11-30 2021-11-30 INJECTOR FOR A TURBOMACHINE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2112731 2021-11-30
FR2112731A FR3129691B1 (en) 2021-11-30 2021-11-30 INJECTOR FOR A TURBOMACHINE

Publications (2)

Publication Number Publication Date
FR3129691A1 FR3129691A1 (en) 2023-06-02
FR3129691B1 true FR3129691B1 (en) 2024-08-16

Family

ID=80225591

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2112731A Active FR3129691B1 (en) 2021-11-30 2021-11-30 INJECTOR FOR A TURBOMACHINE

Country Status (1)

Country Link
FR (1) FR3129691B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6076356A (en) * 1996-03-13 2000-06-20 Parker-Hannifin Corporation Internally heatshielded nozzle
US6182437B1 (en) * 1999-06-24 2001-02-06 Pratt & Whitney Canada Corp. Fuel injector heat shield
WO2014189602A2 (en) * 2013-03-14 2014-11-27 United Technologies Corporation Hollow-wall heat shield for fuel injector component
US9791153B2 (en) * 2015-02-27 2017-10-17 United Technologies Corporation Line replaceable fuel nozzle apparatus, system and method

Also Published As

Publication number Publication date
FR3129691A1 (en) 2023-06-02

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