CA2597846C - Pilot fuel injector for mixer assembly of a high pressure gas turbine engine - Google Patents

Pilot fuel injector for mixer assembly of a high pressure gas turbine engine Download PDF

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Publication number
CA2597846C
CA2597846C CA2597846A CA2597846A CA2597846C CA 2597846 C CA2597846 C CA 2597846C CA 2597846 A CA2597846 A CA 2597846A CA 2597846 A CA2597846 A CA 2597846A CA 2597846 C CA2597846 C CA 2597846C
Authority
CA
Canada
Prior art keywords
fuel injector
primary
air stream
gas turbine
turbine engine
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
CA2597846A
Other languages
French (fr)
Other versions
CA2597846A1 (en
Inventor
Alfred Albert Mancini
Hukam Chand Mongia
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
Priority to CA2597846A priority Critical patent/CA2597846C/en
Publication of CA2597846A1 publication Critical patent/CA2597846A1/en
Application granted granted Critical
Publication of CA2597846C publication Critical patent/CA2597846C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/106—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting at the burner outlet
    • F23D11/107—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting at the burner outlet at least one of both being subjected to a swirling motion
    • 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
    • F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/04—Air inlet arrangements
    • F23R3/10—Air inlet arrangements for primary air
    • F23R3/12—Air inlet arrangements for primary air inducing a vortex
    • F23R3/14—Air inlet arrangements for primary air inducing a vortex by using swirl vanes
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/11101—Pulverising gas flow impinging on fuel from pre-filming surface, e.g. lip atomizers
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

A mixer assembly (67) for a gas turbine engine (10), including: a primary fuel injector (110) having a central axis (120) for injecting a primary fuel spray into a primary air stream, wherein fuel is provided at a desired rate and droplets of the fuel spray are within a desired size range; a secondary fuel injector (128) positioned radially outwardly of the primary fuel injector (110) for injecting a secondary fuel spray into a secondary air stream spaced radially outwardly of and surrounding the primary air stream; and, a primary air jet positioned between the primary fuel injector (110) and the secondary fuel injector (128) to direct a portion of an incoming air stream between the primary air stream and the secondary air stream.
CA2597846A 2007-08-16 2007-08-16 Pilot fuel injector for mixer assembly of a high pressure gas turbine engine Active CA2597846C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2597846A CA2597846C (en) 2007-08-16 2007-08-16 Pilot fuel injector for mixer assembly of a high pressure gas turbine engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2597846A CA2597846C (en) 2007-08-16 2007-08-16 Pilot fuel injector for mixer assembly of a high pressure gas turbine engine

Publications (2)

Publication Number Publication Date
CA2597846A1 CA2597846A1 (en) 2009-02-16
CA2597846C true CA2597846C (en) 2014-10-14

Family

ID=40374830

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2597846A Active CA2597846C (en) 2007-08-16 2007-08-16 Pilot fuel injector for mixer assembly of a high pressure gas turbine engine

Country Status (1)

Country Link
CA (1) CA2597846C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10203114B2 (en) 2016-03-04 2019-02-12 General Electric Company Sleeve assemblies and methods of fabricating same
US10228141B2 (en) 2016-03-04 2019-03-12 General Electric Company Fuel supply conduit assemblies

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10184665B2 (en) * 2015-06-10 2019-01-22 General Electric Company Prefilming air blast (PAB) pilot having annular splitter surrounding a pilot fuel injector
US9927126B2 (en) 2015-06-10 2018-03-27 General Electric Company Prefilming air blast (PAB) pilot for low emissions combustors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10203114B2 (en) 2016-03-04 2019-02-12 General Electric Company Sleeve assemblies and methods of fabricating same
US10228141B2 (en) 2016-03-04 2019-03-12 General Electric Company Fuel supply conduit assemblies

Also Published As

Publication number Publication date
CA2597846A1 (en) 2009-02-16

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Legal Events

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EEER Examination request