EP0849530A3 - Fuel nozzles and centerbodies therefor - Google Patents

Fuel nozzles and centerbodies therefor Download PDF

Info

Publication number
EP0849530A3
EP0849530A3 EP97310464A EP97310464A EP0849530A3 EP 0849530 A3 EP0849530 A3 EP 0849530A3 EP 97310464 A EP97310464 A EP 97310464A EP 97310464 A EP97310464 A EP 97310464A EP 0849530 A3 EP0849530 A3 EP 0849530A3
Authority
EP
European Patent Office
Prior art keywords
centerbodies
therefor
combustor
distance
fuel nozzles
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.)
Ceased
Application number
EP97310464A
Other languages
German (de)
French (fr)
Other versions
EP0849530A2 (en
Inventor
Stephen K. Kramer
Stephen F. Hauck
Timothy S. Snyder
William A. Sowa
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
Priority claimed from US08/770,277 external-priority patent/US5887795A/en
Priority claimed from US08/771,460 external-priority patent/US5791562A/en
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of EP0849530A2 publication Critical patent/EP0849530A2/en
Publication of EP0849530A3 publication Critical patent/EP0849530A3/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
    • F23D17/002—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel gaseous or liquid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/23—Geometry three-dimensional prismatic
    • F05B2250/232—Geometry three-dimensional prismatic conical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/30—Arrangement of components
    • F05B2250/32—Arrangement of components according to their shape
    • F05B2250/322—Arrangement of components according to their shape tangential
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/07002—Premix burners with air inlet slots obtained between offset curved wall surfaces, e.g. double cone burners

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Spray-Type Burners (AREA)

Abstract

A tangential air entry fuel nozzle (10) has a combustor inlet port (20) to permit air and fuel to exit into a combustor (56). The port includes a convergent surface (116), a combustor surface, and a cylindrical surface (118) extending therebetween. The convergent surface extends a first distance along the longitudinal axis (26) of the nozzle, the cylindrical surface extends a second distance along the axis, and the second distance is at least 30% of the first distance.
EP97310464A 1996-12-20 1997-12-22 Fuel nozzles and centerbodies therefor Ceased EP0849530A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US770277 1985-08-28
US771460 1985-08-30
US08/770,277 US5887795A (en) 1996-12-20 1996-12-20 Premix fuel injector with low acoustics
US08/771,460 US5791562A (en) 1996-12-20 1996-12-20 Conical centerbody for a two stream tangential entry nozzle

Publications (2)

Publication Number Publication Date
EP0849530A2 EP0849530A2 (en) 1998-06-24
EP0849530A3 true EP0849530A3 (en) 1999-06-09

Family

ID=27118291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97310464A Ceased EP0849530A3 (en) 1996-12-20 1997-12-22 Fuel nozzles and centerbodies therefor

Country Status (1)

Country Link
EP (1) EP0849530A3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6176087B1 (en) 1997-12-15 2001-01-23 United Technologies Corporation Bluff body premixing fuel injector and method for premixing fuel and air
AUPP793698A0 (en) * 1998-12-24 1999-01-28 Luminis Pty Limited Device to provide fluid mixing which is sensitive to direction and speed of external flows
US6625971B2 (en) 2001-09-14 2003-09-30 United Technologies Corporation Fuel nozzle producing skewed spray pattern
GB2432655A (en) * 2005-11-26 2007-05-30 Siemens Ag Combustion apparatus
CN101285591B (en) * 2008-04-22 2010-06-09 北京航空航天大学 Integral fuel jet radial swirler pre-mixing preevaporated low pollution combustion-chamber
EP2703721B1 (en) 2012-08-31 2019-05-22 Ansaldo Energia IP UK Limited Premix burner
EP2725302A1 (en) 2012-10-25 2014-04-30 Alstom Technology Ltd Reheat burner arrangement
US9709278B2 (en) * 2014-03-12 2017-07-18 General Electric Company System and method for control of combustion dynamics in combustion system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995023316A1 (en) * 1994-02-24 1995-08-31 United Technologies Corporation Tangential entry fuel nozzle
WO1996019699A1 (en) * 1994-12-22 1996-06-27 United Technologies Corporation LOW NOx FUEL NOZZLE ASSEMBLY
DE19545310A1 (en) * 1995-12-05 1997-06-12 Asea Brown Boveri Pre-mixing burner for mixing fuel and combustion air before ignition

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307634A (en) 1992-02-26 1994-05-03 United Technologies Corporation Premix gas nozzle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995023316A1 (en) * 1994-02-24 1995-08-31 United Technologies Corporation Tangential entry fuel nozzle
WO1996019699A1 (en) * 1994-12-22 1996-06-27 United Technologies Corporation LOW NOx FUEL NOZZLE ASSEMBLY
DE19545310A1 (en) * 1995-12-05 1997-06-12 Asea Brown Boveri Pre-mixing burner for mixing fuel and combustion air before ignition

Also Published As

Publication number Publication date
EP0849530A2 (en) 1998-06-24

Similar Documents

Publication Publication Date Title
EP0904842A3 (en) Improved air assisted spray system
EP1211459A3 (en) Combustion apparatus
EP0999413A3 (en) Hybride combustor and fuel nozzle therefor
EP0735318A3 (en) Variable geometry fuel injector
EP1493965A3 (en) Fuel injector for gas turbine engine
EP0823593A3 (en) Low emission swirl burner
EP1767852A3 (en) Coke resistant fuel injector
CA2176817A1 (en) Engine Exhaust Gas Deflection System
EP0789131A3 (en) Downhole abrasive slurry delivery apparatus
EP1186774A3 (en) Nozzle for a fuel injector
EP0918155A3 (en) Fuel injection valve
EP0800038A3 (en) Nozzle for diffusion and premix combustion in a turbine
EP1340895A3 (en) A liquid droplet injection device
EP0924469A3 (en) Venturiless swirl cup
PL288225A1 (en) Burner and method of operating it
CA2103433A1 (en) Tertiary fuel injection system for use in a dry low nox combustion system
EP0803682A3 (en) Combustor for gas - or liquid - fuelled turbine
EP0849530A3 (en) Fuel nozzles and centerbodies therefor
EP0841518A3 (en) Heat gun with high performance jet pump and quick change attachments
EP0943868A3 (en) Gas turbine combustor
EP1031510A3 (en) Turbo fan engine nacelle exhaust system with concave primary nozzle plug
EP0969249A3 (en) Wide flame burner
EP0849527A3 (en) Method of combustion with a two stream tangential entry nozzle
CA2202541A1 (en) Tangential air entry fuel nozzle
EP0849528A3 (en) Two stream tangential entry nozzle

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990519

AKX Designation fees paid

Free format text: DE FR GB

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20020508

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20030117