EP0043908A1 - Injecteur pour injection continue de carburant - Google Patents

Injecteur pour injection continue de carburant Download PDF

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Publication number
EP0043908A1
EP0043908A1 EP81104123A EP81104123A EP0043908A1 EP 0043908 A1 EP0043908 A1 EP 0043908A1 EP 81104123 A EP81104123 A EP 81104123A EP 81104123 A EP81104123 A EP 81104123A EP 0043908 A1 EP0043908 A1 EP 0043908A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
annular
annular gap
air supply
air
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.)
Granted
Application number
EP81104123A
Other languages
German (de)
English (en)
Other versions
EP0043908B1 (fr
Inventor
Karl-Heinz Dipl.-Ing. Collin
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of EP0043908A1 publication Critical patent/EP0043908A1/fr
Application granted granted Critical
Publication of EP0043908B1 publication Critical patent/EP0043908B1/fr
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to an atomizer nozzle for continuous fuel injection, preferably in combustion chambers of gas turbines, with a central nozzle body for supplying fuel and an arrangement concentric with it for annular supply of air.
  • An atomizer nozzle of the type mentioned in which the air coming from the compressor is guided in a ring in a concentric ring to the nozzle body and in the vicinity of the nozzle opening a swirl device is intended to improve the atomization (DE-OS 15 01 934). Since the air and the fuel move essentially in the same direction, the fuel and air are swirled at most in an edge zone of the fuel jet. The swirl device creates a pressure drop without achieving the intended effect.
  • the invention has for its object to provide a simple atomizer nozzle for continuous fuel injection, which does not require any moving parts and ensures a high degree of atomization with little air addition.
  • This object is achieved in that the nozzle body has a coaxial, open nozzle bore, that the arrangement for supplying air from a ring body with there is an internal annular gap which is arranged in a plane perpendicular to the axis of the nozzle bore, the air supply from the annular gap in this plane being directed radially symmetrically inwards, that the annular gap is arranged behind the nozzle bore in the injection direction and an interior space is formed between the nozzle bore and the annular gap which is connected to the surrounding space by pressure compensation openings.
  • the atomization of a fuel jet is essentially based on the disturbance of the surface tensions of the liquid cylinder which forms after leaving the jet from the nozzle bore. If, for disturbing the surface tension, an air jet is used which, according to the invention, emerges from an annular gap arranged around the free fuel jet, so that the air hits the fuel jet in a vertical plane in a radial symmetry, then small amounts of air and a low air pressure and thus a low air delivery rate are sufficient to atomize one certain amount of fuel.
  • An essential feature of this atomizing nozzle is that the fuel jet exits into a room which has the same pressure as the room into which the fuel mist is conveyed.
  • the pressure equalization openings according to the invention are provided, through which the air delivery capacity required for atomization can be significantly reduced. While known versions 10 to 25 need for delivery rate for fuel atomization, the injection nozzle designed according to the invention comes with about 0.5 to 3.0 out. The atomization of the liquid is so fine that a liquid mist is created, the expansion of which is carried out by the supplied air. The guidance of the air and not the direction of the fuel supply thus gives the spray angle.
  • the atomizer nozzle is composed of a single nozzle body with the central nozzle bore and a special ring body with an annular nozzle.
  • spacers which are fixedly arranged on one or the other part or by means of interposed ones, pressure compensation openings between the two parts are formed by the gaps between the spacers when connecting by means of screws or rivets.
  • the air is supplied through an annular nozzle which generates a sharp jet with a narrowed gap. This can further increase the atomizing effect.
  • the injection nozzle is used in combination with evaporator tubes, such as those used in gas turbine ring combustion chambers, the generation of a fuel mist is only necessary in the starting phase. In all other engine operating conditions, the nozzle works as a simple one Spray tube that the air supply is switched off according to the invention. The fuel evaporation is then carried out exclusively by the heated evaporation pipes.
  • the figure shows a section through an atomizing nozzle according to the invention.
  • the nozzle body 1 with the central nozzle bore 2 and an annular body 3 with the annular gap 4 are connected by screws 5.
  • Spacers 6 in the form of washers are arranged between the nozzle body 1 and the ring body 3, through which the pressure compensation openings 7 are created.
  • the annular body 3 has an inner annular space 8, into which an air supply line 9 opens.
  • the pressure compensation openings 7 represent the connection between an interior space 11 located between the nozzle bore 2 and the annular gap 4 and the surrounding space 10 located outside the annular body 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
EP81104123A 1980-07-16 1981-05-29 Injecteur pour injection continue de carburant Expired EP0043908B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3026832 1980-07-16
DE19803026832 DE3026832A1 (de) 1980-07-16 1980-07-16 Zerstaeuberduese fuer kontinuierliche brennstoffeinspritzung

Publications (2)

Publication Number Publication Date
EP0043908A1 true EP0043908A1 (fr) 1982-01-20
EP0043908B1 EP0043908B1 (fr) 1984-04-25

Family

ID=6107273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104123A Expired EP0043908B1 (fr) 1980-07-16 1981-05-29 Injecteur pour injection continue de carburant

Country Status (3)

Country Link
US (1) US4437314A (fr)
EP (1) EP0043908B1 (fr)
DE (2) DE3026832A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140981A (ja) * 1984-07-17 1986-02-27 アルテユロ　サリス　ソシエタ　ペル　アツイオーニ 家具用ヒンジ
EP0209631A1 (fr) * 1985-07-24 1987-01-28 Deutsche Babcock Werke Aktiengesellschaft Procédé et brûleur pour la combustion de combustible liquide
EP0242329A2 (fr) 1986-04-15 1987-10-21 Ciba-Geigy Ag Anticörps monoclonaux contre protéine humaine induite par l'interféron sous forme purifiée, et trousses d'essai contenant ces anticorps

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263316A (en) * 1989-12-21 1993-11-23 Sundstrand Corporation Turbine engine with airblast injection
US5265425A (en) * 1991-09-23 1993-11-30 General Electric Company Aero-slinger combustor
US5490632A (en) * 1993-04-13 1996-02-13 Haynes; Henry T. Venting device and method
DE19519838C2 (de) * 1995-05-31 1997-11-20 Bosch Gmbh Robert Verfahren zur Beeinflussung der Ausrichtung von Brennstoff an einem Brennstoffeinspritzventil und Brennstoffeinspritzventil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1157039A (en) * 1967-02-20 1969-07-02 Gen Motors Corp Fuel Spray Nozzle
CH529973A (de) * 1970-04-30 1972-10-31 Gen Electric Brenner für flüssige Brennstoffe
CH560356A5 (fr) * 1972-11-09 1975-03-27 Mitsubishi Heavy Ind Ltd
GB1478394A (en) * 1973-09-10 1977-06-29 Gen Electric Apparatus for supplying a mixture of fuel and air to a combustion chamber

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2320442C3 (de) * 1973-04-21 1978-04-27 Smit Nijmegen B.V., Nijmegen (Niederlande) Brenner zur Verbrennung von flüssigem Brennstoff

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1157039A (en) * 1967-02-20 1969-07-02 Gen Motors Corp Fuel Spray Nozzle
CH529973A (de) * 1970-04-30 1972-10-31 Gen Electric Brenner für flüssige Brennstoffe
CH560356A5 (fr) * 1972-11-09 1975-03-27 Mitsubishi Heavy Ind Ltd
GB1478394A (en) * 1973-09-10 1977-06-29 Gen Electric Apparatus for supplying a mixture of fuel and air to a combustion chamber

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140981A (ja) * 1984-07-17 1986-02-27 アルテユロ　サリス　ソシエタ　ペル　アツイオーニ 家具用ヒンジ
JPH0445637B2 (fr) * 1984-07-17 1992-07-27 Salice Arturo Spa
EP0209631A1 (fr) * 1985-07-24 1987-01-28 Deutsche Babcock Werke Aktiengesellschaft Procédé et brûleur pour la combustion de combustible liquide
EP0242329A2 (fr) 1986-04-15 1987-10-21 Ciba-Geigy Ag Anticörps monoclonaux contre protéine humaine induite par l'interféron sous forme purifiée, et trousses d'essai contenant ces anticorps

Also Published As

Publication number Publication date
DE3163283D1 (en) 1984-05-30
US4437314A (en) 1984-03-20
EP0043908B1 (fr) 1984-04-25
DE3026832A1 (de) 1982-02-11

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