[go: up one dir, main page]

EP1340940A1 - Buse d'atomisation pour un brûleur, en particulier pour un apparail de chauffage dans une voiture - Google Patents

Buse d'atomisation pour un brûleur, en particulier pour un apparail de chauffage dans une voiture Download PDF

Info

Publication number
EP1340940A1
EP1340940A1 EP02025977A EP02025977A EP1340940A1 EP 1340940 A1 EP1340940 A1 EP 1340940A1 EP 02025977 A EP02025977 A EP 02025977A EP 02025977 A EP02025977 A EP 02025977A EP 1340940 A1 EP1340940 A1 EP 1340940A1
Authority
EP
European Patent Office
Prior art keywords
flow guide
flow
guide element
fuel supply
fuel
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.)
Withdrawn
Application number
EP02025977A
Other languages
German (de)
English (en)
Inventor
Günter Eberspach
Walter Blaschke
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher GmbH and Co KG
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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP1340940A1 publication Critical patent/EP1340940A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • 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

Definitions

  • the present invention relates to an atomizer nozzle for a burner, in particular for a heater used on a vehicle, comprising a first flow guide element providing a flow guide surface, that in an axial end region with respect to a nozzle center axis has an atomizer lip, one together with the first Flow guide element a first leading to the atomizer lip Second flow guiding element delimiting the flow space area and a fuel supply arrangement in the second flow guide element for applying fuel through the first flow area through onto the flow guide surface of the first flow guide element.
  • EP 0 910 776 B1 describes a burner that can be used in gas turbines known.
  • fuel is injected through an injector a flow guide surface ending in an atomizer lip Flow guide element injected.
  • the fuel is from a surface of the Atomizer nozzle emitted, which essentially to a nozzle center axis has parallel surface normal.
  • the also partially radially directed Fuel flow must be delivered at high pressure to ensure that it is not carried away by the air flow, before hitting the flow guide surface of the flow guide member arrives.
  • a Atomizer nozzle for a burner in particular for a vehicle used heater, comprising a a flow guide surface providing first flow guide element, which in an axial End area has an atomizer lip with respect to a nozzle center axis, one together with the first flow guiding element Atomizing lip guiding the first flow space area second flow guide element and a fuel supply arrangement in the second flow guide element for applying fuel through the first flow chamber area onto the flow guide surface of the first flow guiding element.
  • the fuel supply arrangement at least one fuel supply channel section in the has a second flow guide element, which fuel supply channel section to a surface area of the second flow guide element is open, the non-zero surface normal radial component having.
  • the second flow guide element downstream of the opening area of the at least one fuel supply channel section tapering with respect to the nozzle center axis is trained.
  • the second flow guide element downstream of the opening area of the at least one fuel supply channel section widening with respect to the nozzle center axis is trained.
  • the expanding configuration of the second flow guide element can then be used on the second Flow guide element downstream of the opening area of the at least one fuel supply channel portion a fuel delivery lip provided.
  • the one emerging from the fuel supply channel section So fuel moves along the radially widening Surface of the second flow guide element and comes under Carrying out a preliminary distribution in the circumferential direction to the fuel delivery lip, from which it then continues radially outward to the flow guide surface of the first flow guide element is moved.
  • At least one deflection element is provided in order to generate a swirl flow in the first Flow space area.
  • the first Flow guide element together with a third flow guide element delimits a second flow area.
  • the present invention relates to a heater with an atomizing nozzle according to the invention.
  • a fuel supply system can then be provided for supplying Fuel to the at least one fuel supply channel section a pressure of up to 2.0 bar, preferably up to 1.5 bar, above which in pressure prevailing in the first flow space region.
  • FIG. 1 Before in the following with reference to FIGS. 2 and 3, the construction atomizer nozzles according to the invention is described in detail first described an overall system with reference to FIG. 1, in which a generally designated 10 heating burner, the one according to the invention Atomizer nozzle 12 is provided.
  • the heating burner 10 is in an expanded section 14 of an exhaust gas routing system 16 in one Motor vehicle arranged.
  • the one supplied via a fuel line 18 Fuel is atomized in the atomizer nozzle 12 and together with the combustion air also supplied via the atomizer nozzle 12 in one Combustion chamber 20 burned.
  • an ignition element 22 for example one Glow plug, this combustion is triggered.
  • the heater 10 from the upstream and then the radially outward flow Combustion exhaust gases flow through from an internal combustion engine cone-shaped perforated plate 24 and are thereby by the Combustion chamber 20 leaving heated combustion gases from the heating burner 10 heated so that it is further downstream for regeneration of a particle filter.
  • the heating burner 10 also has the atomizer nozzle 12 provided therein also in other system areas, such as. an auxiliary heater, an auxiliary heater or a so-called Kat heater can be used to preheat a catalyst.
  • the structure of the atomizing nozzle 12 is still with reference to FIG. 1 executed that this radially from the outside via an air supply area 26 Air is supplied, which is then in an annular space 28 on two Flow space areas 30, 32 is distributed.
  • the two flow space areas 30, 32 are through a first flow guiding element 34 separated from each other. Together with one that can also be considered as a floor part second flow guide element 36 delimits the first flow guide element 34 the first flow space region 30, while the first flow guide element 34 together with a third Flow guiding element 38 the second flow space region 32 limited.
  • the detailed structure of this atomizing nozzle 12 is first further described with reference to FIG. 2.
  • the first flow guide element 34 can be seen in detail in FIG. 2, the respective flow guide surfaces 40 on both sides, 42 provides.
  • the radially inner flow guide surface 40 delimits together with a flow guide surface 44 of the second flow guide element 36 the first flow space region 30.
  • the radially outer flow guide surface 42 bounded by a flow guide surface 46 of the third flow guide element 38 the second flow space area 32.
  • the two flow guide surfaces 40, 42 of the first flow guide element 34 which with respect to a nozzle center axis A essentially rotationally symmetrical trained and tapered asymptotically, end in an approximately cylindrical end portion thereof in an atomizer lip 48.
  • blade-like deflection elements 50, 52 are provided between the components delimiting these two flow space regions 30, 32, which ensure that the air flow entering radially inward from the annular space 28 receives a circumferential flow direction component, so that an inner swirl current S i and an outer swirl current S a form.
  • a fuel supply assembly generally designated 54, includes starting from a central line 56 several leading radially outwards Fuel supply channel sections 58. These are in respective opening areas 60 to the flow guide surface 44 of the second flow guide element 36 open. In the areas where the opening areas 60 lie, the flow guide surface 44 has such Orientation on that the surface normal F is a non-zero Have radial component, i.e. is not directed purely axially. you further recognizes that the fuel supply channel sections 58 at least have an extension direction near their opening areas 60, which is approximately parallel to the surface normal F. Downstream of the Opening areas 60 is the second flow guide element 36 its flow guide surface 44 is still tapered.
  • the entire combustion air is preferably supplied in the form of the two swirl currents S i and S a .
  • FIG. 3 A modified embodiment of the atomizing nozzle according to the invention 12 is shown in FIG. 3. Components that already exist correspond to the described components in terms of structure and function, are identified by the same reference numerals.
  • the second flow guiding element 36 is included here an end piece 64 is formed which a further section 44 ' Flow guide surface of the second flow guide element 36 provides.
  • This end piece 64 can, for example, be a separate component can be provided, however, with the section also recognizable in FIG. 1 of the second flow guide element 36 is integrally formed his. It can be seen that in the transition area between the two flow guide surfaces 44, 44 'a radial jump or transition is available. While the flow guide surface 44 in the flow direction tapering towards the nozzle center axis A. is formed, the flow guide surface 44 'begins there step-like transition area with a small radius expanding radially.
  • the flow guide surface 44 ends at one with the reference symbol 66 designated fuel delivery lip, due to the approximately rotationally symmetrical configuration of the end piece 64 approximately has a ring-like contour. This takes in the direction downstream the curvature of the flow guide surface 44 ', so that in the area of the discharge lip 66 the flow guide surface 44 ' an essentially axially directed and in the representation of FIG on the left, ie in the direction of the surface normal directed away from the atomizing nozzle 48 having.
  • the fuel feed channel sections 58 are again formed, the opening areas 60 of which now lie on the flow guide surface 44 '.
  • non-zero radial extension components of the surface normal can be seen in those areas of the flow guidance surface 44 'in which the opening areas 60 are formed.
  • the surface normals F Due to the widening shape of the flow guiding surface 44 ′, the surface normals F here are essentially opposite to the inner swirl flow S i when the circumferential flow component of this swirl flow is neglected.
  • the fuel emerging from the fuel supply channel sections 48 is entrained by the internal swirl flow S i , a back pressure being generated here in particular due to the widening shape of the flow guide surface 44 ′ that the fuel is reliably conveyed in the direction of the fuel discharge lip 66.
  • the fuel is already distributed in the circumferential direction, so that an approximately uniform fuel particle flow is directed radially outward from the fuel delivery lip 66 onto the flow guide surface 40 of the first flow guide element 34.
  • the circumferential flow component of the inner swirl flow S i again makes a significant contribution here.
  • both of the embodiments described above have the Advantage on that even when the fuel supply is comparatively low Pressure a reliable delivery to the outside can be done.
  • Essential for this is that the fuel already has a certain radial flow direction component what is released to the outside the centrifugal forces introduced by means of the swirl flow is supported.
  • the fuel supply channel sections 58 in a groove-like recessed area of the second flow guide element 36 or flow guide surfaces 44, 44 ' flow into the same.
  • This groove-like depression can be in the circumferential direction be circumferential, so that a pre-distribution is already in this groove-like depression of the fuel can take place in the circumferential direction.

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)
EP02025977A 2002-02-21 2002-11-21 Buse d'atomisation pour un brûleur, en particulier pour un apparail de chauffage dans une voiture Withdrawn EP1340940A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10207311 2002-02-21
DE10207311A DE10207311B4 (de) 2002-02-21 2002-02-21 Zerstäuberdüse für einen Brenner, insbesondere für ein an einem Fahrzeug einsetzbares Heizgerät

Publications (1)

Publication Number Publication Date
EP1340940A1 true EP1340940A1 (fr) 2003-09-03

Family

ID=27674811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02025977A Withdrawn EP1340940A1 (fr) 2002-02-21 2002-11-21 Buse d'atomisation pour un brûleur, en particulier pour un apparail de chauffage dans une voiture

Country Status (4)

Country Link
US (1) US6764302B2 (fr)
EP (1) EP1340940A1 (fr)
DE (1) DE10207311B4 (fr)
PL (1) PL358830A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1584872A3 (fr) * 2004-04-07 2008-11-12 United Technologies Corporation Vrille
WO2023242028A1 (fr) * 2022-06-13 2023-12-21 Mercedes-Benz Group AG Brûleur pour véhicule automobile et véhicule automobile comportant au moins un tel brûleur

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10205573B4 (de) * 2002-02-11 2005-10-06 J. Eberspächer GmbH & Co. KG Zerstäuberdüse für einen Brenner
JP3634325B2 (ja) * 2002-05-30 2005-03-30 住重機器システム株式会社 超音速ジェットバーナー
DE102004002246A1 (de) * 2004-01-15 2005-08-11 J. Eberspächer GmbH & Co. KG Vorrichtung zur Erzeugung eines Luft/Kohlenwasserstoff-Gemischs
DE102004055326B3 (de) * 2004-11-16 2006-03-16 Webasto Ag Verfahren und Vorrichtung zur Erzeugung eines feinverteilten Kraftstoffnebels
US20070158466A1 (en) * 2005-12-29 2007-07-12 Harmon Michael P Nozzle assembly
EP2004981A4 (fr) * 2006-03-21 2012-02-01 Michael Patrick Dixon Système de vaporisation de liquides ou de gaz liquéfiés
US9423137B2 (en) * 2011-12-29 2016-08-23 Rolls-Royce Corporation Fuel injector with first and second converging fuel-air passages
EP3436752B1 (fr) 2016-03-30 2021-06-30 Marine Canada Acquisition Inc. Appareil de chauffage de véhicule et commandes associées
FR3057648B1 (fr) * 2016-10-18 2021-06-11 Safran Helicopter Engines Systeme d'injection pauvre de chambre de combustion de turbomachine
DE102016222097A1 (de) * 2016-11-10 2018-05-17 Rolls-Royce Deutschland Ltd & Co Kg Treibstoffdüse einer Gasturbine mit Drallerzeuger

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703259A (en) * 1971-05-03 1972-11-21 Gen Electric Air blast fuel atomizer
EP0660038A2 (fr) * 1993-12-23 1995-06-28 ROLLS-ROYCE plc Dispositif d'injection de carburant
JPH07332671A (ja) * 1994-06-10 1995-12-22 Sekiyu Sangyo Kasseika Center 予蒸発予混合燃焼器
EP0933593A2 (fr) * 1998-01-31 1999-08-04 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Brûleur à deux combustibles
EP0910776B1 (fr) 1996-07-10 2001-08-22 MTU Aero Engines GmbH Bruleur dote d'une buse de pulverisation
US20010023590A1 (en) * 1997-09-10 2001-09-27 Shigemi Mandai Three-dimensional swirler in a gas turbine combustor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4699587A (en) * 1985-05-23 1987-10-13 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Burner
US4653278A (en) * 1985-08-23 1987-03-31 General Electric Company Gas turbine engine carburetor
GB2219070B (en) * 1988-05-27 1992-03-25 Rolls Royce Plc Fuel injector
EP0419198B1 (fr) * 1989-09-20 1996-04-17 Nippon Oil Co. Ltd. Brûleur pour la combustion de combustible liquide
DE19645180A1 (de) * 1996-11-02 1998-05-07 Eberspaecher J Gmbh & Co Druckzerstäuberbrenner für ein motorunabhängiges Fahrzeugheizgerät

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703259A (en) * 1971-05-03 1972-11-21 Gen Electric Air blast fuel atomizer
EP0660038A2 (fr) * 1993-12-23 1995-06-28 ROLLS-ROYCE plc Dispositif d'injection de carburant
JPH07332671A (ja) * 1994-06-10 1995-12-22 Sekiyu Sangyo Kasseika Center 予蒸発予混合燃焼器
EP0910776B1 (fr) 1996-07-10 2001-08-22 MTU Aero Engines GmbH Bruleur dote d'une buse de pulverisation
US20010023590A1 (en) * 1997-09-10 2001-09-27 Shigemi Mandai Three-dimensional swirler in a gas turbine combustor
EP0933593A2 (fr) * 1998-01-31 1999-08-04 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Brûleur à deux combustibles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 04 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1584872A3 (fr) * 2004-04-07 2008-11-12 United Technologies Corporation Vrille
WO2023242028A1 (fr) * 2022-06-13 2023-12-21 Mercedes-Benz Group AG Brûleur pour véhicule automobile et véhicule automobile comportant au moins un tel brûleur

Also Published As

Publication number Publication date
PL358830A1 (en) 2003-08-25
DE10207311B4 (de) 2005-06-09
US6764302B2 (en) 2004-07-20
US20030155435A1 (en) 2003-08-21
DE10207311A1 (de) 2003-09-18

Similar Documents

Publication Publication Date Title
DE69410424T2 (de) Brennstoff-Einspritzvorrichtung
DE2641685C2 (fr)
EP0902233B1 (fr) Buse de pulvérisation par pression combinée
EP1305551B1 (fr) Bruleur a pulverisation
EP0841517B1 (fr) Dispositif d'injection du combustible pour une chambre de combustion d'une turbine à gaz avec une buse d'injection refroidie par un liquide
DE3916413A1 (de) Brennstoffinjektor
EP1802915B1 (fr) Bruleur pour turbine a gaz
DE10207311B4 (de) Zerstäuberdüse für einen Brenner, insbesondere für ein an einem Fahrzeug einsetzbares Heizgerät
DE2443007A1 (de) Brennstoffinjektionsvorrichtung
DE2143012A1 (de) Brennersysteme
EP1213541B1 (fr) Brûleur à prémélange avec combustion catalytique et procédé de fonctionnement
EP0770175A1 (fr) Dispositif d'injection de carburant destine a un moteur a combustion interne
DE10205573B4 (de) Zerstäuberdüse für einen Brenner
DE19627760C2 (de) Brenner mit Zerstäuberdüse
EP0762057B1 (fr) Dispositif de mélange de carburant et de l'air pour un combusteur de turbine à gaz
EP2385306A2 (fr) Brûleur de prémélange maigre d'un moteur à turbine à gaz doté d'un élément de guidage d'écoulement
DE2949096A1 (de) Gemischbildner fuer brennkraftmaschinen
DE2552864C2 (de) Brenner für flüssige Brennstoffe
DE2641605C2 (de) Vorrichtung zur Zufuhr von Luft und Brennstoff
DE3943096A1 (de) Verfahren und vorrichtung zum feinen zerstaeuben eines fluessigen brennstoffs und mit dieser vorrichtung versehener brenner
WO1991013291A1 (fr) Bruleur a reinjection de gaz combustible pour combustibles coulants
EP0180607B1 (fr) Procede de combustion avec controle de ionisation
DE3442148A1 (de) Zerstaeuberduese mit aufgesetzter verteilerkappe zur reduzierung der stickoxid-emission bei der verbrennung von fluessigen brennstoffen
WO2003076846A1 (fr) Bruleur destine notamment a des combustibles liquides ou gazeux
DE854289C (de) Brennkammer fuer Gasturbinen

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: A1

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

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040303

AKX Designation fees paid

Designated state(s): AT CZ DE FR GB SE

17Q First examination report despatched

Effective date: 20070427

GRAC Information related to communication of intention to grant a patent modified

Free format text: ORIGINAL CODE: EPIDOSCIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20120306