EP0227715B1 - Atomisierungsvorrichtung - Google Patents

Atomisierungsvorrichtung Download PDF

Info

Publication number
EP0227715B1
EP0227715B1 EP86903285A EP86903285A EP0227715B1 EP 0227715 B1 EP0227715 B1 EP 0227715B1 EP 86903285 A EP86903285 A EP 86903285A EP 86903285 A EP86903285 A EP 86903285A EP 0227715 B1 EP0227715 B1 EP 0227715B1
Authority
EP
European Patent Office
Prior art keywords
aperture
fluid
side wall
wingshaped
atomizer
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.)
Expired - Lifetime
Application number
EP86903285A
Other languages
English (en)
French (fr)
Other versions
EP0227715A1 (de
Inventor
Henrik Holm Jensen
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.)
DANFOIL A/S
Original Assignee
DANFOIL AS
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 DANFOIL AS filed Critical DANFOIL AS
Priority to AT86903285T priority Critical patent/ATE87232T1/de
Publication of EP0227715A1 publication Critical patent/EP0227715A1/de
Application granted granted Critical
Publication of EP0227715B1 publication Critical patent/EP0227715B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0075—Nozzle arrangements in gas streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit

Definitions

  • the present invention relates to an atomizer comprising an injector member located in a flow channel for atomizing a first fluid into a second fluid flowing through this channel, the injector member having the shape of an airfoil wing member, whereby the leading edge of the wing member is arranged upstream relative to the intended direction of flow of the second fluid, and whereby the said airfoil wing member comprises a through aperture leading from the upper surface to the lower surface, at least one through channel leading laterally from an opening in a side wall of the aperture for connection to a supply channel or to a tube for the supply of the first fluid to the injector member, and whereby at least one of said upper and lower surfaces has an area adjacent the downstream side of the said through aperture which tapers in the direction towards the downstream side of the through aperture to provide the airfoil wing member with a reduced thickness.
  • the wingshaped member i.e. the airfoil wing member
  • the airfoil wing member is positioned within the second fluid stream such that this fluid flows against the leading edge of the wingshaped member and from thereon passes along both upper and lower surfaces thereof, the wingshaped member being positioned transversely and parallel to the direction of flow.
  • the mixture leaves the wingshaped member at the trailing edge thereof.
  • This thinner trailing edge may have a sharpened configuration.
  • the wingshaped member extend transversely of the direction of flow from side to side over the full cross sectional width of the channel and is kept in place through pins in the channel side walls.
  • These pins may be tube-shaped and connect to channels in the wing shaped member, these channels leading to the through aperture in the wing shaped member and supplying first fluid into said through aperture, from which aperture the first fluid is spread into the second fluid, particularly along the sides of the wingshaped member.
  • the lateral side walls connecting the upstream wall and the downstream edge of the through aperture are shorter than these two aperture boundaries.
  • the lateral wall with largest extent along the circumference of the through aperture in general is the side wall which does not comprise the supply opening for the first fluid.
  • the atomization may be further improved.
  • an atomization may be achieved which is adaptable to possible uneven flows of the second fluid at the upper and lower surfaces of the wingshaped means, whereby the features according to claim 7 provide a symmetrical flow at these two surfaces of the wingshaped means, whereas the features according to claim 8 provide uneven flow conditions of the first fluid along the upper and lower surfaces transversely to the flow of the second fluid.
  • the figures 2, 4 and 6 respectively show the cross sections II-II, IV-IV and VI-VI according to the respective figures 1, 3 and 5.
  • a wingshaped means for an atomizer according to the invention carries reference numeral 1.
  • the upper flat surface of the wingshaped means is referred to with 11, respectively by 11A, whereas the lower flat surface is referred to with 12, respectively with 12A.
  • 11A and 12A designate depressed surface areas within the wingshaped means and which areas in direction towards a through aperture 4 running from 11, 11A to side 12, 12A are tapering into a sharpened or rounded off downstream side or edge 9 facing the through aperture 4.
  • the wingshaped means 1 terminates in an edge 19 whereas anteriorly the wingshaped means terminates in a curved or sharpened edge 18.
  • Opposite to the sharpened or rounded off edge 9 of the aperture 4 has a side wall 8.
  • Lateral walls 6 and 7 connect as side walls the two walls 9 and 8 of the aperture 4.
  • a channel 10 is running which opens into the lateral wall 6 of the aperture 4.
  • a stud 10A is connectable to a first fluid supply. The first fluid flowing through the side wall opening in the later wall 6 the through aperture 4 and mixes with a second fluid which flows along the wingshaped means 1.
  • the wingshaped means 1 can by means of the stud 10A and of a pin 5 positioned opposite to the stud 10A be held to the side walls of fluid channel not shown in the drawing, in which channel the second fluid is flowing around the wingshaped means 1 in direction from left to right, i.e. in direction from edge 18 to edge 19.
  • the first fluid flows out to both sides from the through aperture 4, and in case the second fluid is gaseous or is a vapor an atomization of the first fluid into the second fluid takes place. This is due to the striking of fluid against the edges of the aperture 4, but is also due to the formation of whirls within this range.
  • the rear edge 19 is oblique and the edge 19 and is parallel to the edge 9 a better atomizing is attained.
  • the side walls 11, 11A, 12 and 12A may comprise grooves or furrows mainly running to the right hand side in the drawing or diverging to the right in the drawing from the area around the through aperture 4. In many cases the atomizing is hereby improved.
  • the wingshaped means 1 may have a through aperture 4 with curved side walls and a similar outer contour as illustrated in figure 5.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nozzles (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Valve Device For Special Equipments (AREA)
  • Gyroscopes (AREA)

Claims (9)

  1. Zerstäuber mit einem in einem Strömungskanal angeordneten Injektionsorgan zum Zerstäuben einer ersten Flüssigkeit in eine durch diesen Kanal strömende zweite Flüssigkeit, wobei das Injektionsorgan die Gestalt eines Stromlinienflügels aufweist, dessen Vorderkante relativ zu der vorgesehenen Strömungsrichtung der zweiten Flüssigkeit stromaufwärts angeordnet ist, welcher Stromlinienflügel (1) eine von der oberen Fläche (11) zu der unteren Fläche (12) führende Durchgangsöffnung (4) enthält sowie mindestens einen Durchgangskanal (10), der seitlich von einem Durchbruch in einer Seitenwand der Durchgangsöffnung führt, um eine Verbindung mit einem Zuführkanal oder mit einem Rohr zum Zuführen der ersten Flüssigkeit zu dem Injektionsorgan herzustellen, wobei mindestens eine der genannten oberen und unteren Flächen (11,12) einen Bereich (11A,12A) aufweist, der der stromabwärts gelegenen Seite (9) der genannten Durchgangsöffnung (4) benachbart ist und sich in Richtung auf die stromabwärts gelegene Seite (9) der Durchgangsöffnung verjüngt, um den Stromlinienflügel mit einer reduzierten Stärke zu versehen, dadurch gekennzeichnet, daß der oder jeder der Zuführkanäle (10) in nur eine Seitenwand der Öffnung (4) münden und daß gegenüber der Kante der stromabwärts gelegenen Seitenwand (9) der durch den sich verjüngenden Bereich bzw. die sich verjüngenden Bereiche begrenzten Öffnung (4) die Öffnung (4) einen stromaufwärts gelegenen Seitenwand (8) aufweist, wobei die stromaufwärts gelegene Wand (8) und die stromabwärts gelegene Seite (9) relativ zueinander schräg angeordnet sind.
  2. Zerstäuber nach Anspruch 1, dadurch gekennzeichnet, daß der Abstand zwischen der stromaufwärts gelegenen Wand (8) und der stromabwärts gelegenen Kante (9) von der Seitenwand (6), durch die die erste Flüssigkeit zugeführt wird, zunimmt.
  3. Zerstäuber nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Durchgangsöffnung (4) mindestens zwei seitliche Seitenwände (6,7) aufweist, die die obengenannte stromabwärts gelegene Seitenwand (9) mit der obengenannten stromaufwärts gelegenen Seitenwand (8) verbinden und ungleiche Längen in Richtung längs des Umfangs der Durchgangsöffnung (4) aufweisen.
  4. Zerstäuber nach Anspruch 3, dadurch gekennzeichnet, daß die zwei seitlichen Seitenwände (6,7), in Richtung längs des Umfangs der genannten Durchgangsöffnung (4) gesehen, relativ zueinander schräg verlaufen.
  5. Zerstäuber nach Anspruch 1, 2, 3 oder 4, dadurch gekennzeichnet, daß mindestens eine der oberen und unteren Flächen (11,11A,12,12A) von der Durchgangsöffnung (4) verlaufende Rillen oder Nuten enthält, wobei die Ausführung dadurch verbessert ist, daß diese Flächen ganz oder teilweise angerauht sind.
  6. Zerstäuber nach Anspruch 5, dadurch gekennzeichnet, daß die genannten Rillen oder Nuten divergierend im wesentlichen in Strömungsrichtung von dem Bereich der Durchgangsöffnung (4) verlaufen.
  7. Zerstäuber nach Anspruch 1, 2, 3, 4, 5 oder 6, dadurch gekennzeichnet, daß die Seitenwandflächen der Durchgangsöffnung (4), mit Ausnahme der stromabwärts gelegenen Seitenwand (9) der Durchgangsöffnung (4), im wesentlichen lotrecht zu den oberen und unteren Flächen (11,12) verlaufen.
  8. Zerstäuber nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Fläche mindestens einer der die Durchgangsöffnung (4) begrenzenden Wände (6,7,8,9), von einer der oberen oder unteren Flächen (11,12) zu der anderen Fläche (11,12) gesehen, eine vielflächige schwachgebogene Oberflächenstruktur aufweist, wie eine fein prismatisch gebogene, konvex oder konkav gebogene oder beide.
  9. Zerstäuber nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Durchgangsöffnung (4) eine vieleckige Gestalt mit mindestens vier Seiten einschließlich der stromabwärts gelegenen Seite (9) hat, wobei mindestens einige der Seiten des Vielecks gegenüber den anderen Seiten verschiedene Längen aufweisen.
EP86903285A 1985-06-24 1986-06-23 Atomisierungsvorrichtung Expired - Lifetime EP0227715B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86903285T ATE87232T1 (de) 1985-06-24 1986-06-23 Atomisierungsvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK283685A DK155175C (da) 1985-06-24 1985-06-24 Forstoever
DK2836/85 1985-06-24

Publications (2)

Publication Number Publication Date
EP0227715A1 EP0227715A1 (de) 1987-07-08
EP0227715B1 true EP0227715B1 (de) 1993-03-24

Family

ID=8116273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86903285A Expired - Lifetime EP0227715B1 (de) 1985-06-24 1986-06-23 Atomisierungsvorrichtung

Country Status (6)

Country Link
EP (1) EP0227715B1 (de)
AT (1) ATE87232T1 (de)
AU (1) AU5994086A (de)
DE (1) DE3688127T2 (de)
DK (1) DK155175C (de)
WO (1) WO1987000078A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA919256B (en) * 1990-11-23 1992-11-25 Atomaer Pty Ltd Gas particle formation
JP3156390B2 (ja) * 1992-09-28 2001-04-16 日産自動車株式会社 乗員拘束装置の制御装置
CH687832A5 (de) * 1993-04-08 1997-02-28 Asea Brown Boveri Brennstoffzufuehreinrichtung fuer Brennkammer.
DK174368B1 (da) * 1995-01-20 2003-01-13 Danfoil Production S K As Forstøver
US5680993A (en) * 1995-06-05 1997-10-28 National Research Council Of Canada Liquid atomizing device with controlled atomization and spray dispersion
DK172813B1 (da) * 1997-12-16 1999-06-17 Cris Ni Aps Forstøverplade, forstøver med en sådan forstøverplade samt anvendelse af en sådan forstøverplade

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE522350A (de) * 1952-09-23
FR2097675A5 (de) * 1970-07-17 1972-03-03 Garnier Michel
GB1580211A (en) * 1976-03-24 1980-11-26 Nat Res Dev Generation of small gas bubbles within liquid

Also Published As

Publication number Publication date
DK155175C (da) 1989-09-18
DE3688127T2 (de) 1993-10-21
DK283685D0 (da) 1985-06-24
EP0227715A1 (de) 1987-07-08
DK283685A (da) 1986-12-25
WO1987000078A1 (en) 1987-01-15
ATE87232T1 (de) 1993-04-15
DE3688127D1 (de) 1993-04-29
DK155175B (da) 1989-02-27
AU5994086A (en) 1987-01-30

Similar Documents

Publication Publication Date Title
KR900004861B1 (ko) 흐름방향제어장치
EP0227715B1 (de) Atomisierungsvorrichtung
GB2087249A (en) Method and apparatus for the mixing of at least two fluid flows
PT91855B (pt) Conjunto de agulheta de espuma e pulverizador de gatilho
JP4141006B2 (ja) 高圧清浄スプレーノズル
PL172329B1 (pl) Zespól wlotowy wentylatora odsrodkowego PL PL PL PL PL
JPH07208303A (ja) 噴射ノズル
WO1995008402A1 (en) Spraying nozzle with recessed deflector surface
EP0881378B1 (de) Abgasrückführungssystem für Brennkraftmaschine
DE60003944T2 (de) Düse zur abgabe eines gasumhüllten definierten sprühnebels
JP2865677B2 (ja) ガソリンエンジンの燃料供給装置
EP0192969B1 (de) Beschichtungsvorrichtung und Verfahren zur Verhinderung der Ablagerung von Beschichtungsmaterial auf dem Beschichtungskopf
DE2361505B2 (de) Vorrichtung zum Zuführen von Zusatzluft in den Ansaugkanal von Benzin-Brennkraftmaschinen
EP0873178B1 (de) Zerstäuber
JPH02191738A (ja) 糸をテクスチヤード加工するための渦動ノズル
JP2637597B2 (ja) ラムジェット燃焼器
JPS6261844B2 (de)
JP2506990Y2 (ja) デフロスタノズル
AU676612C (en) Spray nozzle with recessed deflector surface and mounting assembly thereof
JP2527443Y2 (ja) ウォッシャノズル
JPH01273874A (ja) 燃料供給方法
AT1295U1 (de) Brennkraftmaschine mit einer im deckenbereich des einlassströmungsweges angeordneten einspritzdüse
CH666421A5 (de) Verfahren zur verhinderung der ablagerung von beschichtungsmaterial sowie beschichtungsanordnung zu dessen ausfuehrung.
JPH06101599A (ja) インジェクタ
JPH04209967A (ja) 内燃機関の燃料供給装置

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 CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19870710

17Q First examination report despatched

Effective date: 19890320

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DANFOIL A/S

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19930324

REF Corresponds to:

Ref document number: 87232

Country of ref document: AT

Date of ref document: 19930415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3688127

Country of ref document: DE

Date of ref document: 19930429

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 86903285.4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20010618

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010620

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010626

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20010630

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20010703

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010822

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20010917

Year of fee payment: 16

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020623

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020624

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020630

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020630

BERE Be: lapsed

Owner name: *DANFOIL A/S

Effective date: 20020630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030101

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030101

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020623

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030228

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20030101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050623