US2746802A - Atomizer for liquids - Google Patents

Atomizer for liquids Download PDF

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Publication number
US2746802A
US2746802A US277811A US27781152A US2746802A US 2746802 A US2746802 A US 2746802A US 277811 A US277811 A US 277811A US 27781152 A US27781152 A US 27781152A US 2746802 A US2746802 A US 2746802A
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US
United States
Prior art keywords
duct
liquid
atomizer
air
hollow
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
US277811A
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English (en)
Inventor
Feis Nikolaas
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.)
Instituut Voor Tuinbouwtechniek
Original Assignee
Instituut Voor Tuinbouwtechniek
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 Instituut Voor Tuinbouwtechniek filed Critical Instituut Voor Tuinbouwtechniek
Application granted granted Critical
Publication of US2746802A publication Critical patent/US2746802A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/065—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet an inner gas outlet being surrounded by an annular adjacent liquid outlet
    • 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
    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/39—Liquid feeding nozzles

Definitions

  • the invention relates to an atomizer for liquids of the type wherein the liquid is introduced into a high velocity air current flowing through an air duct by means of a conical body diverging in the direction of the air current.
  • the liquid to be atomized is led to the surface of the cone; the air stream flowing along this surface spreads the liquid over it in the form of a film and tears it away from the edge of the cone in the form of extremely fine droplets.
  • Such an atomizer however, has the disadvantage that a vortex is created in the air stream immediately behind the cone so that a fraction of the atomized liquid flows together into coarser droplets.
  • liquid is used it is intended to refer not only to homogeneous liquids but also to emulsions and suspensions.
  • Another object of the invention is to provide an open cone frustum having a knife-edge rear end so as to avoid the formation of coarser droplets at said end of the cone.
  • Another object of the invention is to form the upstream part of the cone frustuin as an inverted cone so as to increase the quantity of air flowing through the cone.
  • Yet another object of the invention is to shape the double cone as a Venturi.
  • a further object of the invention is to provide an atomizer of the type set out above wherein the position of the cone in the air duct can be varied in axial direction.
  • FIG. 1 shows in longitudinal section a first embodiment of the atomizer according to the invention
  • Fig. 2 shows in longitudinal section another embodiment of the atomizer
  • Fig. 3 represents in longitudinal section a third embodiment of the atomizer
  • Fig. 4 is a cross-section of the liquid duct of the atomizer of Fig. 1.
  • the reference numeral 1 shows an air duct provided with a conical mouth piece 2.
  • a Venturi-shaped double cone frustum 4, 6 is located within said mouth piece.
  • the liquid to be atomized is fed through the duct 7 to an annular chamber provided around the constriction of the Venturi and constituted by a tubular member 9 whose upstream end is fastened to the conical part 6 of the Venturi.
  • the liquid fed to this chamber emerges therefrom through the annular aperture 10 at its downstream end, flows under the impulsion of the air stream over the external surface of cone 4 towards its downstream end provided with a sharp edge 5 and is ice torn away from said edge by the air stream as extremely fine droplets.
  • the downstream end of the cone 4 can be located with advantage substantially in the plane of the aperture 3 of the air duct. Air flowing through cones 6,4 prevents the formation of vertexes behind the edge 5 so that the atomized liquid will be carried away without formation of coarser droplets.
  • the air duct 13 is provided with a Venturi-shaped end piece 33.
  • a Venturi-shaped body 16 is located within the air duct with its downstream end 20 preferably in the constriction 21 of the Venturi-shaped end piece.
  • the liquid to be atom ized is fed through the ducts 15 to an annular chamber provided around the body 16 and constituted by the tubular member 18 fastened at both ends to the external surface of the body 16.
  • the liquid duct or ducts are given a sloping position with respect to the axis as shown in the drawing.
  • the liquid ducts 15 are not fastened to the air duct 13 but are carried by an annular member 11 slidable on the air duct.
  • Longitudinal slots 1 provided in the air duct 13 allow an axial displacement of the member 16, the ducts 15 and the annular part 11. Air leakage through slots 14 is prevented by the annular part 11 covering the slots even in the extreme positions of said part.
  • the degree of atomization depends on the velocity of the air stream adjacent the edge 29 of the cone and can therefore be varied by changing the position of member Maximum fineness is achieved when the edge 26 is positioned in the plane of constriction 21 of the Venturi. Air. flowing through member 16, prevents the formation of vorteXes behind the edge 20 so that the atomized liquid will be carried away without formation of coarser droplets.
  • the air duct 24 is provided at its end with a constriction 2! and carries a Venturi-shaped body 32.
  • Reference numerals 31 and 30 show parts corresponding with those shown by the reference numerals 9 and it) in Fig. l.
  • the liquid duct 26 carrying the Veuturishaped body 32 is provided with a guiding piece 22 slidably associated with a support 25 fastened to the air duct 24.
  • a set screw 23 allows to fix the body 32 in the desired position.
  • the sharp downstream edge 28 has to be positioned in the plane of the orifice 27. The formation of vertexes behind the body 32 is prevented by air flow through said body.
  • An atomizer for liquids comprising a duct for guiding therethrough a stream of a gaseous fluid in unidirectional flow, a hollow liquid dispersing member dis posed within said fluid duct in axial alignment therewith and open at both ends for causing a fluid flow along the inner and outer wall of said hollow member, the said member having inner and outer wall surfaces both outwardly tapered in the direction of the fluid flow, and liquid conduit means for feeding liquid to be dispersed to the outer wall of said hollow member.
  • an atomizer according to claim 1 wherein the said hollow open ended member comprises a portion in form of a frusto-conical body inverted in the direction of the fluid flow.
  • An atomizer for liquids comprising a duct including a constricted portion for guiding therethrough a stream of a gaseous fluid in uni-directional flow, a hollow liquid dispersing member disposed within said fluid duct in axial alignment therewith and open at both ends for causing a fluid flow along the inner and outer wall of said hollow member, the said member having inner and outer wall surfaces both outwardly tapered in the direction of the fluid flow, a sleeve member encompassing the outer wall of said hollow member so as to form an annular chamber with said wall, the said sleeve member having at least one discharge orifice, and liquid conduit means for liquid to be dispersed communicating with said chamber.
  • An atomizer for liquids comprising a duct including a constricted portion for guiding therethrough a stream of a gaseous fluid in uni-directional flow, a hollow liquid dispersing member disposed within said fluid duct in axial alignment therewith and open at both ends for causing a fluid flow along the inner and outer wall of said hollow member, the said member having inner and outer wall surfaces both outwardly tapered in the direction of the fluid flow, a sleeve member encompassing the outer wall of said hollow member so as to form an annular chamber with said wall, the downstream end of said sleeve member being circumferentially spaced from the juxtaposed outer wall portion of the hollow member for forming an annular discharge orifice from said annular chamber, and liquid conduit means for liquid to be dispersed communicating with said chamber.
  • An atomizer for liquids comprising a duct for guiding therethrough a stream of a gaseous fluid in unidirectional flow, a hollow liquid dispersing member disposed within said fluid duct in axial alignment therewith and open at both ends for causing a fluid flow along the inner and outer wall of said hollow member, the said member having inner and outer wall surfaces both outwardly tapered in the direction of the fluid flow, adjustable supa port means supporting said hollow member for axial adjustment thereof relative to said duct, and liquid conduit means for feeding liquid to be dispersed to the outer wall of said hollow member.
  • liquid conduit means include at least one liquid duct disposed at an angle relative to the axial direction of said liquid duct.
  • liquid conduit means include within the fluid duct a duct portion streamlined in the direction of the fluid flow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
US277811A 1951-03-22 1952-03-21 Atomizer for liquids Expired - Lifetime US2746802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL160045A NL81050C (enrdf_load_stackoverflow) 1951-03-22 1951-03-22

Publications (1)

Publication Number Publication Date
US2746802A true US2746802A (en) 1956-05-22

Family

ID=19875541

Family Applications (1)

Application Number Title Priority Date Filing Date
US277811A Expired - Lifetime US2746802A (en) 1951-03-22 1952-03-21 Atomizer for liquids

Country Status (3)

Country Link
US (1) US2746802A (enrdf_load_stackoverflow)
GB (1) GB710459A (enrdf_load_stackoverflow)
NL (1) NL81050C (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952987A (en) * 1956-10-09 1960-09-20 Texaco Inc Apparatus for the maintenance of liquefied petroleum products and method of manufacture thereof
DE1269065B (de) * 1962-06-20 1968-05-22 Joseph Robert Besser Spritzpistole
FR2457130A1 (fr) * 1979-05-21 1980-12-19 Fortschritt Veb K Procede et dispositif pour la dispersion d'aerosols
US4483805A (en) * 1982-06-09 1984-11-20 Adl-Innovation Kb Process for injection of fluid, e.g. slurry in e.g. flue gases and a nozzle device for the accomplishment of the process
US4730784A (en) * 1986-02-25 1988-03-15 Arbed S.A. Oxygen blast nozzle
EP0596380A1 (de) * 1992-10-31 1994-05-11 Hoechst Aktiengesellschaft Vorrichtung zum Befestigen und Versorgen von Düsen
US5341991A (en) * 1987-09-07 1994-08-30 Mitab Montage & Industriteknik Ab Method and apparatus for atomizing liquids
FR2703264A1 (fr) * 1993-03-30 1994-10-07 York France Sa Buse de pulvérisation et dispositif de pulvérisation d'un mélange d'eau et d'air utilisant ladite buse.
FR2721536A1 (fr) * 1994-06-22 1995-12-29 Tecnoma Procédé et dispositif de pulvérisation de liquide.
US6189346B1 (en) 1997-07-25 2001-02-20 Whirlpool Corporation Clothes treating apparatus
US6227185B1 (en) * 1999-03-01 2001-05-08 Edward J. Spracher Air intake conduit fuel metering device
US20070194146A1 (en) * 2005-08-24 2007-08-23 Advanced Specialized Technologies, Inc. A liquid atomizing nozzle
US20180180279A1 (en) * 2014-06-03 2018-06-28 Siemens Aktiengesellschaft Pumpless Metal Atomization And Combustion Using Vacuum Generation And Suitable Material Flow Control

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022013A (en) * 1960-05-18 1962-02-20 Kiekens Wervelwind Holland Kie Device for atomizing liquids
DK101148C (da) * 1961-12-06 1965-03-01 Landbruksteknisk Inst Sprøjtehoved til udblæsning af en væske i findelt form til beskyttelse af vækster mod svampesygdomme, insekter og ukrudt.
US6328226B1 (en) * 1999-12-22 2001-12-11 Visteon Global Technologies, Inc. Nozzle assembly

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US248579A (en) * 1881-10-25 Atomizer for coloring pictures
US1123955A (en) * 1914-01-08 1915-01-05 Percival S Tice Carbureter.
US1157146A (en) * 1915-02-01 1915-10-19 Leon Noel Maurier Pressure-carbureter.
US1199747A (en) * 1914-11-16 1916-09-26 Arthur D Benham Carbureter.
US1660557A (en) * 1927-04-11 1928-02-28 Marquette Mfg Co Nozzle
US1839527A (en) * 1928-06-07 1932-01-05 Albert H Bates Hydrocarbon burner
US1974538A (en) * 1934-05-05 1934-09-25 Harry D Johnston Spray nozzle
US2404081A (en) * 1938-11-30 1946-07-16 Bendix Aviat Corp Charge forming device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US248579A (en) * 1881-10-25 Atomizer for coloring pictures
US1123955A (en) * 1914-01-08 1915-01-05 Percival S Tice Carbureter.
US1199747A (en) * 1914-11-16 1916-09-26 Arthur D Benham Carbureter.
US1157146A (en) * 1915-02-01 1915-10-19 Leon Noel Maurier Pressure-carbureter.
US1660557A (en) * 1927-04-11 1928-02-28 Marquette Mfg Co Nozzle
US1839527A (en) * 1928-06-07 1932-01-05 Albert H Bates Hydrocarbon burner
US1974538A (en) * 1934-05-05 1934-09-25 Harry D Johnston Spray nozzle
US2404081A (en) * 1938-11-30 1946-07-16 Bendix Aviat Corp Charge forming device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952987A (en) * 1956-10-09 1960-09-20 Texaco Inc Apparatus for the maintenance of liquefied petroleum products and method of manufacture thereof
DE1269065B (de) * 1962-06-20 1968-05-22 Joseph Robert Besser Spritzpistole
FR2457130A1 (fr) * 1979-05-21 1980-12-19 Fortschritt Veb K Procede et dispositif pour la dispersion d'aerosols
US4483805A (en) * 1982-06-09 1984-11-20 Adl-Innovation Kb Process for injection of fluid, e.g. slurry in e.g. flue gases and a nozzle device for the accomplishment of the process
US4730784A (en) * 1986-02-25 1988-03-15 Arbed S.A. Oxygen blast nozzle
US5341991A (en) * 1987-09-07 1994-08-30 Mitab Montage & Industriteknik Ab Method and apparatus for atomizing liquids
EP0596380A1 (de) * 1992-10-31 1994-05-11 Hoechst Aktiengesellschaft Vorrichtung zum Befestigen und Versorgen von Düsen
FR2703264A1 (fr) * 1993-03-30 1994-10-07 York France Sa Buse de pulvérisation et dispositif de pulvérisation d'un mélange d'eau et d'air utilisant ladite buse.
FR2721536A1 (fr) * 1994-06-22 1995-12-29 Tecnoma Procédé et dispositif de pulvérisation de liquide.
US6189346B1 (en) 1997-07-25 2001-02-20 Whirlpool Corporation Clothes treating apparatus
US6227185B1 (en) * 1999-03-01 2001-05-08 Edward J. Spracher Air intake conduit fuel metering device
US20070194146A1 (en) * 2005-08-24 2007-08-23 Advanced Specialized Technologies, Inc. A liquid atomizing nozzle
US20180180279A1 (en) * 2014-06-03 2018-06-28 Siemens Aktiengesellschaft Pumpless Metal Atomization And Combustion Using Vacuum Generation And Suitable Material Flow Control

Also Published As

Publication number Publication date
GB710459A (en) 1954-06-09
NL81050C (enrdf_load_stackoverflow) 1956-04-16

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