CA2160095A1 - Internal mix air atomizing spray nozzle - Google Patents

Internal mix air atomizing spray nozzle

Info

Publication number
CA2160095A1
CA2160095A1 CA002160095A CA2160095A CA2160095A1 CA 2160095 A1 CA2160095 A1 CA 2160095A1 CA 002160095 A CA002160095 A CA 002160095A CA 2160095 A CA2160095 A CA 2160095A CA 2160095 A1 CA2160095 A1 CA 2160095A1
Authority
CA
Canada
Prior art keywords
liquid
expansion chamber
stage
mixture
particles
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
CA002160095A
Other languages
French (fr)
Other versions
CA2160095C (en
Inventor
David C. Huffman
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.)
Spraying Systems Co
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2160095A1 publication Critical patent/CA2160095A1/en
Application granted granted Critical
Publication of CA2160095C publication Critical patent/CA2160095C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0892—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being disposed on a circle
    • 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
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/0475—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the peripheral gas flow towards the central liquid flow

Abstract

The nozzle effects three stages of liquid atomization. The first stage is carried out by means of a single liquid orifice and an expansion chamber containing an impingement pin. A high velocity stream of liquid is discharged through the liquid orifice and is broken-up upon striking the flat end of the im-pingement pin. The second stage is produced by an air guide which reduces in area to form jets of air into a high velocity annular air curtain, the curtain passing through the liquid orifice in surrounding relation with the liquid stream and striking the broken-up flow of the first stage to atomize the particles. The mixture is then allowed to expand in the expansion chamber to reduce the tendency of the liquid particles in the atomized mixture from commingling together and reforming into larger particles. The third stage is effected by the expansion chamber and by multiple dis-charge orifices. The mixture is sprayed from the expansion chamber through the multiple orifices and, upon being discharged into the atmosphere, the parti-cles are atomized further due to the release of pres-sure formed inside the expansion chamber.
CA002160095A 1994-10-07 1995-10-06 Internal mix air atomizing spray nozzle Expired - Lifetime CA2160095C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US319,990 1989-03-06
US31999094A 1994-10-07 1994-10-07
US08/495,831 US5732885A (en) 1994-10-07 1995-06-28 Internal mix air atomizing spray nozzle
US495,831 1995-06-28

Publications (2)

Publication Number Publication Date
CA2160095A1 true CA2160095A1 (en) 1996-04-08
CA2160095C CA2160095C (en) 2007-09-18

Family

ID=26982243

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002160095A Expired - Lifetime CA2160095C (en) 1994-10-07 1995-10-06 Internal mix air atomizing spray nozzle

Country Status (8)

Country Link
US (1) US5732885A (en)
EP (1) EP0705644B1 (en)
JP (1) JPH0994494A (en)
KR (1) KR100562727B1 (en)
BR (1) BR9504326A (en)
CA (1) CA2160095C (en)
DE (1) DE69516792T2 (en)
MX (1) MX9504241A (en)

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Also Published As

Publication number Publication date
KR960013478A (en) 1996-05-22
DE69516792D1 (en) 2000-06-15
DE69516792T2 (en) 2000-12-28
EP0705644B1 (en) 2000-05-10
JPH0994494A (en) 1997-04-08
BR9504326A (en) 1996-10-08
CA2160095C (en) 2007-09-18
MX9504241A (en) 1997-01-31
US5732885A (en) 1998-03-31
KR100562727B1 (en) 2006-06-23
EP0705644A1 (en) 1996-04-10

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