US3140826A - Nozzles for flame spraying pistols - Google Patents

Nozzles for flame spraying pistols Download PDF

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Publication number
US3140826A
US3140826A US130292A US13029261A US3140826A US 3140826 A US3140826 A US 3140826A US 130292 A US130292 A US 130292A US 13029261 A US13029261 A US 13029261A US 3140826 A US3140826 A US 3140826A
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United States
Prior art keywords
passages
barrel
flame spraying
nozzles
axis
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Expired - Lifetime
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US130292A
Inventor
Kudelka Vitezslav
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FW Berk and Co Ltd
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FW Berk and Co Ltd
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Publication date
Application filed by FW Berk and Co Ltd filed Critical FW Berk and Co Ltd
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    • 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
    • B05B7/16—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 incorporating means for heating or cooling the material to be sprayed
    • B05B7/20—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 incorporating means for heating or cooling the material to be sprayed by flame or combustion
    • B05B7/201—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 incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle
    • B05B7/205—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 incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle the material to be sprayed being originally a particulate material
    • 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
    • B05B7/16—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 incorporating means for heating or cooling the material to be sprayed
    • B05B7/20—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 incorporating means for heating or cooling the material to be sprayed by flame or combustion
    • B05B7/201—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 incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle
    • B05B7/203—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 incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle the material to be sprayed having originally the shape of a wire, rod or the like

Definitions

  • the invention provides a nozzle comprising a barrel through which extends a plurality of longitudinal passages for powder and a plurality of longitudinal passages for gas, all the passages having outlet openings which are arranged atone end of the barrel so that the openings of the gas passages alternate with the openings of the powder passages.
  • FIGURE 1 is a view of the inlet end of a nozzle for a pistol intended for the flame spraying of powders
  • FIGURE 2 is a view of the outlet end of the nozzle
  • FIGURE 3 is a section on line A-A of FIGURE 2, and
  • FIGURE 4 is a section on line B--B of FIGURE 2.
  • the nozzle illustrated comprises a substantially cylindrical barrel 1 with a cylindrical portion 2 of smaller diameter at one end, which is the inlet end of the nozzle. This smaller portion is externally screw-threaded to enable the nozzle to be screwed in the pistol (not shown).
  • Two groups of passages 3, 4 extend longitudinally through the barrel 1 for the purpose of conveying powder or gas, there being conveniently four passages in one group for the gas and four in the other group for the powder.
  • the inlet ends of the powder passages 3 are at the end of the smaller cylindrical portion 2. These passages 3 extend through the smaller cylindrical portion parallel with the axis of the barrel. On entering the larger por- Ice tion of the barrel, they are, as shown in FIGURE 4, first inclined outwards and then run through the barrel parallel with its axis until they near the outlet when they are inclined towards the axis of the barrel.
  • the inlet ends of the gas passages 4 are at the shoulder 5 formed at the end of the larger portion of the barrel adjacent the smaller portion. These passages extend through barrel parallel with its axis until they near the outlet end when they are inclined toward the axis of the barrel (see FIGURE 3).
  • the gas can be supplied to the inlet ends of the passages opening at the end of the smaller portion and the powder to the inlet ends of the passages opening at the shoulder.
  • the outlet ends of the gas passages and the powder passages are all disposed at the same distance from the axis of the barrel and are so arranged that the outlet ends of the gas passages alternate with those of the powder passages.
  • the external surface of the barrel can be suitably slotted to permit air cooling of the nozzle.
  • a plurality of longitudinal slots can be spaced around the barrel near the outlet end.
  • a nozzle for a pistol for the flame spraying of powders comprising a cylindrical barrel having a main portion tapered at one end and a cylindrical portion of reduced diameter at the other end and first and second groups of passages extending longitudinally through said barrel, each passage in said first group extending through said reduced cylindrical portion with the axis thereof and then being inclined outwards on entering said main portion, after which it runs parallel to the axis of the barrel until being inclined towards said axis at said tapered end and each passage in said second group extending Within said main portion parallel with the said axis and being inclined towards said axis at said tapered end, and said passages in said first group alternating with said passages in said second group.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Nozzles (AREA)

Description

July 14, 1964 v. KUDELKA 3,140,826
NOZZLES FOR FLAME SPRAYING PISTOLS Filed Aug. 9, 1961 INVENTOR ATTORNEY United States Patent 3,140,826 NOZZLES FOR FLAME SPRAYING PISTOLS Vitezslav Kudelka, London, England, assignor to F. W.
Berk & Company Limited, London, England, a British company Filed Aug. 9, 1961, Ser. No. 130,292 Claims priority application Great Britain Feb. 1, 1961 1 Claim. (Cl. 239-79) This invention relates to nozzles for flame spraying pistols.
It is an object of the invention to provide an improved such nozzle which can be used in the flame spraying of powders with a substantially greater through-put of powder than has been possible hitherto. Accordingly, the invention provides a nozzle comprising a barrel through which extends a plurality of longitudinal passages for powder and a plurality of longitudinal passages for gas, all the passages having outlet openings which are arranged atone end of the barrel so that the openings of the gas passages alternate with the openings of the powder passages.
A preferred embodiment of the invention is illustrated in the accompanying drawings of which:
FIGURE 1 is a view of the inlet end of a nozzle for a pistol intended for the flame spraying of powders,
FIGURE 2 is a view of the outlet end of the nozzle,
FIGURE 3 is a section on line A-A of FIGURE 2, and
FIGURE 4 is a section on line B--B of FIGURE 2.
The nozzle illustrated comprises a substantially cylindrical barrel 1 with a cylindrical portion 2 of smaller diameter at one end, which is the inlet end of the nozzle. This smaller portion is externally screw-threaded to enable the nozzle to be screwed in the pistol (not shown).
Two groups of passages 3, 4 extend longitudinally through the barrel 1 for the purpose of conveying powder or gas, there being conveniently four passages in one group for the gas and four in the other group for the powder.
The inlet ends of the powder passages 3 are at the end of the smaller cylindrical portion 2. These passages 3 extend through the smaller cylindrical portion parallel with the axis of the barrel. On entering the larger por- Ice tion of the barrel, they are, as shown in FIGURE 4, first inclined outwards and then run through the barrel parallel with its axis until they near the outlet when they are inclined towards the axis of the barrel.
The inlet ends of the gas passages 4 are at the shoulder 5 formed at the end of the larger portion of the barrel adjacent the smaller portion. These passages extend through barrel parallel with its axis until they near the outlet end when they are inclined toward the axis of the barrel (see FIGURE 3).
If desired, the gas can be supplied to the inlet ends of the passages opening at the end of the smaller portion and the powder to the inlet ends of the passages opening at the shoulder.
The outlet ends of the gas passages and the powder passages are all disposed at the same distance from the axis of the barrel and are so arranged that the outlet ends of the gas passages alternate with those of the powder passages.
The external surface of the barrel can be suitably slotted to permit air cooling of the nozzle. For example, a plurality of longitudinal slots can be spaced around the barrel near the outlet end.
What I claim is:
A nozzle for a pistol for the flame spraying of powders comprising a cylindrical barrel having a main portion tapered at one end and a cylindrical portion of reduced diameter at the other end and first and second groups of passages extending longitudinally through said barrel, each passage in said first group extending through said reduced cylindrical portion with the axis thereof and then being inclined outwards on entering said main portion, after which it runs parallel to the axis of the barrel until being inclined towards said axis at said tapered end and each passage in said second group extending Within said main portion parallel with the said axis and being inclined towards said axis at said tapered end, and said passages in said first group alternating with said passages in said second group.
References Cited in the file of this patent UNITED STATES PATENTS
US130292A 1961-02-01 1961-08-09 Nozzles for flame spraying pistols Expired - Lifetime US3140826A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3817/61A GB988572A (en) 1961-02-01 1961-02-01 Improvements relating to nozzles for spraying fusible materials

Publications (1)

Publication Number Publication Date
US3140826A true US3140826A (en) 1964-07-14

Family

ID=9765468

Family Applications (1)

Application Number Title Priority Date Filing Date
US130292A Expired - Lifetime US3140826A (en) 1961-02-01 1961-08-09 Nozzles for flame spraying pistols

Country Status (6)

Country Link
US (1) US3140826A (en)
BE (1) BE613246A (en)
DE (1) DE1226917B (en)
FR (1) FR1327042A (en)
GB (1) GB988572A (en)
NL (1) NL274228A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393871A (en) * 1964-01-03 1968-07-23 Berk Ltd High temperature flame spraying pistols
US20080311010A1 (en) * 2005-05-20 2008-12-18 Grundfos Nonox A/S Atomization of Fluids By Mutual Impingement of Fluid Streams
CN107398362A (en) * 2016-05-19 2017-11-28 莱希勒有限公司 For spraying the nozzle of liquid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533020A1 (en) * 1982-09-13 1984-03-16 Siderurgie Fse Inst Rech HOT TUNNEL NOZZLE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2137442A (en) * 1935-09-27 1938-11-22 Earl F Callan Method of spraying molten pulverized quartz or enamel mixtures
US2928236A (en) * 1957-01-14 1960-03-15 Hartmann J Kircher Rocket engine injector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2397165A (en) * 1943-10-25 1946-03-26 Metallizing Engineering Co Inc Gun construction for gas blast spraying heat-fusible materials
DE817669C (en) * 1950-04-04 1951-10-18 Roehm & Haas G M B H Powder Spray Gun

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2137442A (en) * 1935-09-27 1938-11-22 Earl F Callan Method of spraying molten pulverized quartz or enamel mixtures
US2928236A (en) * 1957-01-14 1960-03-15 Hartmann J Kircher Rocket engine injector

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393871A (en) * 1964-01-03 1968-07-23 Berk Ltd High temperature flame spraying pistols
US20080311010A1 (en) * 2005-05-20 2008-12-18 Grundfos Nonox A/S Atomization of Fluids By Mutual Impingement of Fluid Streams
US8313717B2 (en) * 2005-05-20 2012-11-20 Grundfos Nonox A/S Atomization of fluids by mutual impingement of fluid streams
CN107398362A (en) * 2016-05-19 2017-11-28 莱希勒有限公司 For spraying the nozzle of liquid
US10864531B2 (en) 2016-05-19 2020-12-15 Lechler Gmbh Nozzle for spraying liquids
CN107398362B (en) * 2016-05-19 2021-01-05 莱希勒有限公司 Nozzle for spraying liquid

Also Published As

Publication number Publication date
BE613246A (en) 1962-05-16
NL274228A (en)
DE1226917B (en) 1966-10-13
GB988572A (en) 1965-04-07
FR1327042A (en) 1963-05-17

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