US2974882A - Combined nozzle - Google Patents

Combined nozzle Download PDF

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Publication number
US2974882A
US2974882A US709103A US70910358A US2974882A US 2974882 A US2974882 A US 2974882A US 709103 A US709103 A US 709103A US 70910358 A US70910358 A US 70910358A US 2974882 A US2974882 A US 2974882A
Authority
US
United States
Prior art keywords
nozzle
grooves
openings
sleeve
bushing
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
US709103A
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English (en)
Inventor
Liston Bohuslav
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.)
Vyzkumny A Zkusebni Letecky Ustav AS
Original Assignee
Vyzkumny A Zkusebni Letecky Ustav 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 Vyzkumny A Zkusebni Letecky Ustav AS filed Critical Vyzkumny A Zkusebni Letecky Ustav AS
Application granted granted Critical
Publication of US2974882A publication Critical patent/US2974882A/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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
    • B05B1/1627—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock
    • B05B1/1672—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock the selectively-effective outlets being arranged on a tube or pipe
    • 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • 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
    • B05B1/22—Spouts
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
    • B05B1/326—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve being a gate valve, a sliding valve or a cock

Definitions

  • the present invention relates to a nozzle for atomizing liquid substances and is particularly directed to a nozzle for spreading insecticides from an aircraft for the extermination of harmful insects.
  • Harmful insects in agriculture and in forests are frequently dealt with by spreading insecticides from aircraft, which are provided with devices enabling a uniform spreading ofthe substance over the stricken area.
  • the insecticide substances are rather frequently used in the form of solutions or emulsions thereof, which must be atomized into fine particles to obtain a perfect result.
  • the atomization is achieved by forcing the solution or emulsion, under pressure, through a number of nozzles, which are usually arranged along the entire wing span of the aircraft.
  • a large number of nozzles is required, and all of these nozzles must be adjustable if the rate of discharge of the atomized liquid has to be changed.
  • a check valve has to be provided between each nozzle and the distributing mains to prevent a trickling ofi of drops of the insecticide from the nozzles after cutting off the supply of the liquid.
  • the existing arrangements are therefore rather complicated and expensive,
  • FIG. 1 is an elevational view, partly broken away and in longitudinal section, of a nozzle embodying the invention.
  • Fig. 2 is a transverse sectional view taken along the line 22 of Fig. 1.
  • the nozzle embodying the present invention comprises a substantially tubular body 1 provided with four longitudinally arranged rows of grooves or slots 2 cut in the outer surface and lying in planes which are perpendicular to the longitudinal axis of the body 1.
  • Each groove of slot 2 has a crescent-like configuration so that its bottom surface 2;; v(Fig. 2) is arcuate.
  • the depth of the cut defining each groove 2 is greater than the thickness of body 1 so that a rectangular opening 3 is formed at the inner surface of the body 1 where each groove 2 intersects that inner surface, the width of this groove determining the dimension of the square or rectangular opening 3 in the direction parallel to the longitudinal axis of body 1.
  • the grooves or slots 2 are spaced apart in the respective longitudinal rows so that the openings 3 form'a helix on the body 1.
  • the machined grooves or slots 2, with the openings 3 defined thereby, form the external part of a so called flat nozzle.
  • a tubular bushing 4 fits tightly inside the body. 1, and
  • the width of the longitudinal grooves 5 in the bushing 4 may be approximately equal to the width of the grooves 2 in the body 1 and determines the dimension, in the circumferential direction, of the rectangular or square nozzle orifice defined by eachopening 3 and a groove 5.
  • the groove 5 in the bushing 4 forms the internal part of the so called flat nozzle. Since it is easily possible to maintain during manufacture, with practically any desired accuracy, the width of the grooves 2 and 5, it is thus also possible to accurately maintain the dimensions of the nozzle orifices.
  • the grooves 5 communicate with the inner space of the bushing through openings 6 which are displaced, in the longitudinal direction, with respect to the openings 3 so as to avoid the direct issuing of the liquid from the openings 6 through the nozzle orifices.
  • the body 1 and the bushing 4 are closed at one end by a plug 7.
  • This plug 7 is provided with a threaded bore through which an adjusting screw 8 extends.
  • a tubular sleeve 9 is arranged slidably on the body 1.
  • This sleeve 9 is provided, at one end, with a packing 10 to prevent leakage of the liquid from between sleeve 9 and body 1, while the other end of sleeve 9 is closed by an end wall 11 through which-the screw 8 extends rotatably.
  • the screw 8 has a collar held against axial displacement relative to end wall 11 so that rotation of screw 8 causes axial displacement of sleeve 9 along body 1.
  • a supply orifice 12 is provided at the end of the body 1 remote from plug 7.
  • the insecticide substance or any other substance to be atomized is supplied under pressure to the nozzle through the orifice 12 and bore 13 into the internal cavity of the bushing 4, from which it passes through the holes 6 into the grooves -5 and escapes through the nozzle orifices defined at the intersections of the grooves 5 and openings 3.
  • the amount of the atomized liquid is adjusted by operating the screw 8, by means of which the tubular sleeve 9 is axially displaced with respect to the body 1, to cover a larger or smaller number of the nozzle orifices.
  • the width of the treated area during one passage of the aircraft may be increased up to 70%.
  • the exact dimensions of the nozzle orifices may be very easily maintained during manufacture, so that the combined nozzle according to this invention is exact and economical in performance and in manufacture.
  • a nozzle for atomizing liquid substances comprising a tubular body having longitudinally arranged rows of crescent-shaped slots extending inwardly from the outer surface of the body in planes perpendicular to the longitudinal axis of said body-and intersecting the inner surface of the latter to define rectangular openings therein, a tubular bushing fitting closely in said body and having longitudinally extending grooves in its outer surface which are circumferentially located to extend across the rectangular openings defined by the longitudinally arranged at the inner surface of the body intersected by therelated grooves, and means defining an inlet for the liquid substance to be atomized opening into said interior of the.
  • a nozzle as in Claim 2 fufther com rising a sleeve axially 's'lidabl'e' on said tiibula'r body to cover selected numbers of said slots at the onter surface of the body and thereby close the related nozzle orifices, and means engaging said sleeve and body and operative to effect axial displacement of the sleeve relative to the body.

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  • Catching Or Destruction (AREA)
  • Nozzles (AREA)
US709103A 1957-01-26 1958-01-15 Combined nozzle Expired - Lifetime US2974882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS357582X 1957-01-26

Publications (1)

Publication Number Publication Date
US2974882A true US2974882A (en) 1961-03-14

Family

ID=5452459

Family Applications (1)

Application Number Title Priority Date Filing Date
US709103A Expired - Lifetime US2974882A (en) 1957-01-26 1958-01-15 Combined nozzle

Country Status (6)

Country Link
US (1) US2974882A (de)
BE (1) BE564057A (de)
CH (1) CH357582A (de)
FR (1) FR1190466A (de)
GB (1) GB853597A (de)
NL (2) NL91081C (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104324821A (zh) * 2014-10-28 2015-02-04 芜湖东正汽车工业有限公司 一种喷水装置
CN105107650A (zh) * 2015-09-17 2015-12-02 湖州织里华宁园艺工程有限公司 便于调节的园艺用喷水装置
CN108029518A (zh) * 2017-12-14 2018-05-15 安徽瀚景观规划设计院有限公司 一种可调式园林景观灌溉器
CN109662579A (zh) * 2019-01-30 2019-04-23 东华理工大学 一种智能煮茶机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470547A (en) * 1982-03-26 1984-09-11 Fairchild Industries, Inc. Variable output nozzle
CN105104111A (zh) * 2015-09-17 2015-12-02 湖州织里华宁园艺工程有限公司 园艺用高度可调型喷水装置
CN105057133A (zh) * 2015-09-17 2015-11-18 湖州织里华宁园艺工程有限公司 园艺用范围可调型喷水装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US497937A (en) * 1893-05-23 Method of destroying insects
US1159549A (en) * 1914-08-08 1915-11-09 Carl C Thomas Fluid-distributing device.
US1165637A (en) * 1914-09-29 1915-12-28 Carl C Thomas Fluid-distributing device.
US1594306A (en) * 1924-01-17 1926-07-27 George J Lenz Spraying device
US2318769A (en) * 1941-11-06 1943-05-11 Rockwood Sprinkler Co Method of making nozzles
US2642314A (en) * 1951-04-14 1953-06-16 Crown Zellerbach Corp Dripless steam shower pipe
US2701412A (en) * 1952-06-14 1955-02-08 Spraying Systems Co Method of making spray nozzle orifice with plural tapered ends

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US497937A (en) * 1893-05-23 Method of destroying insects
US1159549A (en) * 1914-08-08 1915-11-09 Carl C Thomas Fluid-distributing device.
US1165637A (en) * 1914-09-29 1915-12-28 Carl C Thomas Fluid-distributing device.
US1594306A (en) * 1924-01-17 1926-07-27 George J Lenz Spraying device
US2318769A (en) * 1941-11-06 1943-05-11 Rockwood Sprinkler Co Method of making nozzles
US2642314A (en) * 1951-04-14 1953-06-16 Crown Zellerbach Corp Dripless steam shower pipe
US2701412A (en) * 1952-06-14 1955-02-08 Spraying Systems Co Method of making spray nozzle orifice with plural tapered ends

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104324821A (zh) * 2014-10-28 2015-02-04 芜湖东正汽车工业有限公司 一种喷水装置
CN105107650A (zh) * 2015-09-17 2015-12-02 湖州织里华宁园艺工程有限公司 便于调节的园艺用喷水装置
CN108029518A (zh) * 2017-12-14 2018-05-15 安徽瀚景观规划设计院有限公司 一种可调式园林景观灌溉器
CN109662579A (zh) * 2019-01-30 2019-04-23 东华理工大学 一种智能煮茶机
CN109662579B (zh) * 2019-01-30 2024-06-07 东华理工大学 一种智能煮茶机

Also Published As

Publication number Publication date
BE564057A (de)
CH357582A (de) 1961-10-15
GB853597A (en) 1960-11-09
NL216376A (de)
FR1190466A (fr) 1959-10-13
NL91081C (de)

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