EP1527820A1 - Düse mit sich schneidenden Flüssigkeitsstrahlen - Google Patents

Düse mit sich schneidenden Flüssigkeitsstrahlen Download PDF

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Publication number
EP1527820A1
EP1527820A1 EP04025521A EP04025521A EP1527820A1 EP 1527820 A1 EP1527820 A1 EP 1527820A1 EP 04025521 A EP04025521 A EP 04025521A EP 04025521 A EP04025521 A EP 04025521A EP 1527820 A1 EP1527820 A1 EP 1527820A1
Authority
EP
European Patent Office
Prior art keywords
orifices
nozzle
round
fan
jet
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.)
Withdrawn
Application number
EP04025521A
Other languages
English (en)
French (fr)
Inventor
Thomas A. Ursic
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.)
Individual
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 EP1527820A1 publication Critical patent/EP1527820A1/de
Withdrawn legal-status Critical Current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
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • 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
    • B05B7/0807—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 to form intersecting jets

Definitions

  • the present invention relates to a liquid jet nozzle, and more particularly to a liquid jet nozzle which causes the fluid exiting the nozzle to have a fan pattern.
  • nozzles for fluids are presently known, and are used for various different purposes.
  • U.S. Patent Application Publication No. US2003/0015604 discloses a nozzle to promote a flat fluid stream.
  • the nozzle of this reference relates to an atomizing nozzle for injecting fuel into, for example, a furnace.
  • a central liquid stream is impacted on two sides by air jets in order to shape the spray pattern of the liquid stream.
  • U.S. Patent No. 6,267,301 also shows an atomizing nozzle. In this construction once again, two air flow paths are directed toward a central liquid flow to shape the spray pattern of the liquid.
  • U.S. Patent No. 6,161,778 also shows an atomizing nozzle. In this construction, however, the mixed flow of air and liquid exits from two orifices that are directed toward one another.
  • U.S. Patent No. 5,435,491 teaches another type of spray nozzle which produces a fan-shaped pattern by surrounding the central liquid emitting orifice with air emitting orifices so that the compressed air changes the shape of the spray pattern.
  • a nozzle for a different purpose is disclosed in U.S. Patent No. 3,927,833.
  • This nozzle is intended for providing a mixed spray of a plural component liquid resin and a curing agent with granular and fiber material entrained in the mixed spray.
  • the nozzle of the present invention is intended for use as a waterjet cutting nozzle.
  • a typical waterjet system includes a waterjet head that is supplied with liquid at an ultra high pressure, for example, 10,000-60,000 per square inch.
  • the ultra high pressure liquid is discharged from the head in a high velocity stream against the work piece.
  • the liquid stream is used to cut through the work piece.
  • a conventional waterjet nozzle has a round sapphire orifice.
  • a known problem encountered with using such a nozzle is a taper being formed at the cut.
  • fan jet nozzles have been used which provide a fan-shaped stream. These known nozzles are not durable and have a limited life span when used at pressures above 20,000 pounds per square inch (psi). The life expectancy of presently available fan jets above 20,000 psi (more importantly in the 30,000-40,000 psi range) is nowhere near what commercially available round sapphire orifice nozzles can produce.
  • one aspect of the present invention resides in a waterjet nozzle constructed to have two round water jets directed toward one another so that fluid leaving the jets intersects to form a fan jet pattern.
  • the fan jet nozzle of the invention has a much longer useful life than conventional fan jet nozzles at operating pressures above 20,000 psi.
  • the resulting combined or intersected jet retains a very high percentage of the energy available prior to intersection.
  • Fig. 1 is a cross-section through the inventive nozzle
  • Fig. 2 is a view of the fan jet along the arrow A in Fig. 1;
  • Fig. 3 is a schematic view of the pattern of the fan jet produced by the inventive nozzle.
  • Fig. 1 shows a cross-section through the fan jet nozzle 1 of the present invention.
  • the nozzle 1 has a housing 2 with a central channel 3 via which water enters the nozzle and an outlet 4 via which the formed fan jet 5 exits the nozzle.
  • a subnozzle 6 is arranged in the central channel 3 and has two converging sections 7.
  • the subnozzle 6 has a round sapphire orifice 8 arranged in each converging section 7 for forming a round jet 9.
  • the orifices 8 are arranged on converging axes so that the two round water jets 9 leaving the orifices 8 collide with one another at a distance from the exit of the orifices 8.
  • the resulting single vertical jet 5 is shown in Fig. 2, where it is seen to have a fan-shape, instead of remaining circular.
  • the angle a of the fan jet results from the intersection of the forming jets 9 and is mainly a function of the angle ⁇ between the initial forming jets 9.
  • round orifices can be constructed of any suitable material, sapphire is desirable due to its relatively long working life.
  • Fig. 3 is a top view of the fan jet 5 produced by the intersecting initial jets 9.

Landscapes

  • Nozzles (AREA)
EP04025521A 2003-10-28 2004-10-27 Düse mit sich schneidenden Flüssigkeitsstrahlen Withdrawn EP1527820A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
2000-02-22
US51535603P 2003-10-28 2003-10-28
US515356P 2003-10-28

Publications (1)

Publication Number Publication Date
EP1527820A1 true EP1527820A1 (de) 2005-05-04

Family

ID=34421827

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04025521A Withdrawn EP1527820A1 (de) 2003-10-28 2004-10-27 Düse mit sich schneidenden Flüssigkeitsstrahlen

Country Status (2)

Country Link
US (1) US20050087631A1 (de)
EP (1) EP1527820A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ307860B6 (cs) * 2018-03-13 2019-07-03 PTV, spol. s r.o. Více-trysková abrazivní hlavice

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7219849B1 (en) * 2005-12-13 2007-05-22 Graves Spray Supply, Inc. Liquid impingement nozzle with paired openings
US7789734B2 (en) * 2008-06-27 2010-09-07 Xerox Corporation Multi-orifice fluid jet to enable efficient, high precision micromachining
FR3086515B1 (fr) * 2018-10-02 2023-04-21 Oreal Procede de traitement des cheveux

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2225463A1 (de) * 1972-05-25 1973-12-06 Bendix Corp Vorrichtung zum aufbau eines stroemungsmittel-schneidstrahls
DE2928698A1 (de) * 1979-07-16 1981-02-19 Nat Res Dev Vorrichtung zur erzeugung eines mit schleifmittelteilchen versetzten fluessigkeitsstrahles (dispenser)
EP0119338A1 (de) * 1983-03-17 1984-09-26 Jetin Industrial Limited Hochdruckflüssigkeitsschneidgerät
EP1215447A2 (de) * 2000-12-15 2002-06-19 Bartels Mikrotechnik GmbH Verfahren und Vorrichtung zur Duftsteuerung

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US1173279A (en) * 1912-12-09 1916-02-29 Kinney Mfg Company Sprinkler-nozzle.
US2235258A (en) * 1940-06-25 1941-03-18 Fog Nozzle Co Fire extinguishing nozzle
US2290979A (en) * 1941-06-14 1942-07-28 Hydro Blast Corp Sandblasting device
US2302021A (en) * 1941-11-06 1942-11-17 Rockwood Sprinkler Co Nozzle for generating fog
US2323464A (en) * 1942-05-21 1943-07-06 Akron Brass Mfg Company Inc Spray nozzle
US2364848A (en) * 1944-01-19 1944-12-12 Gordon F Hurst Fog nozzle
US2499092A (en) * 1946-05-14 1950-02-28 Fog Nozzle Company Fog nozzle
US2605144A (en) * 1950-08-25 1952-07-29 Gen Electric Nozzle
US2812213A (en) * 1956-02-16 1957-11-05 James A Bede Spray nozzle
US2928611A (en) * 1958-11-17 1960-03-15 Elkhart Brass Mfg Company Fire hose nozzle
US3927833A (en) * 1974-04-29 1975-12-23 Ransburg Corp Apparatus for forming multiple-component composite structures
GB1481042A (en) * 1974-06-05 1977-07-27 Hart B Guns for forming jets of particulate material
US4131236A (en) * 1975-12-24 1978-12-26 The British Hydromechanics Research Association High velocity liquid jet cutting nozzle
US4534427A (en) * 1983-07-25 1985-08-13 Wang Fun Den Abrasive containing fluid jet drilling apparatus and process
US4660773A (en) * 1983-11-08 1987-04-28 Flow Industries, Inc. Leakproof high pressure nozzle assembly
GB8432338D0 (en) * 1984-12-21 1985-02-06 Sharp B L Nebulisation of liquids & liquid suspensions
US4687066A (en) * 1986-01-15 1987-08-18 Varel Manufacturing Company Rock bit circulation nozzle
US4768709A (en) * 1986-10-29 1988-09-06 Fluidyne Corporation Process and apparatus for generating particulate containing fluid jets
US4936512A (en) * 1988-12-14 1990-06-26 Flow International Corporation Nozzle assembly and method of providing same
US5249747A (en) * 1990-07-12 1993-10-05 Par-Way Group Sprayable dispensing system for viscous vegetable oils and apparatus therefor
US5288186A (en) * 1992-09-21 1994-02-22 University Of Kentucky Research Foundation Apparatus and method of high-pressure waterjet assisted cooling/lubrication in machining
US5307992A (en) * 1992-11-18 1994-05-03 Usbi Co. Method and system for coating a substrate with a reinforced resin matrix
JP2769962B2 (ja) * 1993-04-21 1998-06-25 アロイ工器株式会社 塗装に適する空気添加型噴霧装置
US5358179A (en) * 1993-08-18 1994-10-25 The Procter & Gamble Company Atomization systems for high viscosity products
US5469926A (en) * 1994-04-22 1995-11-28 Bor-Mor, Inc. Directional boring drill bit blade
DE4440631C2 (de) * 1994-11-14 1998-07-09 Trumpf Gmbh & Co Verfahren und Bearbeitungsmaschine zum Strahlschneiden von Werkstücken mittels wenigstens zweier Schneidstrahlen
US5890661A (en) * 1996-11-27 1999-04-06 Par-Way Group Colliding stream spray dispensing system with a moldable nozzle
EP0863275A3 (de) * 1997-03-07 1998-10-21 JENOPTIK Aktiengesellschaft Verfahren und Vorrichtung zum Räumen von Fugen im Mauerwerk
US6267301B1 (en) * 1999-06-11 2001-07-31 Spraying Systems Co. Air atomizing nozzle assembly with improved air cap
US6161778A (en) * 1999-06-11 2000-12-19 Spraying Systems Co. Air atomizing nozzle assembly with improved air cap
US20020066345A1 (en) * 2000-12-06 2002-06-06 Shepherd John D. Waterjet edge cut taper controlling method
US20030015604A1 (en) * 2001-07-18 2003-01-23 Kobayashi William Thoru Nozzle to promote flat fluid stream
US7100844B2 (en) * 2002-10-16 2006-09-05 Ultrastrip Systems, Inc. High impact waterjet nozzle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2225463A1 (de) * 1972-05-25 1973-12-06 Bendix Corp Vorrichtung zum aufbau eines stroemungsmittel-schneidstrahls
DE2928698A1 (de) * 1979-07-16 1981-02-19 Nat Res Dev Vorrichtung zur erzeugung eines mit schleifmittelteilchen versetzten fluessigkeitsstrahles (dispenser)
EP0119338A1 (de) * 1983-03-17 1984-09-26 Jetin Industrial Limited Hochdruckflüssigkeitsschneidgerät
EP1215447A2 (de) * 2000-12-15 2002-06-19 Bartels Mikrotechnik GmbH Verfahren und Vorrichtung zur Duftsteuerung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ307860B6 (cs) * 2018-03-13 2019-07-03 PTV, spol. s r.o. Více-trysková abrazivní hlavice

Also Published As

Publication number Publication date
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