EP0411830B1 - Pneumatische Niederdruckspritzpistole - Google Patents

Pneumatische Niederdruckspritzpistole Download PDF

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Publication number
EP0411830B1
EP0411830B1 EP19900308206 EP90308206A EP0411830B1 EP 0411830 B1 EP0411830 B1 EP 0411830B1 EP 19900308206 EP19900308206 EP 19900308206 EP 90308206 A EP90308206 A EP 90308206A EP 0411830 B1 EP0411830 B1 EP 0411830B1
Authority
EP
European Patent Office
Prior art keywords
air
spray
paint
flow
spray hole
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
EP19900308206
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English (en)
French (fr)
Other versions
EP0411830A2 (de
EP0411830A3 (en
Inventor
Nobuyoshi Morita
Hajime Iwata
Satoru Murata
Masato Suzuki
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.)
Anest Iwata Corp
Original Assignee
Anest Iwata Corp
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
Priority claimed from JP1989087805U external-priority patent/JPH0711802Y2/ja
Priority claimed from JP1989087804U external-priority patent/JPH0711805Y2/ja
Priority claimed from JP1193626A external-priority patent/JPH0724800B2/ja
Application filed by Anest Iwata Corp filed Critical Anest Iwata Corp
Publication of EP0411830A2 publication Critical patent/EP0411830A2/de
Publication of EP0411830A3 publication Critical patent/EP0411830A3/en
Application granted granted Critical
Publication of EP0411830B1 publication Critical patent/EP0411830B1/de
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
    • B05B7/0081—Apparatus supplied with low pressure gas, e.g. "hvlp"-guns; air supplied by a fan
    • 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
    • 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
    • B05B7/0815—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 with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter

Definitions

  • the present invention relates to a spray gun to atomize and spray the spray materials such as paint by compressed air, and more particularly to a spray gun, which can sufficiently atomize the material when the pressure of compressed air is 1 kgf/cm2 or less and which can avoid the splashing of paint particles and prevent environmental pollution.
  • a spray gun generally called air spray gun, is used for the painting and the coating process to spray the paint materials.
  • the air spray gun using compressed air for atomization is roughly divided into internal mixing type and external mixing type.
  • the internal mixing type spray gun is the one, by which the material paint and the compressed air are mixed together within an atomizing head of the spray gun, and air-liquid mixture is injected and atomized from the atomizing nozzle.
  • a paint injection hole and an air injection hole are opened outwardly on the atomizing head, and the liquid paint flow injected from the paint injection hole is dispersed and atomized by the air flow, which is diffused and injected around the paint flow.
  • These spray guns utilize the suction force of the compressed air for the injection of the paint or the paint is injected by a force-feed unit such as pump at the pressure of several kgf/cm2, and atomization is not achievable by merely injecting the paint material.
  • the air is used as an energy to atomize the paint, and the pressure of 2 - 5 kgf/cm2 is usually applied.
  • a paint nozzle 101 is opened into an air gap 102.
  • the nozzle hole 104 is opened and closed by a needle valve 103 to control the injection of the paint.
  • the paint is dispersed within an air cap 102, and the paint is sprayed out from the spray hole 105, which is placed face-to-face to the nozzle hole 104 and is opened into the center of the air cap 102.
  • Such conventional internal mixing type spray gun is generally used as a special spray gun to spray wall paint or adhesive in the case where strict smoothness of the painted surface is not required because the size of the sprayed particles is coarser than that of external mixing type.
  • the external mixing type gun is generally used as the so-called spray gun and is known as suitable for various types of paint materials and various painting conditions.
  • the common features of this type spray gun are that the injection hole of the paint nozzle is located at the center, and the injection hole faces to the outside of the atomizing head.
  • An annular air hole is provided around the injection hole, and compressed air is injected at the pressure of 3 - 5 kgf/cm2 as if it surrounds the paint flow injected from said injection hole. Namely, the paint and the compressed air are injected separately and are mixed and atomized in front of and outside the atomizing head.
  • spray guns of this type are designed in such manner that a pair of lateral air holes is provided on both sides, and compressed air is sprayed from both sides to said spray flow in order to adjust the shape of the spray pattern. Therefore, the spray flow sprayed in circular pattern at the center may be flattened by changing the injection pressure and injection quantity at the lateral air holes.
  • this spray gun the better atomization is achieved when compressed air quantity (or pressure) is increased, and the painted surface can be finished well by spraying finer particles, but the paint is splashed more in this case.
  • the means to atomize the paint material is not necessarily limited to the compressed air, and a method is generally practiced, in which paint material is injected at high pressure from nozzle and is atomized through its collision with atmospheric air.
  • the spray gun for industrial purpose in this case requires the high pressure of 100 kgf/cm2, and there is also the problem of danger because special type pump is used. For this reason, paint material pressure is decreased to several tens of kgf/cm2, and a spray gun is used, by which compressed air is simultaneously used. But, there still remains the above problem, and the air pressure is not low enough, and the satisfactory spray gun is not yet available at present.
  • US-A-2569251 represents the prior art as referred to in the preamble of claim 1 and claim 4 respectively.
  • the object of this invention is to offer a spray gun, in which the spraying air pressure is decreased as low as 1 kgf/cm2 or less and which can atomize the spray particles to the sane degree as the conventional type spray gun in order not to impair the finish of the sprayed surface.
  • the paint injected from the nozzle is mixed and dispersed by the compressed air supplied from around it and is sent towards the spray hole. Because the spray hole has different opening ratios in longitudinal and lateral directions, the flow of paint-air mixture is sprayed in a flattened elliptical shape. Then, compressed air is blown on this spray flow from the air holes on both sides, the spray particles are enveloped by the air, and the pattern is stabilized. The coarse particles are atomized, and particle size is equalized. Because the first atomization is performed within the cap, the material is atomized at low pressure and with less air quantity. Also, because the air supplied from the air holes on both sides is blown onto the spray flow in a flattened pattern from the direction of its shorter axis, the width of the pattern can be efficiently increased and the particle size can be reduced with the air flow at low pressure.
  • the secondary air injected from the second spray hole works to reduce the pattern, and a circular pattern with less spreading can be obtained.
  • Fig. 1 shows a general arrangement of the spray gun according to the present invention.
  • the spray gun main unit 1 consists of a gun barrel 2 and a grip 3. Below the grip 3, an air nipple 4 is furnished to take the compressed air from outside, and it is connected by air hose with an air source (not shown). Inside the grip 3, a passage hole 6 is furnished to supply the compressed air into an air valve unit 5, and said air valve unit 5 comprises an air valve 9 inside an air regulation pipe 8, which is inserted into an air regulation hole 7 embedded in the gun barrel 2 from behind.
  • the air regulation pipe 9 is provided with a hole 10, passing from outside to inside. By turning the air regulation pipe 8, air flow is changed according to the alignment of said hole 10 and the passage hole 6 furnished inside said grip 3.
  • the air regulation pipe 8 is turned by the knob 11 provided behind and outside the gun barrel 2.
  • the air valve 9 is pressed on the sheet 13 of the spray gun main unit 1 by resilient force of a spring 12, and compressed air is thus stopped.
  • the needle valve 14 extended toward the tip of the gun barrel 2 passes through the center of said air valve 9.
  • a spring 15 and an opening adjusting knob 16 to control the backward movement of the needle valve 14 are furnished.
  • an air valve rod 18 is provided outside the needle valve 14, and the air valve 9 is moved backward by the operation of a trigger 17, thus sending compressed air into an air distribution chamber 19. If the trigger 17 is pulled further, the needle valve 14 retracts as the air valve rod 18 moves backward.
  • a distribution valve 20 is engaged by a knob 48 as it can freely rotate.
  • Two air passages are furnished toward the front part of the gun barrel 2.
  • One of the passages is permanently communicated with the air distribution chamber 19 and is used to atomize the paint, and the other changes its communicating area by the position of the notched recess 21 on the distribution chamber 19. Thus, it is used to control the flow rate and to adjust the spray pattern as described later.
  • An atomizer is furnished at the tip of the gun barrel 2.
  • a paint nozzle 22 to inject the paint is mounted at the tip of the gun barrel 2.
  • the tip of said needle valve 14 strikes the sheet 22a inside the nozzle hole 23 of the paint nozzle 22, and the paint is stopped.
  • the outer portion of this paint nozzle 22 is engaged with the spray gun main unit 1 to form a passage 24.
  • the primary air passage 27 branched off by the distribution valve 20 is communicated with the passage 24, and said passage 24 is communicated with the passage 24′.
  • a paint passage 30 is formed at the center of the paint nozzle 22, and it is communicated with the paint supply source (not shown) through the paint nipple 51.
  • paint nozzle 22 forms the paint passage 30 at its center so that the tip of the needle valve 14 touches the sheet 22a inside the nozzle hole 23, thus controlling the injection of the paint.
  • the paint nozzle 22 is covered with an air cap 40, and it is fixed on the tip of the spray gun main unit 1 by a cover 41.
  • the nozzle hole 23 is arranged inside and on the same axial line with the spray hole 32, which is opened to the center of said air cap 40.
  • Said spray hole 32 forms a lip-like opening with the cylindrical inlet 33, providing conical or approximately spherical inner surface 34 and a V-shaped groove 35 outward from its center.
  • the front portion of the inlet 33 has the tapered surface 37, forming a primary air chamber 39, and it is arranged in such manner that the compressed air flows from said passage 24 and the passage 24′ between this tapered surface 37 and the tip 38 of said paint nozzle 22.
  • the compressed air is mixed with the paint injected at the tip of the nozzle hole 23, is dispersed in foggy status and is sprayed from the spray hole 32. Because the spray hole 32 is formed in V-shaped groove 35 with a lip-like opening as described above, the spray flow is blown out in approximately elliptical shape.
  • Conical outer surface 36 is provided outside and inside the spray hole 32, and the thickness of the opening is fabricated as thin as possible.
  • a passage 44 communicating with said secondary air passage 29 is formed.
  • lateral air holes 43 to inject the flattened air flow are furnished at opposite positions to maintain the injecting direction toward the center of spraying.
  • the lateral air hole 43 having the same opening shape as the spray hole 32 is shown.
  • the flattened air flow spreading toward the same direction is supplied from the opening.
  • the flattened air flow collides with the flattened spray flow injected from the spray hole 32 almost totally.
  • the lateral air hole 43 is provided with a lip-like opening, by placing a V-shaped groove into a hole having conical or spherical inner surface just as in the case of the spray hole 32.
  • Fig. 7 shows an example, in which lateral air hole 43 is designed in separate structure and is incorporated separately.
  • Fig. 8 (A) shows another example, in which the lateral air hole 43 is designed in elliptical shape, i.e. in oblong shape extending toward the direction perpendicular to the spraying direction.
  • Fig. 8 (B) represents an example, in which the lateral air hole 43 is designed in tapered fan-shaped circular hole.
  • the injection with wider spreading can be achieved by maintaining the ratio of the opening area to the area of passage base at 1 or more, and extreme deformation of the spray pattern can be prevented.
  • Fig. 3 shows a spray gun according to another embodiment of this invention.
  • the same number refers to the same component as in the above embodiment.
  • the paint nozzle 22 is covered with the tip cap 31, and the nozzle hole 23 is provided on the same axial line in a spray hole 32, which is opened to the tip center of the tip cap 31.
  • said spray hole 32 comprises a cylindrical inlet 33, and a conical or approximately spherical inner surface 34.
  • a V-shaped groove 35 is formed at the center, and an approximately lip-like opening is provided.
  • the frontal portion of the inlet 33 has the tapered surface 38′, and the primary air chamber 39 is formed. It is arranged in such manner that the compressed air from air passage 24 and the passage 24′ flows between said tapered surface 38′ and the tip outer diameter 38 of said paint nozzle 22.
  • Conical outer surface 36′ is provided outside the spray hole 32 similarly to inside.
  • An air cap 40′ engaging with said conical outer surface 36′ and having air injection holes at symmetrical positions to the spraying axis, is furnished and is integrated with said tip cap 31. It is removably fixed on the tip of the spray gun main unit 1 by the cover 41.
  • 3 air passages are provided in the gun barrel 2 from the air distribution chamber 19 to the frontal portion of the gun barrel 2.
  • One of the passages is placed, as the primary air passage 27, at the portion with smaller diameter 47 of the distribution valve 20, is permanently communicated with the air distribution chamber 19 and is used to supply compressed air, which is mixed with the paint injected from the nozzle hole 23 and is sprayed from the spray hole 32.
  • the communicating area is changed according to the turning position of the notched recess 21 on the distribution valve 20, and flow rate is thus adjustable.
  • the air distribution valve 20 is engaged with the air distribution chamber 19 by the externally mounted knob 48 in such manner that it can be freely rotated.
  • a second air injection hole 45 is furnished with the central axis on the spray hole 32 and at opposite positions orthogonally to the lateral air hole 43 of the air cap 40.
  • compressed air is injected obliquely toward the front.
  • Figs. 6 A and B air is injected toward the spray flow from the spray hole 32 at the end of longer axis, and it reduces the spray pattern.
  • the second injection hole 45 is communicating with the air passage 25 provided outside said paint nozzle 22 through the passage 46 on the tip cap 31.
  • one passage injects from the second injection hole 45, and the other from lateral air hole 43.
  • the secondary air is communicated with either one of these passages by the distribution valve 20. If it is supplied to the lateral air hole 43, it is sprayed in a larger spray pattern, and if it is supplied to the second injection hole 45, it is sprayed in a nearly circular and smaller spray pattern.
  • 49 represents an auxiliary air hole provided on the tip cap 31, and it is communicated with said primary air chamber 39.
  • the atomized spray pattern suitable for paint coating can be obtained at the pressure as low as 1/5 of that of the conventional air spraying because compressed air flow is collided with the spray flow by re-atomizing and by forming and adjusting the pattern. Since no hydraulic atomizing means is employed, paint may be fed by low pressure air as described above, and no special pressurizing means for the paint is required. Accordingly, the new spray gun can be used as easily as the conventional type air spray gun, and the better effects can be obtained.
  • the primary air for spraying two independent secondary air for pattern formation or for pattern adjustment are provided, and the primary air is permanently supplied. Moreover, the primary air must be permanently supplied, and one of the secondary air must be supplied with adjustment.
  • a plurality of passages can be provided, which are communicated permanently with the passage by small diameter portion not changeable by rotating and by notched recess changeable according to mutual position with inner surface of air distribution chamber. It is also possible to supply compressed air necessary for each passage by operating a single distribution valve.

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  • Nozzles (AREA)

Claims (5)

  1. Spritzpistole, die folgende Komponenten aufweist: eine Düse (22), die an einem vorderen Ende der Spritzpistole angebracht ist und eine kreisförmige Düsenöffnung hat, die für den Durchfluß Von Farbe durch diese geeignet ist;
       eine Düsenkappe (31), die an der Düse und um diese herum befestigt ist und eine konisch geformte Innerfläche (37) und ein Spritzloch (32), das darin gebildet wird, hat, wobei das Spritzloch um eine nach vorn und hinten verlaufende Spritzachse durchführend durch ein vorderes Ende der Düsenkappe gebildet wird, wobei das Spritzloch durch eine längliche, V-förmige Kerbe (35) mit einer Hauptachse und einer Nebenachse definiert ist, die senkrecht zu der Spritzachse verlaufen, worin die Düsenkappe eine konisch geformte Außenfläche hat;
       ein erstes Luftstrommittel (24) zur Bereitstellung eines ersten, im wesentlichen nach vorn gerichteten Stromes von Druckluft um die Düse und hin zu der Düsenkappe, derart, daß Farbe, wenn die Farbe durch die Düsenöffnung nach vorn zugeführt wird, mit dem ersten Strom von Druckluft gemischt und durch diesen zerstäubt und dann in einem Spritzmuster durch das Spritzloch in der Düsenkappe ausgestoßen wird;
       eine Luftkappe (40), die an der Düsenkappe argebracht ist und ein zweites Luftstrommittel (14) zur Bildung eines zweiten Stromes von Druckluft aufweist, um die Farbe weiter zu zerstäuben, nachdem sie durch das Spritzloch (32) der Düsenkappe ausgestoßen worden ist, und um das Muster des Farbsprays an Stellen in der Strömungsrichtung des Spritzlochs zu steuern, wobei das zweite Luftstrommittel zwei seitliche Luftaustritte (43) umfaßt;
       dadurch gekennzeichnet, daß die Luftkappe (40) ein Paar in Richtung der Längsachse verlaufender Luftaustritte (45) aufweist, die hinter dem Spritzloch und symmetrisch um dieses auf dessen Seiten angeordnet sind, angrenzend an die gegenüberliegenden Enden der Hauptachse der länglichen V-förmigen Kerbe (35), die das Spritzloch bildet, um Luft aus dem Spritzloch hin zu dem Spraystrom zu injizieren; und daß die seitlichen Austritte (43) vor dem Spritzloch und symmetrisch um dieses auf dessen Seiten angeordnet sind, angrenzend an die gegenüberliegenden Enden der Nebenachse der länglichen V-förmigen Kerbe, die das Spritzloch bildet. wobei die Spritzpistole außerdem ein Verteilungssteuerungsmittel zur Steuerung der Rate des Luftstroms durch die seitlichen und die in der Richtung der Längsachse verlaufenden Luftaustritte aufweist, wobei das Verteilungssteuerungsmittel ein Wegeventil (20) aufweist, das ein Paar verstellbarer Verteilungsöffnungen (28, 29) hat und betätigt werden kann, um jedem einzelnen der seitlichen und der in Richtung der Längsachse verlaufenden Luftaustritte (43, 45) Druckluft zuzuführen.
  2. Einrichtung nach Anspruch 1, die außerdem ein Farbsteuerungsmittel zur Steuerung der Rate des Stroms dar Farbe durch die Düsenöffnung der Düse aufweist.
  3. Einrichtung nach Anspruch 2, worin das Farbsteuerungsmittel ein Nadelventil umfaßt.
  4. Spritzpistole, welche folgende Komponenten aufweist;
       eine Düse (22), die an einem vorderen Ende der Spritzpistole angebracht werden kann und eine Düsenöffnung hat, die für den Durchfluß von Farbe durch diese geeignet ist;
       eine Düsenkappe (31, 40), die ein Spritzloch hat, das durchführend durch deren vorderes Ende gebildet wird, welche auf der Düse und um diese herum angebracht ist;
       ein erstes Luftstrommittel (24) zur Bereitstellung eines ersten, im wesentlicher nach vorn gerichteten Stromes von Druckluft um die Düse und hin zu der Düserkappe, derart, daß Farbe. wenn die Farbe durch die Düsenöffnung nach vorn zugeführt wird, mit dem ersten Strom von Druckluft gemischt und durch diesen zerstäubt und dann in einem Spritzmuster durch das Spritzloch der Düsenkappe ausgestoßen wird;
       und eine Luftkappe (40), die an der Düsenkappe angebracht ist und ein zweites Luftstrommittel zur Bereitstellung eines zweiten Stromes von Druckluft aufweist, um das Zerstäuben der Farbe und das Spritzmuster zu steuern;
       dadurch gekennzeichnet, daß die Düsenöffnung (23) ein konisches Innenprofil hat, das nach vorn divergiert, und sich durch deren Außenfläche hin zum dem Spritzloch öffnet;
       wobei die Düsenkappe eine Einlaßfläche (33) hat, die angrenzend an deren vorderes Ende gebildet wird und zu einem vorderen Ende der Düsenöffnung hin zeigt;
       ein vorderes Ende der Düsenkappe hat ein konisches oder annähernd kugelförmiges Innenprofil (34) mit einem Innendurchmesser, der von der Einlaßfläche nach vorn konvergiert, und ein konisches Außenprofil (36) mit einem Außendurchmesser, der nach vorn konvergiert, so daß an dem vorderen Ende der Düsenkappe ein Abschnitt mit verminderter Wandstärke gebildet wird, wobei die längliche V-förmige Kerbe (35) durch diesen Abschnitt mit verminderter Wandstärke gebildet wird, um das Spritzloch zu definieren.
  5. Einrichtung nach einem der Ansprüche 1 bis 4, worin die längliche V-förmige Kerbe, die das Spritzloch definiert, eine elliptische V-förmige Kerbe ist.
EP19900308206 1989-07-26 1990-07-26 Pneumatische Niederdruckspritzpistole Expired - Lifetime EP0411830B1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP1989087805U JPH0711802Y2 (ja) 1989-07-26 1989-07-26 内外部混合併用スプレーガン
JP87805/89U 1989-07-26
JP1989087804U JPH0711805Y2 (ja) 1989-07-26 1989-07-26 スプレーガンの調整バルブ
JP1193626A JPH0724800B2 (ja) 1989-07-26 1989-07-26 低圧微粒化スプレーガン
JP87804/89U 1989-07-26
JP193626/89 1989-07-26

Publications (3)

Publication Number Publication Date
EP0411830A2 EP0411830A2 (de) 1991-02-06
EP0411830A3 EP0411830A3 (en) 1991-10-23
EP0411830B1 true EP0411830B1 (de) 1995-11-22

Family

ID=27305606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900308206 Expired - Lifetime EP0411830B1 (de) 1989-07-26 1990-07-26 Pneumatische Niederdruckspritzpistole

Country Status (2)

Country Link
EP (1) EP0411830B1 (de)
DE (1) DE69023711T2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101963244A (zh) * 2010-10-12 2011-02-02 中冶南方工程技术有限公司 多喷枪进水型锥形环缝调节阀
WO2013071398A1 (en) * 2011-11-16 2013-05-23 Csl Silicones Inc. Applicator for spraying elastomeric materials

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2039086A1 (en) * 1991-03-26 1992-09-27 Thomas Barty Spray gun nozzle head
CA2431266A1 (en) * 2001-06-22 2003-01-03 Kabushiki Kaisha Powrex Powder processing apparatus
CN103272728B (zh) * 2013-06-09 2017-01-25 潍柴动力股份有限公司 Scr系统及其尿素喷头
CN107694782B (zh) * 2017-11-06 2022-11-08 台州超田气动工具有限公司 喷枪
CN113477430B (zh) * 2021-07-06 2023-12-12 浙江小伦智能制造股份有限公司 防结须的雾化喷枪

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152046A (en) * 1938-04-04 1939-03-28 Binks Mfg Co Air nozzle for flat spraying appliances
US2569251A (en) * 1946-01-17 1951-09-25 Colorator Ab Spraying device and operation thereof
US2646314A (en) * 1950-10-19 1953-07-21 Vilbiss Co Spray nozzle
FR2350887A1 (fr) * 1976-05-10 1977-12-09 Air Ind Buse de pulverisation de produits liquides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101963244A (zh) * 2010-10-12 2011-02-02 中冶南方工程技术有限公司 多喷枪进水型锥形环缝调节阀
CN101963244B (zh) * 2010-10-12 2013-02-06 中冶南方工程技术有限公司 多喷枪进水型锥形环缝调节阀
WO2013071398A1 (en) * 2011-11-16 2013-05-23 Csl Silicones Inc. Applicator for spraying elastomeric materials
US8524312B2 (en) 2011-11-16 2013-09-03 Csl Silicones Inc. Applicator for spraying elastomeric materials

Also Published As

Publication number Publication date
DE69023711D1 (de) 1996-01-04
EP0411830A2 (de) 1991-02-06
EP0411830A3 (en) 1991-10-23
DE69023711T2 (de) 1996-05-30

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