WO2016070870A1 - Spray gun for spraying liquids - Google Patents

Spray gun for spraying liquids Download PDF

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Publication number
WO2016070870A1
WO2016070870A1 PCT/DE2015/100464 DE2015100464W WO2016070870A1 WO 2016070870 A1 WO2016070870 A1 WO 2016070870A1 DE 2015100464 W DE2015100464 W DE 2015100464W WO 2016070870 A1 WO2016070870 A1 WO 2016070870A1
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WO
WIPO (PCT)
Prior art keywords
spray gun
air
compressor
air flow
nozzle
Prior art date
Application number
PCT/DE2015/100464
Other languages
German (de)
French (fr)
Inventor
Björn Buchholz
Michael Pfingstgraef
Original Assignee
G-Mate Ag
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 G-Mate Ag filed Critical G-Mate Ag
Publication of WO2016070870A1 publication Critical patent/WO2016070870A1/en

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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
    • B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2416—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • 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
    • B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun

Definitions

  • the present invention relates to a spray gun for atomizing liquids, especially high-viscosity paints or varnishes, which is supplied by means of an air flow and adjustable through a trigger handle nozzle needle of a spray nozzle, wherein the air flow through a spray gun associated device for generating the air flow and whose electric drive can be generated and the atomizer nozzle can be supplied via an air channel within the spray gun.
  • electrically operated spray guns in the home improvement sector produce with a fan, an air flow of about 800 l / min at a nozzle internal pressure of about 0.15 bar.
  • a high volume of air is achieved with these blowers, the atomization of highly viscous liquids and the application of a finer color film are clearly limited due to the low nozzle internal pressure, in particular in terms of quality.
  • the present invention is based on the object of providing a spray gun of the type mentioned above, which eliminates the aforementioned disadvantages and which is suitable for significantly improving the atomization of highly viscous liquids in terms of quality. According to the preceding object is achieved according to the preamble of claim 1 protection in conjunction with the characterizing features. Advantageous embodiments and further developments of the spray gun according to the invention are specified in the dependent subclaims.
  • a spray gun of the type mentioned is characterized in that the means for generating the air flow comprises a centrifugal compressor with a compressor wheel, which is enclosed by a spiral compressor housing with a helical flow channel.
  • the air is advantageously sucked axially through an air filter on the rear wall of the housing of the spray gun and accelerated in the compressor wheel at preferably about 50,000 revolutions per minute.
  • the air leaves the compressor wheel in the radial direction, the air pressure being increased as a result of the deceleration of the air velocity within the helical flow channel and the continuous widening of the flow cross section up to the compressor outlet.
  • the compressed air then flows through the air duct as far as the atomizer nozzle where it generates an internal nozzle pressure of preferably 0.3-0.5 bar.
  • the air filter prevents the suction of dirt particles and other foreign bodies.
  • an electrical drive of the device preferably acts a 24 volt or 230/1 10 volt electric motor, which is mounted within the housing of the spray gun.
  • the power supply of the spray gun is advantageously wired or via at least one battery (preferably an accumulator).
  • FIG. 1 shows the spray gun according to the invention in a side view
  • FIG. 2 the spray gun in front view
  • FIG. 1 shows the spray gun according to the invention in a side view
  • FIG. 2 the spray gun in front view
  • the device for generating the air flow in plan view The device for generating the air flow in plan view.
  • the spray gun 1 comprises a nozzle needle which can be adjusted by means of a trigger bracket 3 inside the liquid container 4, by means of which liquid 2 is supplied to a spray nozzle 5.
  • the air stream 6 is generated by a device 7 associated with the spray gun 1 and its electric drive 8 and fed to the atomizer nozzle 5 via an air channel 9 within the spray gun 1.
  • the liquid is supplied to the atomizing nozzle 5 via a material supply device 10 provided on the spray gun 1, to which a liquid container 4 can be arranged reversibly.
  • a material supply device 10 provided on the spray gun 1, to which a liquid container 4 can be arranged reversibly.
  • the air 6a is advantageously sucked through an air filter 12 on the rear wall of the housing 1 1 by means of the compressor wheel 13 (see Figure 3) axially into the device 7 and accelerated with the compressor wheel 13.
  • the air 6a flows through the air channel 9 in the direction of the atomizer nozzle 5, wherein the outflowing air 6a generates a negative pressure at the nozzle outlet, which sucks the liquid 2 from the liquid container 4, atomizes and finally feeds the workpiece.
  • the device 7 is the lower (more pronounced) part of the inner housing of the spray gun 1 in its diameter substantially adapted and integrated as possible to save space in the housing 1 1.
  • the compressor outlet 14a on the compressor housing 14 preferably points upward in the direction of the air channel 6.
  • the electric drive 8 is advantageously mounted on the front side in the housing 1 1 in order to ensure the most balanced possible weight balance of the spray gun 1.
  • the advantages of the device 7 according to the invention on the spray gun 1 are in particular that it is built very small, lightweight and compact despite the nozzle internal pressure generated, the compressor housing 14 is particularly preferably made of a plastic by injection molding inexpensively.
  • the device 7 is therefore particularly suitable for electric, hand-held spray guns 1 of the type mentioned.
  • the spray gun according to the invention is not limited in its execution to the above-mentioned preferred embodiments. Rather, a variety of design variations are possible, which make use of the solution shown even with fundamentally different type of execution. List of reference numbers

Abstract

The invention relates to a spray gun (1) for spraying liquids (2) which are guided to an atomizing nozzle (5) by means of an air flow (6) and an injector needle, inside a liquid container, which can be adjusted by a trigger guard (3), (4), said air flow (6) can be produced by a device (7) for producing the air flow (6), said device being associated with the spray gun (1) and the electric drive (8) thereof and the air flow can be guided to the atomizing nozzle (5) via the air channel (9) inside the spray gun (1). The invention is characterized such that the device (7) for generating the air flow (6) comprises a radial compressor with a compressor wheel (13) which is surrounded by a spiral-shaped compressor housing (14) having a screw-shaped flow channel.

Description

Spritzpistole zum Zerstäuben von Flüssigkeiten  Spray gun for atomising liquids
BESCHREIBUNG DESCRIPTION
Technisches Gebiet Technical area
[0001 ] Die vorliegende Erfindung betrifft eine Spritzpistole zum Zerstäuben von Flüssigkeiten, vornehmlich hochviskoser Farben oder Lacke, die mittels eines Luftstroms und einer durch einen Abzugbügel verstellbaren Düsennadel einer Zerstäuberdüse zugeführt wird, wobei der Luftstrom durch eine der Spritzpistole zugeordnete Einrichtung zur Erzeugung des Luftstroms und deren elektrischen Antrieb erzeugbar und der Zerstäuberdüse über einen Luftkanal innerhalb der Spritzpistole zuführbar ist. The present invention relates to a spray gun for atomizing liquids, especially high-viscosity paints or varnishes, which is supplied by means of an air flow and adjustable through a trigger handle nozzle needle of a spray nozzle, wherein the air flow through a spray gun associated device for generating the air flow and whose electric drive can be generated and the atomizer nozzle can be supplied via an air channel within the spray gun.
Stand der Technik State of the art
[0002] Nach dem Stand der Technik bekannte, elektrisch betriebene Spritzpistolen im Heimwerkerbereich erzeugen mit einem Gebläse einen Luftstrom von ca. 800 l/min bei einem Düseninnendruck von ca. 0,15 bar. Mit diesen Gebläsen wird zwar ein hohes Luftvolumen erzielt, der Zerstäubung von hoch viskosen Flüssigkeiten sowie der Auftragung eines feineren Farbfilms sind aber aufgrund des geringen Düseninnendrucks insbesondere in qualitativer Hinsicht deutliche Grenzen gesetzt. According to the prior art, electrically operated spray guns in the home improvement sector produce with a fan, an air flow of about 800 l / min at a nozzle internal pressure of about 0.15 bar. Although a high volume of air is achieved with these blowers, the atomization of highly viscous liquids and the application of a finer color film are clearly limited due to the low nozzle internal pressure, in particular in terms of quality.
Darstellung der Erfindung Presentation of the invention
[0003] Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, eine Spritzpistole der eingangs genannten Art zu schaffen, welche die vorge- nannten Nachteile ausräumt und welche geeignet ist, die Zerstäubung auch von hoch viskosen Flüssigkeiten in qualitativer Hinsicht deutlich zu verbessern. [0004] Erfindungsgemäß wird die voranstellende Aufgabe gemäß dem Oberbegriff des Schutzanspruchs 1 in Verbindung mit den kennzeichnenden Merkmalen gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Spritzpistole sind in den abhängigen Unteran- Sprüchen angegeben. [0003] The present invention is based on the object of providing a spray gun of the type mentioned above, which eliminates the aforementioned disadvantages and which is suitable for significantly improving the atomization of highly viscous liquids in terms of quality. According to the preceding object is achieved according to the preamble of claim 1 protection in conjunction with the characterizing features. Advantageous embodiments and further developments of the spray gun according to the invention are specified in the dependent subclaims.
[0005] Erfindungsgemäß ist eine Spritzpistole der eingangs genannten Art dadurch gekennzeichnet, dass die Einrichtung zur Erzeugung des Luftstroms einen Radialverdichter mit einem Verdichterrad umfasst, das von einem spiralförmigen Verdichtergehäuse mit einem schneckenförmigen Strömungskanal umschlossen ist. According to the invention a spray gun of the type mentioned is characterized in that the means for generating the air flow comprises a centrifugal compressor with a compressor wheel, which is enclosed by a spiral compressor housing with a helical flow channel.
[0006] Durch die Drehzahl des Verdichterrades wird die Luft vorteilhafterweise axial durch einen Luftfilter an der Rückwand des Gehäuses der Spritzpistole angesaugt und im Verdichterrad bei vorzugsweise ca. 50.000 Umdrehungen pro Minute beschleunigt. By the speed of the compressor wheel, the air is advantageously sucked axially through an air filter on the rear wall of the housing of the spray gun and accelerated in the compressor wheel at preferably about 50,000 revolutions per minute.
[0007] Die Luft verlässt das Verdichterrad in radialer Richtung, wobei durch die Verzögerung der Luftgeschwindigkeit innerhalb des schnecken- förmigen Strömungskanals und die stetige Erweiterung des Strömungsquerschnitts bis zum Verdichteraustritt der Luftdruck erhöht wird. The air leaves the compressor wheel in the radial direction, the air pressure being increased as a result of the deceleration of the air velocity within the helical flow channel and the continuous widening of the flow cross section up to the compressor outlet.
[0008] Die verdichtete Luft strömt sodann durch den Luftkanal bis zur Zerstäuberdüse und erzeugt dort einen Düseninnendruck von vorzugswei- se 0,3 - 0,5 bar. The compressed air then flows through the air duct as far as the atomizer nozzle where it generates an internal nozzle pressure of preferably 0.3-0.5 bar.
[0009] Der Luftfilter verhindert das Einsaugen von Schmutzpartikeln und anderen Fremdkörpern. [0010] Als elektrischer Antrieb der Einrichtung fungiert vorzugsweise ein 24 Volt oder 230/1 10 Volt Elektromotor, welcher innerhalb des Gehäuses der Spritzpistole angebracht ist. Die Stromversorgung der Spritzpistole erfolgt vorteilhaft kabelgebunden oder über mindestens eine Batterie (vorzugsweise einen Akkumulator). Kurzbeschreibung der Zeichnungen The air filter prevents the suction of dirt particles and other foreign bodies. As an electrical drive of the device preferably acts a 24 volt or 230/1 10 volt electric motor, which is mounted within the housing of the spray gun. The power supply of the spray gun is advantageously wired or via at least one battery (preferably an accumulator). Brief description of the drawings
[001 1 ] Weitere Ziele, Merkmale, Vorteile und Anwendungsmöglichkeiten der erfindungsgemäßen Spritzpistole ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels anhand der Zeichnungen. Dabei bilden alle beschriebenen und/oder bildlich dargestellten Merkmale für sich oder in beliebiger Kombination den Gegenstand der Erfindung, unabhängig von der Zusammenfassung in einzelnen Ansprüchen oder deren Rückbeziehung. [001 1] Other objects, features, advantages and possible applications of the spray gun according to the invention will become apparent from the following description of an embodiment with reference to the drawings. All described and / or illustrated features, alone or in any combination form the subject matter of the invention, regardless of the summary in individual claims or their dependency.
[0012] In den Zeichnungen zeigen In the drawings show
[0013] Fig.l die erfindungsgemäße Spritzpistole in der Seitenansicht; [0014] Fig.2 die Spritzpistole in der Frontansicht; [0013] FIG. 1 shows the spray gun according to the invention in a side view; FIG. 2 the spray gun in front view; FIG.
[0015] Fig.3 die Einrichtung zur Erzeugung des Luftstroms in der Draufsicht. The device for generating the air flow in plan view.
Ausführung der Erfindung Embodiment of the invention
[001 6] Wie aus Fig.l ersichtlich, umfasst die Spritzpistole 1 eine mittels eines Abzugbügels 3 verstellbare Düsennadel innerhalb des Flüssigkeitsbehälter 4, mittels der einer Zerstäuberdüse 5 Flüssigkeit 2 zugeführt wird. Der Luftstrom 6 wird durch eine der Spritzpistole 1 zugeordnete Einrichtung 7 und deren elektrischen Antrieb 8 erzeugt und der Zerstäuberdüse 5 über einen Luftkanal 9 innerhalb der Spritzpistole 1 zugeführt. [001 6] As can be seen from FIG. 1, the spray gun 1 comprises a nozzle needle which can be adjusted by means of a trigger bracket 3 inside the liquid container 4, by means of which liquid 2 is supplied to a spray nozzle 5. The air stream 6 is generated by a device 7 associated with the spray gun 1 and its electric drive 8 and fed to the atomizer nozzle 5 via an air channel 9 within the spray gun 1.
[001 7] Die Flüssigkeit wird der Zerstäuberdüse 5 über eine an der Spritzpistole 1 vorgesehene Materialzuführungseinrichtung 10 zugeführt, an der ein Flüssigkeitsbehälter 4 reversibel anordbar ist. [0018] Wie aus Fig.l ersichtlich, wird die Luft 6a vorteilhaft durch einen Luftfilter 12 an der Rückwand des Gehäuses 1 1 mittels des Verdichterrades 13 (siehe Fig.3) axial in die Einrichtung 7 gesaugt und mit dem Verdichterrad 13 beschleunigt. [001 7] The liquid is supplied to the atomizing nozzle 5 via a material supply device 10 provided on the spray gun 1, to which a liquid container 4 can be arranged reversibly. As can be seen from Fig.l, the air 6a is advantageously sucked through an air filter 12 on the rear wall of the housing 1 1 by means of the compressor wheel 13 (see Figure 3) axially into the device 7 and accelerated with the compressor wheel 13.
[0019] Die Luft 6a strömt durch den Luftkanal 9 in Richtung Zerstäuberdüse 5, wobei die ausströmende Luft 6a am Düsenausgang einen Unterdruck erzeugt, der die Flüssigkeit 2 aus dem Flüssigkeitsbehälter 4 saugt, zerstäubt und schließlich dem Werkstück zuführt. The air 6a flows through the air channel 9 in the direction of the atomizer nozzle 5, wherein the outflowing air 6a generates a negative pressure at the nozzle outlet, which sucks the liquid 2 from the liquid container 4, atomizes and finally feeds the workpiece.
[0020] Wie aus Fig.2 ersichtlich, ist die Einrichtung 7 dem unteren (etwas ausgeprägterem) Teil des Innengehäuses der Spritzpistole 1 in ihrem Durchmesser im Wesentlichen angepasst und möglichst Platz sparend in das Gehäuse 1 1 integriert. Der Verdichteraustritt 14a am Verdichterge- häuse 14 weist in Richtung des Luftkanals 6 vorzugsweise nach oben. Der elektrische Antrieb 8 ist vorteilhaft frontseitig in dem Gehäuse 1 1 montiert, um eine möglichst ausgeglichene Gewichtsbalance der Spritzpistole 1 zu gewährleisten. [0021 ] Die Vorteile der erfindungsgemäßen Einrichtung 7 an der Spritzpistole 1 bestehen insbesondere darin, dass diese trotz des erzeugten Düsen- innendrucks sehr klein, leicht und kompakt gebaut ist, wobei das Verdichtergehäuse 14 besonders bevorzugt aus einem Kunststoff mittels Spritzguss kostengünstig hergestellt ist. Die Einrichtung 7 eignet sich demnach vor allem für elektrische, handgeführte Spritzpistolen 1 der eingangs genannten Art. As can be seen from Figure 2, the device 7 is the lower (more pronounced) part of the inner housing of the spray gun 1 in its diameter substantially adapted and integrated as possible to save space in the housing 1 1. The compressor outlet 14a on the compressor housing 14 preferably points upward in the direction of the air channel 6. The electric drive 8 is advantageously mounted on the front side in the housing 1 1 in order to ensure the most balanced possible weight balance of the spray gun 1. The advantages of the device 7 according to the invention on the spray gun 1 are in particular that it is built very small, lightweight and compact despite the nozzle internal pressure generated, the compressor housing 14 is particularly preferably made of a plastic by injection molding inexpensively. The device 7 is therefore particularly suitable for electric, hand-held spray guns 1 of the type mentioned.
[0022] Die erfindungsgemäße Spritzpistole beschränkt sich in ihrer Ausführung nicht auf die vorstehend angegebenen bevorzugten Ausfüh- rungsformen. Vielmehr sind eine Vielzahl von Ausgestaltungsvariationen denkbar, welche von der dargestellten Lösung auch bei grundsätzlich anders gearteter Ausführung Gebrauch machen. Liste der Bezugsziffern The spray gun according to the invention is not limited in its execution to the above-mentioned preferred embodiments. Rather, a variety of design variations are possible, which make use of the solution shown even with fundamentally different type of execution. List of reference numbers
1 Spritzpistole 1 spray gun
2 Flüssigkeit  2 liquid
3 Abzugbügel 3 trigger guards
4 Flüssigkeitsbehälter  4 liquid containers
5 Zerstäuberdüse  5 atomizer nozzle
6 Luftstrom  6 airflow
6a Luft 6a air
7 Einrichtung zur Erzeugung des Luftstroms7 Device for generating the airflow
8 elektrischer Antrieb 8 electric drive
9 Luftkanal  9 air duct
10 Materialzuführungseinrichtung  10 material supply device
1 1 Gehäuse  1 1 housing
12 Luftfilter 12 air filters
13 Verdichterrad  13 compressor wheel
14 Verdichtergehäuse  14 compressor housing
14a Verdichteraustritt 14a compressor outlet

Claims

Spritzpistole zum Zerstäuben von Flüssigkeiten Spray gun for atomizing liquids
ANSPRÜCHE EXPECTATIONS
Spritzpistole ( 1 ) zum Zerstäuben von Flüssigkeiten Spray gun (1) for atomizing liquids
(2), die mittels eines Luftstroms (6) und einer durch einen Abzugbügel (2), by means of an air stream (6) and one through a trigger guard
(3) verstellbaren Düsennadel innerhalb eines Flüssigkeitsbehälters (3) adjustable nozzle needle within a liquid container
(4) einer Zerstäuberdüse (5) zugeführt wird, wobei der Luftstrom (6) durch eine der Spritzpistole ( 1 ) zugeordnete Einrichtung (7) zur Erzeugung des Luftstroms (6) und deren elektrischen Antrieb (8) erzeugbar und der Zerstäuberdüse (4) is fed to an atomizer nozzle (5), the air flow (6) being generated by a device (7) assigned to the spray gun (1) for generating the air flow (6) and its electric drive (8) and the atomizer nozzle
(5) über einen Luftkanal (9) innerhalb der Spritzpistole ( 1 ) zuführbar ist, (5) can be supplied via an air duct (9) within the spray gun (1),
dadurch gekennzeichnet, dass characterized in that
die Einrichtung (7) zur Erzeugung des Luftstroms (6) einen Radialverdichter mit einem Verdichterrad ( 13) umfasst, das von einem spiralförmigen Verdichtergehäuse ( 14) mit einem schneckenförmigen Strömungskanal umschlossen ist. the device (7) for generating the air flow (6) comprises a radial compressor with a compressor wheel (13) which is enclosed by a spiral-shaped compressor housing (14) with a helical flow channel.
Spritzpistole ( 1 ) nach Anspruch 1 , Spray gun (1) according to claim 1,
dadurch gekennzeichnet, characterized,
dass die Luft (6g) durch einen Luftfilter (12) mittels des Verdichterro- des (13) gxigl in die Einrichtung (7) gesgugt und mit dem Verdich- terrgd (13) beschleunigt wird. that the air (6g) is sucked through an air filter (12) into the device (7) using the compressor rod (13) and accelerated with the compressor rod (13).
Spritzpistole ( 1 ) noch Anspruch 2, Spray gun ( 1 ) still claim 2,
dgdurch gekennzeichnet, marked by dg,
dgss die Einrichtung (7) dem unteren Teil des Innengehäuses der Spritzpistole ( 1 ) in ihrem Durchmesser im Wesentlichen ongepgsst ist. dgss the device (7) is essentially matched in diameter to the lower part of the inner housing of the spray gun (1).
Spritzpistole ( 1 ) noch den Ansprüchen 2 und 3, Spray gun (1) also claims 2 and 3,
dgdurch gekennzeichnet, marked by dg,
dgss der Verdichtergustritt (14) in Richtung des Luftkgngls (9) ngch oben weist. Spritzpistole (1 ) nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dgss the compressor cast iron step (14) points in the direction of the air intake (9) upwards. Spray gun (1) according to one of the preceding claims, characterized in
dass der elektrische Antrieb (8) frontseitig in dem Gehäuse montiert ist. that the electric drive (8) is mounted in the front of the housing.
6. Spritzpistole ( 1 ) nach Anspruch 1 , 6. Spray gun (1) according to claim 1,
dadurch gekennzeichnet, characterized,
dass dgs Verdichterrad (14) guf circg 50.000 Umdrehungen pro Mi- nute beschleunigt. that the compressor wheel (14) accelerates to around 50,000 revolutions per minute.
7. Spritzpistole ( 1 ) noch Anspruch 1 , 7. Spray gun (1) also claim 1,
dgdurch gekennzeichnet, marked by dg,
dgss die verdichtete Luft (6g) durch den Luftkgngl (9) bis zur Zer- stäuberdüse (5) strömt und dort einen Düseninnendruck von 0,3 - dgss the compressed air (6g) flows through the air valve (9) to the atomizer nozzle (5) and there an internal nozzle pressure of 0.3 -
0,5 bor erzeugt. 0.5 boron produced.
PCT/DE2015/100464 2014-11-06 2015-11-03 Spray gun for spraying liquids WO2016070870A1 (en)

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DE102014116148.3 2014-11-06
DE102014116148.3A DE102014116148A1 (en) 2014-11-06 2014-11-06 Spray gun for atomising liquids

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WO1998047627A1 (en) * 1997-04-18 1998-10-29 Ryobi North America, Inc. Hand-held blower
WO2003004172A1 (en) * 2001-07-03 2003-01-16 Hermann Rugen Paint pistol with a compressed air generator
EP1602411A2 (en) * 2004-06-04 2005-12-07 J. Wagner GmbH Spray gun
EP2664387A1 (en) * 2011-01-12 2013-11-20 Fenghua Weilder Electric Appliance Co., Ltd Handheld electric spray gun
WO2013072500A1 (en) * 2011-11-18 2013-05-23 G-Mate Ag Replaceable paint channel

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Publication number Priority date Publication date Assignee Title
WO2023006861A1 (en) * 2021-07-30 2023-02-02 J. Wagner Gmbh Hand-held paint sprayer

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