EP0040334B1 - Water nozzle with self-cleaning means - Google Patents

Water nozzle with self-cleaning means Download PDF

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Publication number
EP0040334B1
EP0040334B1 EP81103181A EP81103181A EP0040334B1 EP 0040334 B1 EP0040334 B1 EP 0040334B1 EP 81103181 A EP81103181 A EP 81103181A EP 81103181 A EP81103181 A EP 81103181A EP 0040334 B1 EP0040334 B1 EP 0040334B1
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EP
European Patent Office
Prior art keywords
water
piston
inlet
section
boring
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
Application number
EP81103181A
Other languages
German (de)
French (fr)
Other versions
EP0040334A3 (en
EP0040334A2 (en
Inventor
Franz Ing. Grad. Kemper
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of EP0040334A2 publication Critical patent/EP0040334A2/en
Publication of EP0040334A3 publication Critical patent/EP0040334A3/en
Application granted granted Critical
Publication of EP0040334B1 publication Critical patent/EP0040334B1/en
Expired 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
    • B05B1/30—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
    • B05B1/3006—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 the controlling element being actuated by the pressure of the fluid to be sprayed
    • 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
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
    • B05B15/522—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using cleaning elements penetrating the discharge openings
    • B05B15/5223—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using cleaning elements penetrating the discharge openings the cleaning element, e.g. a needle, and the discharge opening being movable relative to each other in a direction substantially parallel to the flow of liquid or other fluent material through said opening
    • B05B15/5225—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using cleaning elements penetrating the discharge openings the cleaning element, e.g. a needle, and the discharge opening being movable relative to each other in a direction substantially parallel to the flow of liquid or other fluent material through said opening the cleaning element being located upstream of the discharge opening or being actuated upstream therefrom
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/187—Mining picks; Holders therefor with arrangement of fluid-spraying nozzles

Definitions

  • the invention relates to a water nozzle for dust control, in particular on cutting rollers, essentially consisting of a housing which can be screwed into a water supply line and has a collecting bore on the water inlet side and a central bore of small diameter on the water outlet side.
  • a water nozzle is shown, in which in the collecting hole on the water inlet side in front of the nozzle to prevent a possible A strainer is used to block the nozzle due to contamination. It can be assumed that the corresponding impurities are collected within the sieve body, but that the content of the sieve body ultimately means that an adequate atomization of water can no longer be carried out. The exchange of the screen body is associated with corresponding downtimes of the extraction machine.
  • the invention has now set itself the task of creating a water nozzle for dust control, in particular on cutting rollers, which avoids the blockages while avoiding the above-mentioned disadvantages and largely guarantees the functionality of the nozzles and which is also simple and inexpensive to manufacture.
  • the collecting bore is divided into two sections, in that a stepped guide sleeve with a piston which is stepped several times in the axial direction and can be preloaded via a spring is arranged in the section of the receiving bore of the housing and can be screwed into it, and that the Guide sleeve consists of a channel-like inlet on the water inlet side and a subsequent extension and the piston arranged in the guide sleeve has a slight widening in the inlet and a larger widening within the extension, the widening of the piston forming a narrowed annular gap with the inlet when water enters.
  • the guide sleeve consists of a channel-like feed on the water inlet side and a subsequent extension and the piston arranged in the guide sleeve has a slight widening in the feed and a strong widening within the extension.
  • the technical advantage of the invention is to be seen in particular in the fact that the high cost of downtimes, which have to be carried out by the constantly necessary cleaning of the water nozzles, are substantially reduced since the nozzles according to the invention are equipped with a self-cleaning device.
  • the water nozzle shown in section in the drawing consists essentially of a housing 1 having an external thread 3, in which a central bore is made.
  • the collecting hole is divided into two sections 2 and 17 with different diameters.
  • a guide sleeve 5 can be screwed into section 2 of the collecting bore by means of a further thread 4.
  • the thread 3 is provided for connection to a water supply line.
  • the guide sleeve 5 has a narrowed channel-like guide 7 on the water inlet side and then an extension 8.
  • the extension 8 merges into the section 17 within the housing 1.
  • the section 17 as part of the central bore is provided with a step 15 in relation to the extension 8.
  • a multiply graduated piston 6 is arranged within the guide sleeve 5.
  • the piston 6 At its upper end arranged on the water inlet side, the piston 6 has a slight reinforcement 9 and a larger reinforcement within the extension 8 10 on.
  • the piston 6 At the lower end of the piston 6 on the water outlet side, the piston 6 has a piston stub 14.
  • the piston 6 can be pretensioned by means of a spiral-shaped spring 13.
  • In the reinforcement 10 there is a horizontal bore 11 and a bore 12 extending vertically through the piston stub 14.
  • the spring 13 is mounted within the section 17 in the step 16, which is designed as an abutment.
  • the upper end of the spring is guided through the piston stub 14.
  • the central bore 18 connects to the section 17 on the water outlet side.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Nozzles (AREA)

Description

Die Erfindung betrifft eine Wasserdüse zur Staubbekämpfung, insbesondere an Schrämwalzen, im wesentlichen aus einem in eine Wasserzuführungsleitung einschraubbaren und auf der Wassereintrittsseite eine Auffangbohrung sowie auf der Wasseraustrittsseite eine zentrale Bohrung geringen Durchmessers aufweisenden Gehäuse besteht.The invention relates to a water nozzle for dust control, in particular on cutting rollers, essentially consisting of a housing which can be screwed into a water supply line and has a collecting bore on the water inlet side and a central bore of small diameter on the water outlet side.

Der wesentliche Nachteil derartiger eingangs genannter Wasserdüsen liegt in der ständigen Verstopfung durch innerhalb der Wasserzuführungsleitungen anfallenden festen Bestandteile, wie beispielsweise Rost. Da das Reinigen solcher Düsen bzw. das Beseitigen der festen Bestandteile durch Herausdrehen der Wassrdüsen und Durchspülen mit Wasser erfolgt, sind mit diesem Vorgang jeweils Ausfallzeiten der Schrämwalze und somit hohe Kosten und Arbeitsaufwand verbunden.The main disadvantage of such water nozzles mentioned at the outset is the constant blockage caused by solid constituents, such as rust, which accumulate within the water supply lines. Since the cleaning of such nozzles or the removal of the solid constituents takes place by unscrewing the water nozzles and flushing with water, downtime of the cutting roller and thus high costs and labor are associated with this process.

Eine Verbesserung hinsichtlich der Vermeidung von Verstopfungen und eine Erleichterung in der Durchführung der Reinigung ist mit einer Wasserdüse erreicht worden, welche innerhalb der Auffangbohrung und in diese eingepresst, wassereintrittsseitig einen Einsatz und zwischen der zentralen Bohrung und dem Einsatz eine Spülkammer aufweist. Die Sprühkammer soll eine zusätzliche Verwirbelung des Wassers und somit ein Festsetzen des Schmutzes im Bereich der Düsen vermeiden. Darüber hinaus soll die Sprühkammer eine Erleichterung bei der Reinigung dahingehend mit sich bringen, dass die Reinigungsarbei mit einem dünnen Draht durch die zentrale Bohrung hindurch vorgenommen werden kann. Die letztere Überlegung hat sich jedoch in der Praxis nicht so verwirklichen lassen, dass nicht auch Teile des Sprühraumes verschmutzen und dieser Schmutz beim Reinigungsversuch in die Bohrung des Einsatzes zurückgedrängt wird. Weiterhin ist in der EP-A-10534, Figur 2, im Rahmen einer Einrichtung zum Kühlen der Meissel des insbesondere von wenigstens einem routierenden Schrämkopf gebildeten Schrämwerkzeuges einer Schrämmaschine eine Wasserdüse abgebildet, bei welcher in der wassereintrittsseitigen Auffangbohrung vor der Düse zur Verhinderung einer evtl. Verstopfung der Düse durch Verunreinigungen ein Siebkörper eingesetzt ist. Zwar kann davon ausgegangen werden, dass innerhalb des Siebkörpers die entsprechenden Verunreinigungen aufgefangen werden, dass aber der Inhalt des Siebkörpers letztlich dazu führt, dass eine ausreichende Verdüsung von Wasser nicht mehr durchführbar ist. Der Austausch des Siebkörpers ist mit entsprechenden Ausfallzeiten der Gewinnungsmaschine verbunden.An improvement with regard to the avoidance of blockages and a simplification in carrying out the cleaning has been achieved with a water nozzle which has an insert inside the collecting bore and pressed into it, has an insert on the water inlet side and a rinsing chamber between the central bore and the insert. The spray chamber is intended to avoid additional swirling of the water and thus the dirt in the area of the nozzles. In addition, the spray chamber should facilitate cleaning in that the cleaning work can be carried out with a thin wire through the central bore. In practice, however, the latter consideration has not been able to be realized in such a way that parts of the spray chamber do not become dirty and this dirt is pushed back into the bore of the insert during the cleaning attempt. Furthermore, in EP-A-10534, FIG. 2, as part of a device for cooling the chisels of the cutting tool of a cutting machine, which is formed in particular by at least one routing cutting head, a water nozzle is shown, in which in the collecting hole on the water inlet side in front of the nozzle to prevent a possible A strainer is used to block the nozzle due to contamination. It can be assumed that the corresponding impurities are collected within the sieve body, but that the content of the sieve body ultimately means that an adequate atomization of water can no longer be carried out. The exchange of the screen body is associated with corresponding downtimes of the extraction machine.

Die Erfindung hat sich nunmehr die Aufgabe gestellt, eine Wasserdüse zur Staubbekämpfung insbesondere an Schrämwalzen zu schaffen, die unter Vermeidung der oben genannten Nachteile die Verstopfungen vermeidet und eine Funktionsfähigkeit der Düsen weitgehendst gewährleistet und die darüber hinaus in der Herstellung einfach und kostengünstig ist.The invention has now set itself the task of creating a water nozzle for dust control, in particular on cutting rollers, which avoids the blockages while avoiding the above-mentioned disadvantages and largely guarantees the functionality of the nozzles and which is also simple and inexpensive to manufacture.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Auffangbohrung in zwei Abschnitte unterteilt ausgebildet ist, dass in dem Abschnitt der Auffangbohrung des Gehäuses und in dieses einschraubbar eine abgestufte Führungshülse mit einem in achsialer Richtung mehrfach abgestuften und über eine Feder vorspannbaren Kolben angeordnet ist und dass die Führungshülse aus einer wassereintrittsseitig kanalartigen Zuführung und einer anschliessenden Erweiterung besteht und der in der Führungshülse angeordnete Kolben in der Zuführung eine geringfügige und innerhalb der Erweiterung eine stärkere Verbreiterung aufweist, wobei die Verbreiterung des Kolbens mit der Zuführung bei Wassereintritt einen verengten Ringspalt bilden.This object is achieved according to the invention in that the collecting bore is divided into two sections, in that a stepped guide sleeve with a piston which is stepped several times in the axial direction and can be preloaded via a spring is arranged in the section of the receiving bore of the housing and can be screwed into it, and that the Guide sleeve consists of a channel-like inlet on the water inlet side and a subsequent extension and the piston arranged in the guide sleeve has a slight widening in the inlet and a larger widening within the extension, the widening of the piston forming a narrowed annular gap with the inlet when water enters.

Es erweist sich als vorteilhaft, dass die Führungshülse aus einer wassereintrittsseitig kanalartigen Zuführung und einer anschliessenden Erweiterun besteht und der in der Führungshülse angeordnete Kolben in der Zuführung eine geringfügige und innerhalb der Erweiterung eine starke Verbreiterung aufweist.It has proven to be advantageous that the guide sleeve consists of a channel-like feed on the water inlet side and a subsequent extension and the piston arranged in the guide sleeve has a slight widening in the feed and a strong widening within the extension.

Weiterhin erweist es sich im Rahmen der Erfindung als besonders vorteilhaft, dass die Verbreiterung des Kolbens mit zusätzlichen Bohrungen versehen ist.Furthermore, it proves to be particularly advantageous in the context of the invention that the widening of the piston is provided with additional bores.

Der technische Vorteil der Erfindung ist insbesondere darin zu sehen, dass die hohen Kosten verursachenden Ausfallzeiten, die durch das ständig erforderliche Reinigen der Wasserdüsen vorzunehmen sind, um wesentliche Anteile gemindert werden, da die erfindungsgemässen Düsen mit einer Selbstreinigungsvorrichtung ausgerüstet sind.The technical advantage of the invention is to be seen in particular in the fact that the high cost of downtimes, which have to be carried out by the constantly necessary cleaning of the water nozzles, are substantially reduced since the nozzles according to the invention are equipped with a self-cleaning device.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung anhand eines schematisiert wiedergegebenen Schnittes durch eine Düse dargestellt und wird im folgenden näher erläutert.An embodiment of the invention is shown in the drawing using a schematically represented section through a nozzle and is explained in more detail below.

Die in der Zeichnung im Schnitt dargestellte Wasserdüse besteht im wesentlichen aus einem ein Aussengewinde 3 aufweisenden Gehäuse 1, in welchem eine Zentralbohrung angebracht ist. Die Auffangbohrung ist unterteilt in zwei Abschnitte 2 und 17 mit unterschiedlichen Durchmessern. In den Abschnitt 2 der Auffangbohrung ist mittels eines weiteren Gewindes 4 eine Führungshülse 5 einschraubbar.The water nozzle shown in section in the drawing consists essentially of a housing 1 having an external thread 3, in which a central bore is made. The collecting hole is divided into two sections 2 and 17 with different diameters. A guide sleeve 5 can be screwed into section 2 of the collecting bore by means of a further thread 4.

Das Gewinde 3 ist für die Verbindung mit einer Wasserzuführungsleitung vorgesehen.The thread 3 is provided for connection to a water supply line.

Die Führungshülse 5 weist wassereintrittsseitig eine verengte kanalartige Führung 7 und daran anschliessend eine Erweiterung 8 auf. Die Erweiterung 8 geht innerhalb des Gehäuses 1 in den Abschnitt 17 über. Der Abschnitt 17 als Teil der Zentralbohrung ist gegenüber der Erweiterung 8 mit einer Abstufung 15 versehen. Innerhalb der Führungshülse 5 ist ein mehrfach abgestufter Kolben 6 angeordnet. An seinem oberen wassereintrittsseitig angeordneten Ende weist der Kolben 6 eine geringfügige Verstärkung 9 und innerhalb der Erweiterung 8 eine grössere Verstärkung 10 auf. Am unteren wasseraustrittsseitigen Ende des Kolbens 6 weist dieser einen Kolbenstumpf 14 auf. Der Kolben 6 ist über eine spiralförmig ausgebildete Feder 13 vorspannbar. In der Verstärkung 10 ist eine waagerecht verlaufende Bohrung 11 und eine durch den Kolbenstumpf 14 senkrecht verlaufende Bohrung 12 angeordnet.The guide sleeve 5 has a narrowed channel-like guide 7 on the water inlet side and then an extension 8. The extension 8 merges into the section 17 within the housing 1. The section 17 as part of the central bore is provided with a step 15 in relation to the extension 8. A multiply graduated piston 6 is arranged within the guide sleeve 5. At its upper end arranged on the water inlet side, the piston 6 has a slight reinforcement 9 and a larger reinforcement within the extension 8 10 on. At the lower end of the piston 6 on the water outlet side, the piston 6 has a piston stub 14. The piston 6 can be pretensioned by means of a spiral-shaped spring 13. In the reinforcement 10 there is a horizontal bore 11 and a bore 12 extending vertically through the piston stub 14.

Die Feder 13 ist innerhalb des Abschnitts 17 in der Abstufung 16, die als Widerlager ausgebildet ist, gelagert. Das obere Ende der Feder ist durch den Kolbenstupf 14 geführt. An den Abschnitt 17 schliesst sich wasseraustrittsseitig die Zentralbohrung 18 an.The spring 13 is mounted within the section 17 in the step 16, which is designed as an abutment. The upper end of the spring is guided through the piston stub 14. The central bore 18 connects to the section 17 on the water outlet side.

Bei Wassereintritt wird der Kolben 6 von seinem Sitz innerhalb der Führungshülse 7 abgehoben und gegen die vorgespannte Feder 13 geschoben. Dabei bildet die Erweiterung 9 des Kolbens 6 einen verengten Ringspalt 19. Im Wasser mitgeführte grössere Feststoffteile werden auf diese Weise durch den Ringspalt 19 zurückgehalten. Feststoffe, die aufgrund ihrer Grösse nicht in den Ringspalt eintreten und die zentrale Bohrung 18 passieren können, werden beim Abschalten des Wasserstromes durch den federbelasteten Kolben 6 von der Eintrittsöffnung weggedrückt und gleiten in den die Führungshülse umgebenden Speicherraum der nicht dargestellten Wasserzuleitung. Um innerhalb des Abschnitts 17 eine zusätzliche Verwirbelung des Wassers zu erzielen und um in diesem Bereich das Absetzen von Feststoffteilchen zu vermeiden, weist die Feder 13 einen geringeren Querschnitt auf, als der Abschnitt 17.

  • 1 Gehäuse
  • 2 Abschnitt
  • 3 Gewinde
  • 4 Gewinde
  • 5 Führungshülse
  • 6 Kolben
  • 7 kanalartige Führung
  • 8 Erweiterung
  • 9 Verbreiterung
  • 10 Verbreiterung
  • 12 Bohrungen
  • 13 Spiralfeder
  • 14 Kolbenstumpf
  • 15 Abstufung
  • 16 Abstufung
  • 17 Abschnitt
  • 18 Bohrung
  • 19 Ringspalt
  • 20 Ringspalt
When water enters, the piston 6 is lifted from its seat within the guide sleeve 7 and pushed against the prestressed spring 13. The extension 9 of the piston 6 forms a narrowed annular gap 19. Larger solid particles carried in the water are retained in this way by the annular gap 19. Solids, which due to their size do not enter the annular gap and can pass through the central bore 18, are pushed away from the inlet opening by the spring-loaded piston 6 when the water flow is switched off and slide into the storage space of the water supply line, not shown, surrounding the guide sleeve. In order to achieve an additional swirling of the water within the section 17 and to avoid the settling of solid particles in this area, the spring 13 has a smaller cross section than the section 17.
  • 1 housing
  • 2 section
  • 3 threads
  • 4 threads
  • 5 guide sleeve
  • 6 pistons
  • 7 channel-like guidance
  • 8 extension
  • 9 broadening
  • 10 widening
  • 12 holes
  • 13 coil spring
  • 14 piston stump
  • 15 gradation
  • 16 gradation
  • 17 section
  • 18 hole
  • 19 annular gap
  • 20 annular gap

Claims (5)

1. Water nozzle to be used for dust suppression in particular on shearer drums and consisting essentially of a body (1) which can be screwed into a water supply line and has an inlet boring at its water supply face viz. a central boring (18) of small diameter at its water discharge end, this nozzle being characterized in that the inlet boring is formed of two distinct portions (2, 17), that in portion (2) of the inlet boring of body (1) are arranged a graded guide bushing (5) to be screwed into nozzle body (1) as well as a piston (6) configurated by several gradations in its axial direction and prestressed by means of a spring (13), and that the guide bushing (5) consists of a channel-type inlet duct (7) near the water inlet end and a subsequent enlarged portion (8) and in that the piston (6) arranged in the buide bushing (5) has a slightly larger cross-section in the inlet duct (7) and a noticeably wider cross-section (9, 10) within the larger portion (8), the wider cross-section (9) of piston (6) together with inlet duct (7) forming a narowed annular gap (19) when the water enters.
2. Water nozzle according to claim 1, characterized in that additional borings (11, 12) are provided in the larger portion (10) of piston (6).
3. Water nozzle according to claim 1, characterized in that below its larger portion (10) directed towards the water discharge the piston (6) bears a protrusion (14) which receives a spiral spring (13).
4. Water nozzle according to claim 1, characterized in that within portion (17) of the inlet boring is provided a shoulder (16) forming a support forthe spring (13).
5. Water nozzle according to claim 1, characterized in that the spiral spring (13) is of a smaller cross-section than the portion (17).
EP81103181A 1980-05-20 1981-04-28 Water nozzle with self-cleaning means Expired EP0040334B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19808013540U DE8013540U1 (en) 1980-05-20 1980-05-20 WATER NOZZLE WITH SELF-CLEANING DEVICE
DE8013540U 1980-05-20

Publications (3)

Publication Number Publication Date
EP0040334A2 EP0040334A2 (en) 1981-11-25
EP0040334A3 EP0040334A3 (en) 1982-02-03
EP0040334B1 true EP0040334B1 (en) 1984-09-12

Family

ID=6715619

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103181A Expired EP0040334B1 (en) 1980-05-20 1981-04-28 Water nozzle with self-cleaning means

Country Status (3)

Country Link
US (1) US4480789A (en)
EP (1) EP0040334B1 (en)
DE (2) DE8013540U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT385320B (en) * 1986-07-17 1988-03-25 Voest Alpine Ag SPRAYING DEVICE FOR COOLANT FROM A NOZZLE OF A SCREW HEAD
AT385815B (en) * 1986-07-17 1988-05-25 Voest Alpine Ag SPRAYING DEVICE FOR COOLANT FROM A NOZZLE OF A SCREW HEAD
CN101555790B (en) * 2009-05-23 2011-02-09 山东卡特重工有限公司 Internal spraying excavator which can reduce temperature with high efficiency

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT370208B (en) * 1981-06-04 1983-03-10 Voest Alpine Ag DEVICE FOR COOLING THE CHISELS OF A BREWING MACHINE
AT370209B (en) * 1981-06-04 1983-03-10 Voest Alpine Ag DEVICE FOR COOLING THE CHISELS OF A BREWING MACHINE
US4502510A (en) * 1983-02-09 1985-03-05 Dana Corporation Automatic cleaning and metering device
US5119991A (en) * 1990-10-12 1992-06-09 Robert O. Agbede Self-cleaning nozzle and associated method
US5272874A (en) * 1991-09-26 1993-12-28 Dry Systems Technologies Exhaust treatment system
GB9409571D0 (en) * 1994-05-13 1994-07-06 Chicken Robert R Self cleaning screen washer
DE29702162U1 (en) * 1997-02-08 1998-06-10 Wirtgen GmbH, 53578 Windhagen Device for processing roadways, and device for producing foamed bitumen
US5822958A (en) * 1997-06-02 1998-10-20 Winpak Lane, Inc. Sanitary fill tube and piston valve assembly for a pouch packaging machine
WO2006135659A1 (en) * 2005-06-09 2006-12-21 Bowles Fluidics Corporation Improved fluid spray device that utilizes a check valve
WO2008045134A2 (en) * 2006-03-07 2008-04-17 Dimensional Research, Inc. Airborne situational awareness system
US7927413B2 (en) * 2007-04-17 2011-04-19 Astec, Inc. Method and apparatus for making asphalt concrete using foamed asphalt cement
CN101476465B (en) * 2009-01-09 2011-04-13 山东卡特重工有限公司 Inner-atomizing development machine
CN101555792B (en) * 2009-05-23 2011-07-20 山东卡特重工有限公司 Gate-type nozzle of excavator with internal spraying
DE202010001744U1 (en) * 2010-02-02 2010-05-12 Protecfire Gmbh spray nozzle
CN202087472U (en) * 2011-05-10 2011-12-28 深圳市华星光电技术有限公司 Cleaning device for spray nozzle of slit coating machine
JP6151674B2 (en) 2014-10-03 2017-06-21 ファナック株式会社 Coolant nozzle with a function to automatically eliminate clogging of foreign matter
US10518280B2 (en) * 2016-04-26 2019-12-31 St&T International, Inc. Self sealing and cleaning nozzle
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AT385815B (en) * 1986-07-17 1988-05-25 Voest Alpine Ag SPRAYING DEVICE FOR COOLANT FROM A NOZZLE OF A SCREW HEAD
CN101555790B (en) * 2009-05-23 2011-02-09 山东卡特重工有限公司 Internal spraying excavator which can reduce temperature with high efficiency

Also Published As

Publication number Publication date
DE3165951D1 (en) 1984-10-18
EP0040334A3 (en) 1982-02-03
DE8013540U1 (en) 1980-10-30
US4480789A (en) 1984-11-06
EP0040334A2 (en) 1981-11-25

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