EP0040334A2 - Water nozzle with self-cleaning means - Google Patents

Water nozzle with self-cleaning means Download PDF

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Publication number
EP0040334A2
EP0040334A2 EP81103181A EP81103181A EP0040334A2 EP 0040334 A2 EP0040334 A2 EP 0040334A2 EP 81103181 A EP81103181 A EP 81103181A EP 81103181 A EP81103181 A EP 81103181A EP 0040334 A2 EP0040334 A2 EP 0040334A2
Authority
EP
European Patent Office
Prior art keywords
piston
water
water nozzle
section
guide sleeve
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.)
Granted
Application number
EP81103181A
Other languages
German (de)
French (fr)
Other versions
EP0040334B1 (en
EP0040334A3 (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, in particular for dust control, for example on cutting rollers, which essentially consists 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 which has an insert inside the receiving bore and is pressed into the water inlet side and a spray 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 nozzle.
  • the spray chamber is said to facilitate cleaning in that the cleaning work can be carried out with a thin wire through the central bore.
  • the invention has now set itself the task of creating a water nozzle, in particular for dust control, for example on scraper rollers or other underground facilities, which avoids the blockages while avoiding the above-mentioned disadvantages and largely guarantees the functionality of the nozzles Manufacturing is easy and inexpensive.
  • the collecting bore is divided into two sections, and that in the section of the receiving bore of the housing and screwed into this, a stepped guide sleeve is arranged with a piston which is stepped several times in the axial direction and can be pretensioned by a spring.
  • the guide sleeve consists of a channel-like feed and a subsequent widening on the water inlet side and the piston arranged in the guide sleeve has a slight widening in the feed and a strong widening within the widening.
  • 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 goes inside the housing 1 in the overlapped 17.
  • 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 10 within the extension 8.
  • 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)

Abstract

Die Wasserdüse ist zur Staubbekämpfung, beispielsweise an Schrämwalzen, vorgesehen. Sie wird in Zuführungsleitungen der Schrämwalze eingeschraubt und weist eine in zwei Abschnitte (2, 17) unterteilte Auffangbohrung auf, wobei in dem Abschnitt (2) eine Führungshülse (5) mit einem in axialer Richtung mehrfach abgestuften und vorgespannten Kolben (6) angeordnet ist. Die Ausbildung des Kolbens (6) und die Unterteilung der Auffangbohrung verhindern eine Schmutzablagerung und gewährleisten durch zusätzlich entstehende Verwirbelungen ein Vermeiden von Verstopfungen.The water nozzle is intended for dust control, for example on cutting rollers. It is screwed into the feed lines of the cutting roller and has a collecting bore divided into two sections (2, 17), a guide sleeve (5) with a preloaded piston (6) which is stepped several times in the axial direction being arranged in section (2). The design of the piston (6) and the subdivision of the collecting bore prevent dirt from depositing and, through additional turbulence, prevent clogging.

Description

Die Erfindung betrifft eine Wasserdüse, insbesondere zur Staubbekämpfung beispielsweise an Schrämwalzen, die im wesentlichen aus einem in eine Wasserzuführungsleitung einschraubbaren, auf der Wassereintrittsseite eine Auffangbohrung sowie auf der Wasseraustrittsseite eine zentrale Bohrung geringen Durchmessers aufweisenden Gehäuse besteht.The invention relates to a water nozzle, in particular for dust control, for example on cutting rollers, which essentially consists 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 wesentlichen Nachteil derartiger eingangs genannter Wasserdüsen liegt in der ständigen Verstopfung durch innerhalb der Wasserzuführungsleitungen anfallenden festen Bestandteilen wie beispielsweise Rost. Da das Reinigen solcher Düsen bzw. das Beseitigen der festen Bestandteile durch Herausdrehen der Wasserdüsen 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 is associated with this process and thus high costs and labor.

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 Sprühkammer aufweist. Die Sprühkammer soll eine zusätzliche Verwirbelung des Wassers und somit ein Festsetzen des Schmutzes im Bereich der Düse vermeiden. Darüber hinaus soll die Sprühkammer eine Erleichterung bei der Reinigung dahingehend mit sich bringen, daß die Reinigungsarbeit mit einem dünnen Draht durch die zentrale Bohrung hindurch vorgenommen werden kann.An improvement with regard to the prevention of blockages and a relief in the implementation of the cleaning has been achieved with a water nozzle which has an insert inside the receiving bore and is pressed into the water inlet side and a spray 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 nozzle. In addition, the spray chamber is said to facilitate cleaning in that the cleaning work can be carried out with a thin wire through the central bore.

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.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.

Die Erfindung hat sich nunmehr die Aufgabe gestellt, eine Wasserdüse, insbesondere zur Staubbekämpfung, beispielsweise an Schrämwalzen oder auch an anderen untertägigen Einrichtungen zu schaffen, die unter Vermeidung der obengenannten 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, in particular for dust control, for example on scraper rollers or other underground facilities, which avoids the blockages while avoiding the above-mentioned disadvantages and largely guarantees the functionality of the nozzles Manufacturing is easy and inexpensive.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Auffangbohrung in zwei Abschnitte unterteilt ausgebildet ist, und daß in dem Abschnitt der Auffangbohrung des Gehäuses und in dieses einschraubbar eine abgestufte Führungshülse mit einem in axialer Richtung mehrfach abgestuften und über eine Feder vorspannbaren Kolben angeordnet ist.This object is achieved in that the collecting bore is divided into two sections, and that in the section of the receiving bore of the housing and screwed into this, a stepped guide sleeve is arranged with a piston which is stepped several times in the axial direction and can be pretensioned by a spring.

Es erweist sich als vorteilhaft, 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 starke Verbreiterung aufweist.It has proven to be advantageous that the guide sleeve consists of a channel-like feed and a subsequent widening on the water inlet side and the piston arranged in the guide sleeve has a slight widening in the feed and a strong widening within the widening.

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 Fortschritt der Erfindung ist insbesondere darin zu sehen, daß die hohe 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 progress of the invention can be seen in particular in the fact that the high costs 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 an hand 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 kanalarartige 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 goes inside the housing 1 in the overlapped 17. 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 10 within the extension 8. 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 Kolbenstumpf 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 Eintrittöffnung 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
  • 11
  • 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
  • 11
  • 12 holes
  • 13 coil spring
  • 14 piston stump
  • 15 gradation
  • 16 gradation
  • 17 section
  • 18 hole
  • 19 annular gap
  • 20 annular gap

Claims (6)

1. Wasserdüse, insbesondere zur Staubbekämpfung, beispielsweise an Schrämwalzen, die 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, dadurch gekennzeichnet, daß die Auffangbohrung in zwei Abschnitte (2,17) unterteilt ausgebildet ist und daß in dem Abschnitt (2) der Auffangbohrung (2) des Gehäuses (1) und in dieses einschraubbar eine abgestufte Führungshülse (5) mit einem in axialer Richtung mehrfach abgestuften und über eine Feder (13) vorspannbaren Kolben (6) angeordnet ist.1. Water nozzle, in particular for dust control, for example on scraper rollers, which essentially consists of a screwable into a water supply line and on the water inlet side a collecting hole and on the water outlet side a central hole of small diameter housing, characterized in that the collecting hole in two sections (2,17) is subdivided and that in the section (2) of the receiving bore (2) of the housing (1) and can be screwed into it a stepped guide sleeve (5) with a stepped in the axial direction several times and via a spring (13) preloadable piston (6) is arranged. 2. Wasserdüse nach Anspruch 1, dadurch gekennzeichnet, daß die Führungshülse (5) aus einer wassereintrittsseitig kanalartigen Zuführung (7) und einer anschließenden Erweiterung (8) besteht und der in der Führungshülse (5) angeordnete Kolben (6) in der Zuführung (7) eine geringfügige und innerhalb der Erweiterung (8) eine stärkere Verbreiterung (9, 10) aufweist.2. Water nozzle according to claim 1, characterized in that the guide sleeve (5) consists of a water inlet side channel-like feed (7) and a subsequent extension (8) and the piston (6) arranged in the guide sleeve (5) in the feed (7 ) has a slight widening (9, 10) within the extension (8). 3. Wasserdüse nach Anspruch 1, dadurch gekennzeichnet, daß die Verbreiterung (10) des Kolbens (6) mit zusätzlichen Bohrungen (11, 12) versehen ist. 3rd Water nozzle according to claim 1, characterized in that the widening (10) of the piston (6) is provided with additional bores (11, 12). 4. Wasserdüse nach Anspruch 1, dadurch gekennzeichnet, daß der Kolben (6) unterhalb der Verbreiterung (10) in Richtung auf den Wasseraustritt mit einem eine Spiralfeder (13) aufnehmenden Kolbenstumpf (14) versehen ist.4. Water nozzle according to claim 1, characterized in that the piston (6) below the widening (10) in the direction of the water outlet is provided with a coil spring (13) receiving the piston stump (14). 5. Wasserdüse nach Anspruch 1, dadurch gekennzeichnet, daß in dem Abschnitt (17) der Auffangbohrung eine ein Widerlager für die Feder (13) bildende Abstufung (16) angeordnet ist.5. Water nozzle according to claim 1, characterized in that a step (16) forming an abutment for the spring (13) is arranged in the section (17) of the collecting bore. 6. Wasserdüse nach Anspruch 1, dadurch gekennzeichnet, daß die spiralförmig verlaufende Feder (13) einen geringeren Querschnitt als der Abschnitt (17) aufweist.6. Water nozzle according to claim 1, characterized in that the spiral spring (13) has a smaller cross section than the section (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
DE8013540U 1980-05-20
DE19808013540U DE8013540U1 (en) 1980-05-20 1980-05-20 WATER NOZZLE WITH SELF-CLEANING DEVICE

Publications (3)

Publication Number Publication Date
EP0040334A2 true EP0040334A2 (en) 1981-11-25
EP0040334A3 EP0040334A3 (en) 1982-02-03
EP0040334B1 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 (8)

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Publication number Priority date Publication date Assignee Title
GB2135024A (en) * 1983-02-09 1984-08-22 Dana Corp Automatic cleaning and metering device
US4506932A (en) * 1981-06-04 1985-03-26 Voest-Alpine Aktiengesellschaft Device for cooling the bits of a cutting machine
US4537447A (en) * 1981-06-04 1985-08-27 Voest-Alpine Aktiengesellschaft Device for cooling the bits of cutting machine
EP0253802A1 (en) * 1986-07-17 1988-01-20 VOEST-ALPINE Aktiengesellschaft Device for spraying cooling fluid from nozzles on a cutter head
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
WO2011095463A3 (en) * 2010-02-02 2012-06-07 Edgar Roberto Solis Perez Spray nozzle unit
CN106475243A (en) * 2016-11-08 2017-03-08 山东科技大学 A kind of current stabilization sprayer unit

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* 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
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
JP2008543536A (en) * 2005-06-09 2008-12-04 ボールズ・フルイディクス・コーポレーション Improved fluid spraying device utilizing a check valve
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US4506932A (en) * 1981-06-04 1985-03-26 Voest-Alpine Aktiengesellschaft Device for cooling the bits of a cutting machine
US4537447A (en) * 1981-06-04 1985-08-27 Voest-Alpine Aktiengesellschaft Device for cooling the bits of cutting machine
GB2135024A (en) * 1983-02-09 1984-08-22 Dana Corp Automatic cleaning and metering device
EP0253802A1 (en) * 1986-07-17 1988-01-20 VOEST-ALPINE Aktiengesellschaft Device for spraying cooling fluid from nozzles on a cutter head
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
WO2011095463A3 (en) * 2010-02-02 2012-06-07 Edgar Roberto Solis Perez Spray nozzle unit
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Also Published As

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EP0040334B1 (en) 1984-09-12
US4480789A (en) 1984-11-06
DE8013540U1 (en) 1980-10-30
DE3165951D1 (en) 1984-10-18
EP0040334A3 (en) 1982-02-03

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