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EP0084186A1 - Snow gun - Google Patents

Snow gun Download PDF

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Publication number
EP0084186A1
EP0084186A1 EP82200056A EP82200056A EP0084186A1 EP 0084186 A1 EP0084186 A1 EP 0084186A1 EP 82200056 A EP82200056 A EP 82200056A EP 82200056 A EP82200056 A EP 82200056A EP 0084186 A1 EP0084186 A1 EP 0084186A1
Authority
EP
European Patent Office
Prior art keywords
supply line
air supply
nozzles
compressed
compressed air
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
EP82200056A
Other languages
German (de)
French (fr)
Other versions
EP0084186B1 (en
Inventor
Michael Manhart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE8282200056T priority Critical patent/DE3274901D1/en
Priority to EP82200056A priority patent/EP0084186B1/en
Priority to AT82200056T priority patent/ATE24603T1/en
Priority to FI830107A priority patent/FI71005C/en
Priority to NO830146A priority patent/NO154322C/en
Priority to ES519055A priority patent/ES519055A0/en
Priority to CA000419614A priority patent/CA1198904A/en
Priority to JP58006533A priority patent/JPS58124562A/en
Publication of EP0084186A1 publication Critical patent/EP0084186A1/en
Application granted granted Critical
Publication of EP0084186B1 publication Critical patent/EP0084186B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C3/00—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow
    • F25C3/04—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow for sledging or ski trails; Producing artificial snow
    • 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
    • B05B7/0433—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 gas surrounded by an external conduit of liquid upstream the mixing chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2303/00—Special arrangements or features for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Special arrangements or features for producing artificial snow
    • F25C2303/048—Snow making by using means for spraying water
    • F25C2303/0481—Snow making by using means for spraying water with the use of compressed air

Definitions

  • the present invention relates to a snow cannon with a central compressed air supply line and a pressure water supply line which surrounds it and is arranged coaxially with it, the compressed air supply line opening into an interior of a spray head which is delimited in the direction of the compressed air supply at the front by a pierced end piece and serves as a pre-expansion space.
  • the mode of operation of such a snow cannon is essentially that a very low temperature is generated in the pre-expansion chamber, with condensation nuclei in the form of ice particles in the air-water mixture, around which the water is already partially freezing to snow. These condensation cores are finally expelled or sprayed through a single, central front bore of the cover plate together with not yet frozen water particles and compressed air that is not involved in the snow production process, with the help of the condensation cores and the additional cooling that occurs on the outside of the central bore of the cover plate The compressed air in front of this central hole, including the cool ambient air, creates snow.
  • the present invention is therefore based on the object of achieving a significantly more favorable use of energy by means of an increased inclusion of the outside air in the mixing and condensation process, and this at a significantly lower noise level than that of the known cannons.
  • the end piece has at least three centrally arranged outlet nozzles.
  • the compressed air supply line is designated by 1, the compressed air channel 2 passing through it being connected to a compressed air source in a manner not shown.
  • the compressed air duct 2 is closed at its front end by a plug 3.
  • three lateral nozzle openings 4 are provided which communicate with the compressed air channel 2 and whose geometric axes intersect the geometric axis of the compressed air channel 2 at an acute angle.
  • a collar 5 is provided next to the stopper 3 and protrudes outwards perpendicularly to the geometric axis of the compressed air duct 2.
  • the outer jacket 6 of the water supply is arranged coaxially with the compressed air supply line 1, the inner thread 6a of which serves to receive the external thread 7a of the spray head 7.
  • a pre-expansion space 9 is delimited by its inner wall and the end piece 8, which communicates with the outside air via three centrally arranged through-holes 10 forming outlet nozzles, none of which lie in the geometric axis of the compressed air supply line 1.
  • any number of openings could in principle be provided, but none of them may lie in the geometric axis of the compressed air supply line.
  • the diameter of an outlet nozzle is 1 to 3 times the diameter of an inner nozzle. If more than 3 outlet and inner nozzles are provided, the area of an outer nozzle cross section, multiplied by the number of outer nozzles and divided by 3, is equal to the total area of the cross sections of the inner nozzles, divides the number of inner nozzles.
  • the mode of operation of the known snow cannons differs from that of the illustrated embodiment of the subject matter of the invention in that the arrangement of a plurality of through-holes 10 of the end piece 8 offset with respect to the geometric axis of the compressed air supply line enables a substantially better mixing of water and air, by entraining the outside air, the aim of which is to be used for snow production, between two exit jets and mixing with these exit jets comparatively close to the nozzle.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Lubricants (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Braking Arrangements (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)

Abstract

1. Snow gun having a central compressed-air supply line (1) and a pressurized-water supply line surrounding the latter and disposed coaxially therewith, the compressed-air supply line opening out into an interior space of a spray-head (7) at the front, in the direction of the compressed air supply, the space being bounded by a bored endpiece (8) and serving as a preexpansion chamber (9), inner nozzles (4) in the form of bores passing through the outside wall of the compressed-air supply line (1) being provided between the compressed-air supply line (1) and the pressurized-water supply line, through which nozzles the compressed air issues into the pre-expansion chamber (9) and mixes with the pressurized-water, characterized in that the compressed-air supply line (1) has three identical inner nozzles (4), and the endpiece has three centrosymmetrically disposed discharge nozzles (10) of identical diameter, none of which is situated in the geometric axis of the compressed-air supply line (1), and the diameter of a discharge nozzle (10) corresponds to 1 to 3 times the diameter of an inner nozzle (4).

Description

Gegenstand vorliegender Erfindung ist eine Schneekanone mit einer zentralen Druckluftzuleitung und einer diese umgebenden und koaxial zu ihr angeordneten Druckwasserzuleitung, wobei die Druckluftzuleitung in einen in Richtung der Druckluftzufuhr vorn durch ein durchbohrtes Abschlussstück begrenzten, als Vorentspannungsraum dienenden Innenraum eines Sprühkopfes mündet.The present invention relates to a snow cannon with a central compressed air supply line and a pressure water supply line which surrounds it and is arranged coaxially with it, the compressed air supply line opening into an interior of a spray head which is delimited in the direction of the compressed air supply at the front by a pierced end piece and serves as a pre-expansion space.

Die Wirkungsweise einer solchen Schneekanone ist im wesentlichen die, dass im Vorentspannungsraum eine sehr tiefe Temperatur entsteht, wobei sich im Luft-Wasser-Gemisch Kondensationskerne in Form von Eispartikeln bilden, um welche herum das Wasser teilweise bereits zu Schnee gefriert. Diese Kondensationskerne werden schliesslich durch eine einzige, zentrale Frontbohrung der Abschlussscheibe gemeinsam mit noch nicht gefrorenen Wasserpartikeln und nicht in den Vorgang der Schneeproduktion miteinbezogener Druckluft ausgestossen bzw. versprüht, wobei mit Hilfe der Kondensationskerne und der auf der Aussenseite der zentralen Bohrung der Abschlussscheibe zusätzlich entstehenden Entspannungskälte der Druckluft vor dieser zentralen Bohrung unter Einbezug der kühlen Umgebungsluft Schnee entsteht.The mode of operation of such a snow cannon is essentially that a very low temperature is generated in the pre-expansion chamber, with condensation nuclei in the form of ice particles in the air-water mixture, around which the water is already partially freezing to snow. These condensation cores are finally expelled or sprayed through a single, central front bore of the cover plate together with not yet frozen water particles and compressed air that is not involved in the snow production process, with the help of the condensation cores and the additional cooling that occurs on the outside of the central bore of the cover plate The compressed air in front of this central hole, including the cool ambient air, creates snow.

Solche vorbekannten Schneekanonen besitzen nun zwei entscheidende Nachteile, für welche die Anordnung einer einzigen zentralen Durchbohrung der Abschlussscheibe kausal ist. So bewirkt diese, dass der Kern des geschlossenen Luftstromes an der Umsetzung zu Schnee mangels genügender Zerstäubung (bzw. Vermischung mit Wasser) überhaupt nicht teilnimmt. Dies hat, abgesehen von der ungenutzten kinetischen Energie des Luftstromes, bzw. von der nutzlosen Vergeudung des ihm innewohnenden Kältepotentials, einen übergrossen Lärm zur Folge, der die Einsatzmöglichkeit solcher Geräte entscheidend beschränkt. Die mangelnde bzw. ungenügende Vermischung von Luft und Wasser hat des weiteren zur Folge, dass der austretende Strahl von einem Mantel von Wassertropfen umgeben ist, der sich einfach als Wasser vor der Bohrung der Abschlussscheibe auf dem Boden niederschlägt. Auch hier wieder wird zur Beschleunigung des Wassers Energie aufgewendet, die letztendlich nicht in Schneeproduktion umsetzbar ist.Such known snow cannons now have two decisive disadvantages, for which the arrangement of a single central through-hole in the cover plate is causal. This means that the core of the closed air flow does not take part in the conversion to snow due to insufficient atomization (or mixing with water). Apart from the unused kinetic energy of the air flow or the useless waste of its inherent cold potential, this results in excessive noise, which decisively limits the use of such devices. The inadequate or insufficient mixing of air and water has the further consequence that the emerging jet is surrounded by a coat of water droplets, which simply precipitates as water on the floor before the end lens is drilled. Here again, energy is used to accelerate the water, which ultimately cannot be implemented in snow production.

Diese Vergeudung von Energie ist bei Schneekanonen umso schmerzlicher, als ohnehin erheblich Energie aufgebracht werden muss, um durch grosse Wurfweite das Kältepotential der Umgebungsluft möglichst zu aktivieren.This waste of energy is all the more painful with snow cannons, since considerable energy has to be applied anyway in order to activate the cold potential of the ambient air as far as possible through a long throw.

Der vorliegenden Erfindung liegt demzufolge die Aufgabe zugrunde, durch einen vermehrten Miteinbezugder Aussenluft in den Vermischungs- und Kondensationsvorgang zu einer wesentlich günstigeren Energie-Ausnützung zu gelangen, und dies bei einem - verglichen mit demjenigen der bekannten Kanonen - wesentlich geringeren Lärmpegel.The present invention is therefore based on the object of achieving a significantly more favorable use of energy by means of an increased inclusion of the outside air in the mixing and condensation process, and this at a significantly lower noise level than that of the known cannons.

Dies wird erfindungsgemäss dadurch erreicht, dass das Abschlussstück mindestens drei zentralsymmetrisch angeordnete Austrittsdüsen besitzt.This is achieved according to the invention in that the end piece has at least three centrally arranged outlet nozzles.

In der Zeichnung ist eine beispielsweise Ausführungsform des Erfindungsgegenstandes schaubildlich dargestellt, wobei zum besseren Verständnis der Sprühkopf von der Wasserzuleitung abgeschraubt und ein Stück von ihr entfernt dargestellt ist.In the drawing is an example tion form of the subject of the invention is shown graphically, the spray head being unscrewed from the water supply line and shown a distance from it for a better understanding.

Mit 1 ist die Druckluftzuleitung bezeichnet, wobei der sie durchsetzende Druckluftkanal 2.auf nicht weiter dargestellte Weise mit einer Druckluftquelle verbunden ist. Der Druckluftkanal 2 ist an seinem vorderen Ende durch einen Pfropfen 3 abgeschlossen. Dafür sind drei seitliche Düsenöffnungen 4 vorgesehen, welche mit dem Druckluftkanal 2 kommunizieren, und deren geometrische Achsen unter einem spitzen Winkel die geometrische Achse des Druckluftkanals 2 schneiden. Anschliessend an den Pfropfen 3 ist ein Kragen 5 vorgesehen, der senkrecht zur geometrischen Achse des Druckluftkanals 2 nach aussen absteht.The compressed air supply line is designated by 1, the compressed air channel 2 passing through it being connected to a compressed air source in a manner not shown. The compressed air duct 2 is closed at its front end by a plug 3. For this purpose, three lateral nozzle openings 4 are provided which communicate with the compressed air channel 2 and whose geometric axes intersect the geometric axis of the compressed air channel 2 at an acute angle. A collar 5 is provided next to the stopper 3 and protrudes outwards perpendicularly to the geometric axis of the compressed air duct 2.

Koaxial zur Druckluftzuleitung 1 ist der Aussenmantel 6 der Wasserzufuhr angeordnet, dessen Innengewinde 6a der Aufnahme des Aussengewindes 7a des Sprühkopfes 7 dient. Bei aufgeschraubtem Sprühkopf 7 wird durch dessen Innenwand sowie das Abschlussstück 8 ein Vorentspannungsraum 9 begrenzt, der über drei zentralsymmetrisch angeordnete, Austrittsdüsen bildende Durchbohrungen 10, von denen keine in der geometrischen Achse der Druckluftzuleitung 1 liegt, mit der Aussenluft kommuniziert. Anstelle der drei Austrittsdüsen 10 könnte grundsätzlich eine beliebige Mehrzahl von Durchbrechungen vorgesehen sein, von denen aber keine in der geometrischen Achse der Druckluftzuleitung liegen darf.The outer jacket 6 of the water supply is arranged coaxially with the compressed air supply line 1, the inner thread 6a of which serves to receive the external thread 7a of the spray head 7. When the spray head 7 is screwed on, a pre-expansion space 9 is delimited by its inner wall and the end piece 8, which communicates with the outside air via three centrally arranged through-holes 10 forming outlet nozzles, none of which lie in the geometric axis of the compressed air supply line 1. Instead of the three outlet nozzles 10, any number of openings could in principle be provided, but none of them may lie in the geometric axis of the compressed air supply line.

Bei der Anordnung von 3 Austrittsdüsen gleichen Durchmessers und 3 gleichen Innendüsen beträgt der Durchmesser einer Austrittsdüse den 1- bis 3-fachen Durchmesser einer Innendüse. Sind mehr als 3 Austritts-und Innendüsen vorgesehen, so ist die Fläche eines Aussendüsenquerschnittes, multipliziert mit der Anzahl Aussendüsen und dividiert durch 3, gleich der Gesamtfläche der Querschnitte der Innendüsen, dividiert die Anzahl von Innendüsen.If 3 outlet nozzles of the same diameter and 3 identical inner nozzles are arranged, the diameter of an outlet nozzle is 1 to 3 times the diameter of an inner nozzle. If more than 3 outlet and inner nozzles are provided, the area of an outer nozzle cross section, multiplied by the number of outer nozzles and divided by 3, is equal to the total area of the cross sections of the inner nozzles, divides the number of inner nozzles.

Von der bereits beschriebenen Wirkungsweise der bekannten Schneekanonen unterscheidet sich diejenige des dargestellten Ausführungsbeispiels des Erfindungsgegenstandes dadurch, dass durch die in bezug auf die geometrische Achse der Druckluftzuleitung versetzte Anordnung einer Mehrzahl von Durchbohrungen 10 des Abschlussstückes 8 eine wesentlich bessere Vermischung von Wasser und Luft ermöglicht wird, indem die Aussenluft, deren Heranziehung zur Schneeproduktion angestrebt wird, zwischen zwei Austrittsstrahlen mitgerissen wird und sich vergleichsweise nahe der Düse mit diesen Austrittsstrahlen vermischt.The mode of operation of the known snow cannons differs from that of the illustrated embodiment of the subject matter of the invention in that the arrangement of a plurality of through-holes 10 of the end piece 8 offset with respect to the geometric axis of the compressed air supply line enables a substantially better mixing of water and air, by entraining the outside air, the aim of which is to be used for snow production, between two exit jets and mixing with these exit jets comparatively close to the nozzle.

Claims (4)

1. Schneekanone mit einer zentralen Druckluftzuleitung und einer diese umgebenden und koaxial zu ihr angeordneten Druckwasserzuleitung, wobei die Druckluftzuleitung in einen in Richtung der Druckluftzufuhr vorn durch ein durchbohrtes Abschlussstück begrenzten, als Vorentspannungsraum dienenden Innenraum eines Sprühkopfes mündet, dadurch gekennzeichnet, dass das Abschlussstück mindestens drei zentralsymmetrisch angeordnete Austrittsdüsen besitzt.1.Snow cannon with a central compressed air supply line and a pressure water supply line which surrounds it and is arranged coaxially with it, the compressed air supply line opening into an interior of a spray head which is delimited in the direction of the compressed air supply by a pierced end piece and serves as a pre-relaxation space, characterized in that the end piece has at least three has centrally symmetrically arranged outlet nozzles. 2. Schneekanone nach Patentanspruch 1, dadurch gekennzeichnet, dass 3 Austrittsdüsen von gleichem Durchmesser sowie 3 gleiche Innendüsen vorgesehen sind.2. Snow cannon according to claim 1, characterized in that 3 outlet nozzles of the same diameter and 3 identical inner nozzles are provided. 3. Schneekanone nach Patentanspruch 2, dadurch gekennzeichnet, dass der Durchmesser einer Austrittsdüse dem 1- bis 3-fachen Durchmesser einer Innendüse entspricht.3. Snow cannon according to claim 2, characterized in that the diameter of an outlet nozzle corresponds to 1 to 3 times the diameter of an inner nozzle. 4. Schneekanone nach Patentanspruch 1 mit mehr als 3 Austritts- und Innendüsen, dadurch gekennzeichnet, dass die Fläche eines Aussendüsenquerschnittes, multipliziert mit der Anzahl Aussendüsen und dividiert durch 3, der Gesamtfläche der Querschnitte der Innendüsen, dividiert durch die Anzahl der Innendüsen, entspricht.4. Snow cannon according to claim 1 with more than 3 outlet and inner nozzles, characterized in that the area of an outer nozzle cross section, multiplied by the number of outer nozzles and divided by 3, corresponds to the total area of the cross sections of the inner nozzles, divided by the number of inner nozzles.
EP82200056A 1982-01-18 1982-01-18 Snow gun Expired EP0084186B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE8282200056T DE3274901D1 (en) 1982-01-18 1982-01-18 Snow gun
EP82200056A EP0084186B1 (en) 1982-01-18 1982-01-18 Snow gun
AT82200056T ATE24603T1 (en) 1982-01-18 1982-01-18 SNOW GUN.
FI830107A FI71005C (en) 1982-01-18 1983-01-12 SNOEKANON
NO830146A NO154322C (en) 1982-01-18 1983-01-17 SNOEKANON.
ES519055A ES519055A0 (en) 1982-01-18 1983-01-17 SNOW CANON DEVICE.
CA000419614A CA1198904A (en) 1982-01-18 1983-01-17 Snow gun
JP58006533A JPS58124562A (en) 1982-01-18 1983-01-18 Snow gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82200056A EP0084186B1 (en) 1982-01-18 1982-01-18 Snow gun

Publications (2)

Publication Number Publication Date
EP0084186A1 true EP0084186A1 (en) 1983-07-27
EP0084186B1 EP0084186B1 (en) 1986-12-30

Family

ID=8189451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200056A Expired EP0084186B1 (en) 1982-01-18 1982-01-18 Snow gun

Country Status (8)

Country Link
EP (1) EP0084186B1 (en)
JP (1) JPS58124562A (en)
AT (1) ATE24603T1 (en)
CA (1) CA1198904A (en)
DE (1) DE3274901D1 (en)
ES (1) ES519055A0 (en)
FI (1) FI71005C (en)
NO (1) NO154322C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594528A1 (en) * 1986-02-20 1987-08-21 Petavit Ets Fluid mixing nozzle for artificial snow-making apparatus
EP0855563A1 (en) 1997-01-23 1998-07-29 LEITNER S.p.A. Snow production cannon
FR2783310A1 (en) * 1998-09-11 2000-03-17 Dicc Realisations Sa Snow cannon for ski slopes has mixing chamber with angled water and air inlet injectors
CN104174521A (en) * 2014-09-11 2014-12-03 东莞市安默琳节能环保技术有限公司 Frost prevention nozzle used for low-temperature minimal quantity lubrication cutting

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6453067A (en) * 1987-08-20 1989-03-01 Yanmar Diesel Engine Co Ignition device for engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676471A (en) * 1950-12-14 1954-04-27 Tey Mfg Corp Method for making and distributing snow
US2942790A (en) * 1959-01-23 1960-06-28 Gen Electric Air-atomizing liquid spray nozzle
DE1475160A1 (en) * 1963-09-27 1969-01-23 Sames Mach Electrostat Pressurized gas atomizer for spraying liquids
US3836076A (en) * 1972-10-10 1974-09-17 Delavan Manufacturing Co Foam generating nozzle
US4101073A (en) * 1977-08-25 1978-07-18 Spray Engineering Company Two-fluid spray nozzle producing fine atomization of liquid
DE2941052A1 (en) * 1979-10-10 1981-03-12 Heinz 8581 Heinersreuth Fischer Artificial snow generator system - mixes water with compressed air cooled by expansion in convergent-divergent nozzle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676471A (en) * 1950-12-14 1954-04-27 Tey Mfg Corp Method for making and distributing snow
US2942790A (en) * 1959-01-23 1960-06-28 Gen Electric Air-atomizing liquid spray nozzle
DE1475160A1 (en) * 1963-09-27 1969-01-23 Sames Mach Electrostat Pressurized gas atomizer for spraying liquids
US3836076A (en) * 1972-10-10 1974-09-17 Delavan Manufacturing Co Foam generating nozzle
US4101073A (en) * 1977-08-25 1978-07-18 Spray Engineering Company Two-fluid spray nozzle producing fine atomization of liquid
DE2941052A1 (en) * 1979-10-10 1981-03-12 Heinz 8581 Heinersreuth Fischer Artificial snow generator system - mixes water with compressed air cooled by expansion in convergent-divergent nozzle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594528A1 (en) * 1986-02-20 1987-08-21 Petavit Ets Fluid mixing nozzle for artificial snow-making apparatus
EP0855563A1 (en) 1997-01-23 1998-07-29 LEITNER S.p.A. Snow production cannon
FR2783310A1 (en) * 1998-09-11 2000-03-17 Dicc Realisations Sa Snow cannon for ski slopes has mixing chamber with angled water and air inlet injectors
WO2000016026A1 (en) * 1998-09-11 2000-03-23 Dicc Realisations S.A. Snowmaker
CN104174521A (en) * 2014-09-11 2014-12-03 东莞市安默琳节能环保技术有限公司 Frost prevention nozzle used for low-temperature minimal quantity lubrication cutting

Also Published As

Publication number Publication date
FI830107A0 (en) 1983-01-12
DE3274901D1 (en) 1987-02-05
ES8402068A1 (en) 1984-01-01
ES519055A0 (en) 1984-01-01
NO154322B (en) 1986-05-20
FI71005C (en) 1986-10-27
NO154322C (en) 1986-08-27
FI830107L (en) 1983-07-19
JPS58124562A (en) 1983-07-25
JPS6340587B2 (en) 1988-08-11
NO830146L (en) 1983-07-19
ATE24603T1 (en) 1987-01-15
FI71005B (en) 1986-07-18
CA1198904A (en) 1986-01-07
EP0084186B1 (en) 1986-12-30

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