EP1114287B1 - Schneekanone - Google Patents

Schneekanone Download PDF

Info

Publication number
EP1114287B1
EP1114287B1 EP99946082A EP99946082A EP1114287B1 EP 1114287 B1 EP1114287 B1 EP 1114287B1 EP 99946082 A EP99946082 A EP 99946082A EP 99946082 A EP99946082 A EP 99946082A EP 1114287 B1 EP1114287 B1 EP 1114287B1
Authority
EP
European Patent Office
Prior art keywords
air
water
mixing chamber
snowmaker
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99946082A
Other languages
English (en)
French (fr)
Other versions
EP1114287A1 (de
Inventor
Olivier Seuret
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.)
Dicc Realisations Sa
Original Assignee
Dicc Realisations Sa
Dicc Realisation SA
DICC REALISATIONS S A
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 Dicc Realisations Sa, Dicc Realisation SA, DICC REALISATIONS S A filed Critical Dicc Realisations Sa
Publication of EP1114287A1 publication Critical patent/EP1114287A1/de
Application granted granted Critical
Publication of EP1114287B1 publication Critical patent/EP1114287B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B05B7/02—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
    • 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
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
    • 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
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
    • 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
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
    • 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
    • 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 snow cannons for production of artificial snow by spraying a mixture air and water.
  • the first family there is sufficient height above the ground, at the end of a pole, at least one nozzle air spray and an adjacent water spray nozzle.
  • water spray nozzles project fine droplets into an air flow produced by a fan.
  • a two-fluid cannon has a mixing chamber in which air and water are sprayed, and the mixture leaves the mixing chamber through an orifice exit.
  • This third family is for example illustrated by the document EP 0 018 280.
  • a hollow body includes a mixing chamber bounded by a peripheral wall coaxial and communicating with the outside through an outlet axial.
  • Air intake means inject compressed air in the mixing chamber.
  • Water intake means inject pressurized water in the mixing chamber.
  • the bedroom mixture is an elongated tube, with a section significantly smaller than the section of the air supply and water supply pipes.
  • the devices of the first family ensuring a high spraying at the end of a pole, need an inlet air pressure of 8 to 10 X 10 5 Pa, and a water pressure of at least 16 to 20 X 10 5 Pa. Spraying at height often leads to dispersing the snow outside the runway surface to be recharged, in the event of wind, even a weak one.
  • the support structure necessary to hold the pole leads to a unitary installation whose weight is generally greater than 100 kilograms.
  • the second family fan gun devices can deliver 400 to 800 liters of water per minute for a unit installation weight of 400 to 1000 kilograms. These devices also require an inlet water pressure of between 16 and 20 X 10 5 Pa approximately, as well as an electrical connection of 20 to 50 kilowatts. It is therefore necessary to provide expensive power cables to bring the energy to the snow production site.
  • Two-fluid guns of the type of that of documents EP 0 018 280, DE 29 41 052 A, FR 2 376 384 A, JP 06 074627 A or EP 0 084 186 A also need a significant, higher water pressure. at 10 X 10 5 Pa.
  • the inlet air pressure must be of the order of 8 X 10 5 Pa. Otherwise, the production of snow is faulty and the cannon mainly spits droplets of liquid water.
  • Compressed air production devices capable of achieve the pressures necessary for the guns currently used are relatively expensive, because the pressures are higher than general purpose compressors used on construction sites to supply jackhammers.
  • the problem proposed by the present invention is therefore to design a new snow cannon structure to produce good quality snow from more pressure low air and water at the entrance, so as to be satisfied with a lighter air and water production infrastructure under pressure, and so as to use transport pipes lighter and less expensive air and water.
  • the invention results from the surprising observation according to which we can produce artificial snow from lower air and water pressures due to shape special air and water mixing and expansion chamber, larger diameter, in which we create a maximum of turbulence while undergoing a reduced pressure drop, and remove the mixture through a reduced section passage after a progressive compression.
  • this invention provides a snow cannon for producing snow artificial spraying of air and water, comprising a hollow body having an oriented mixing chamber along a longitudinal axis, limited by a peripheral wall lateral and communicating with the outside via an exit passage front, having means for admitting water to inject water under pressure in the mixing chamber in one or more streams preferential directives in the peripheral zone of the mixing along the peripheral wall and in a movement rotatable around the longitudinal axis of the mixing chamber, and having shaped air intake means for injecting air compressed into the mixing chamber from the central area of mixing chamber, the means of admission of air being shaped to inject air in the form of one or several air jets each directed to cut off one of said flows preferential water directives, and the mixing chamber comprising an upstream expansion section followed by a downstream section of compression, the upstream expansion section communicating with the water intake means and with the air intake means and having a cross section greater than that of the means water and air intake to allow expansion of fluids during their mixing, the downstream compression section having a section which is gradually reduced
  • the two-fluid gun according to the invention can be compact and light, according to a weight of 2 to 3 kilograms, which is easily moved.
  • a gun is capable of operating at variable flow rates as a function of the outlet passage section, and with water inlet pressures of the order of 4 ⁇ 10 5 Pa and an air pressure of order of that produced by the usual site compressors for supplying jackhammers. Under certain conditions, it is possible to snow with an inlet water pressure which can go down to around 3 X 10 5 Pa. The compressed air pressure is slightly higher than that of water.
  • the peripheral wall lateral is substantially cylindrical.
  • the air intake means injects air in the form of one or several jets directed obliquely towards the peripheral wall.
  • the lateral peripheral wall forms a frustoconical narrowing connecting to the outlet passage.
  • the passage of outlet is an annular orifice.
  • the mixture of air and water comes out through the orifice in tubular form and in rotation, and it pushes the outside air forward by inducing a central depression which favors the entry of drafts outside towards the center. This likely favors the splitting of the droplets and causes a better exchange thermal with outside air and droplets.
  • the mixture is cools faster and freezes quickly before touching the ground.
  • the air expands quickly and separates the parts of water which are close to it. This favors likely the formation of snowflakes.
  • the water intake means comprise a plurality of helical channels distributed in periphery around the longitudinal axis, and the helical canals can be connected, upstream, to an annular chamber of water distribution communicating with a peripheral water inlet.
  • the air intake means may include a plurality of air channels. Air channels can advantageously be divergent to direct the air obliquely towards the peripheral wall.
  • the air channels can communicate with the mixing chamber by injection orifices distributed in a crown of a posterior frontal wall. This favors appreciably the formation of snowflakes at the outlet, presumably due to the vortex expansion of fluids during their mixing in the upstream section of the mixing chamber.
  • adjustment plate with an annular series of holes through, the adjustment plate coming to bear against the wall posterior frontal and can be pivoted around the axis longitudinal between a fully open position in which each air channel outlet is opposite a hole through the adjustment plate, and shutter positions partial in which the adjustment plate is slightly rotated around the longitudinal axis to offset at least partially the plate holes in relation to the holes of outlet of the air channels.
  • the exit passage is limited internally by the central core and is externally limited by an internal radial annular lip.
  • the central core is elongated longitudinally and is adjustable in position longitudinal along the longitudinal axis, and its section transverse is variable longitudinally.
  • the central core can additionally comprise several external radial annular ribs, of different diameters, separated by a frustoconical section.
  • the central core can advantageously be conical, allowing continuous adjustment of the cross section of the exit.
  • central core in the form of a nut reversible engaged by screwing and selectively locked in position axial on an axial threaded rod of the body.
  • exit passage form For a given exit passage form, it is naturally possible to modify the flow by varying the inlet fluid pressure. Also, for pressure at given entry, you can choose the form of the exit passage more suitable for producing quality snow according to external humidity and temperature conditions.
  • a snow cannon according to the invention comprises an elongated hollow body 1, for example generally cylindrical, having a mixing chamber 2 limited by a peripheral wall 3 and communicating with the exterior by a front exit passage 4.
  • the hollow body 1 generally develops along an axis longitudinal I-I, the peripheral wall 3 is of revolution and coaxial around the longitudinal axis I-I, and the outlet passage 4 is arranged symmetrically along the longitudinal axis I-I.
  • Mixing chamber 2 includes an upstream section expansion 201, having a substantially cross section greater than that of exit passage 4, and followed by a section downstream compression 202.
  • the downstream compression section 202 has a reduced cross section, and is connected to said audit outlet passage 4 forming a constriction 5, for example a tapered narrowing as illustrated in Figure 1.
  • the wall device 3 is cylindrical.
  • the water is introduced by water intake means comprising a plurality of channels helical like channels 6, 7, 8, 9 and 10, distributed regularly on the periphery around the longitudinal axis I-I.
  • Each channel injects the water in a jet, creating in the mixture 2 a directive preferential flow occupying part only from the cross section of the mixing chamber.
  • the circulation of fluids in a chamber cross section mixing thus exhibits strong velocity gradients.
  • the channels 6-10 constituting the means for admission of pressurized water are shaped to inject water under pressure according to a plurality of preferential directive water flows in the zone device of the mixing chamber 2 along the wall peripheral 3 and in a rotary movement around the axis longitudinal I-I of the mixing chamber 2.
  • the channels 6-10 consist of helical peripheral grooves distributed around a central cylindrical piece forming a intermediate transverse wall 21 and engaged in a tube forming the peripheral wall 3.
  • Compressed air is introduced into mixing chamber 2 by air intake means comprising a plurality of channels air such as channels 11, 12, 13, 14, 15 and 16, distributed in the central zone of the hollow body 1 around the longitudinal axis I-I.
  • air intake means comprising a plurality of channels air such as channels 11, 12, 13, 14, 15 and 16, distributed in the central zone of the hollow body 1 around the longitudinal axis I-I.
  • the air channels 11-16 are divergent and form an angle with the longitudinal axis I-I about 15 degrees, gradually moving away from the axis longitudinal I-I as they get closer to the mixture 2.
  • Each air channel 11-16 is positioned and shaped to direct an air jet so that it cuts off one of the streams preferential water directives.
  • the air intake means constituted by the air channels 11-16 are shaped to inject compressed air from the central zone of mixing chamber 2 according to one or several air jets directed obliquely towards the peripheral wall 3. In this way, the jets of compressed air enter the preferential directional flows of rotating water in the upstream section expansion 201 of the mixing chamber 2.
  • the helical water intake channels 6-10 are connect to an annular water distribution chamber 17, externally limited by an external cylindrical wall 18 extending backwards the peripheral wall 3 of the mixture 2, and internally limited by a cylindrical wall inner 19.
  • the inner cylindrical wall 19 is connected to the outer cylindrical wall 18 upstream by a crown 20 posterior, and downstream by a transverse wall intermediate 21 comprising the helical channels 6-10 and the divergent channels 11-16.
  • the cylindrical walls outside 3 and 18 are cut along plane B-B of FIG. 1, while the intermediate transverse wall 21 is not cut to reveal, according to its periphery, the channels helical such as helical channels 6 and 8.
  • the air channels 11-16 are connected to a axial air supply pipe 22, externally limited by the inner cylindrical wall 19.
  • the axial air intake manifold 22 communicates with a central air inlet 23, while the annular chamber of water distribution 17 communicates with a peripheral water inlet 24.
  • the upstream expansion section 201 of the mixing chamber 2 communicates with the water intake means and with the means air intake, and has a higher cross section to that of the water and air intake means, to authorize expansion of fluids during mixing.
  • the chamber 2 is limited upstream by a front wall posterior 203, which is for example formed by the wall intermediate transverse 21 itself.
  • the channels of air 11-16 communicate with the mixing chamber 2 by means of injection ports distributed in a coaxial ring on the posterior front wall 203.
  • the adjustment plate 25 can be pivoted around the longitudinal axis I-I between an open position complete in which each air channel outlet 11-16 is opposite a through hole of substantially the same section of the adjustment plate 25, and of the partially closed positions in which the adjustment plate 25 is slightly pivoted around the longitudinal axis I-I to offset at least partially the plate holes in relation to the holes of air channel outlet 11-16.
  • the adjustment plate 25 thus allows both create turbulence in the air entering the mixing chamber 2, and adjust the air flow.
  • the passage outlet 4 is an annular orifice, around a core central 26.
  • a plurality of outlet orifices distributed in an annular crown, or in matrix.
  • the central core 26, engaged in outlet passage 4 includes a first rib external radial annular 27, and a second annular rib external radial 28 of diameter greater than that of the first external radial annular rib 27 from which it is separated by a tapered section 29.
  • the central core 26 is preferably adjustable in position longitudinal along the longitudinal axis I-I.
  • the central core 26 is in the form of a reversible nut engaged by screwing and selectively locked in axial position on an axial threaded rod 30 of the body 1.
  • the axial rod 30 is screwed into a bore axial 31 threaded through the intermediate transverse wall 21.
  • the longitudinal position of the core is adjusted central 26 relative to an internal radial annular lip 32 of the body 1 which externally limits the outlet passage 4.
  • the outlet passage 4 is externally limited by the internal radial annular lip 32 of the body 1, and internally through the central core 26. Depending on the position of the core central 26 along the longitudinal axis I-I, it is thus possible change the shape of exit passage 4. For example, in the position illustrated in FIG. 1, the outlet passage 4 is substantially limited by the internal radial annular lip 32 and by the first external radial annular rib 27 of the core central 26.
  • the internal radial annular lip 32 is an edge bounded by two faces forming an angle between them less than about 110 °. This promotes abrupt relaxation vortex of outgoing fluids, for the formation of flakes of snow. This effect is further increased in the presence of a rib external radial annular 27 of the central core 26 facing the lip internal radial annular 32.
  • the rod axial 30 also serves to hold the adjustment plate 25: the rod 30 passes through a central hole in the adjustment plate 25, and the adjustment plate 25 is kept pressed against the wall transverse intermediate 21 by a tightening nut 33 screwed on the axial rod 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Claims (15)

  1. Schneekanone zur Herstellung von Kunstschnee durch Zerstäuben einer Mischung aus Luft und Wasser, mit einem Hohlkörper (1), der eine Mischkammer (2) aufweist, die entsprechend einer Längsachse (I-I) ausgerichtet ist, durch eine umlaufende Seitenwand (3) begrenzt ist und mit der Umgebung durch eine frontale Austrittsöffnung (4) kommuniziert, mit Mitteln zum Zuführen von Wasser durch Einspritzen von Wasser unter Druck in die Mischkammer (2) mit einer oder mehreren Vorzugsflußrichtungen in einer Umfangszone der Mischkammer (2) längs der Umfangswand (3) und mit einer Drehbewegung um die Längsachse (I-I) der Mischkammer (2), und mit Mitteln (11-16) zur Zufuhr von Luft, die so ausgebildet sind, daß komprimierte Luft in die Mischkammer (2) von der zentralen Zone der Mischkammer (2) aus injiziert wird, wobei die Mittel (11-16) zur Zufuhr von Luft so ausgebildet sind, daß die Luft in Form von einem oder mehreren Luftstrahlen so injiziert wird, daß jeder einen der genannten Flüsse von Wasser mit der Vorzugsflußrichtung schneidet, und wobei die Mischkammer (2) einen stromaufwärtigen Expansionsabschnitt (201) aufweist, dem ein stromabwärtiger Kompressionsabschnitt (202) folgt, wobei der stromaufwärtige Expansionsabschnitt (201) mit den Mitteln zur Zufuhr von Wasser und mit den Mitteln zur Zufuhr von Luft kommuniziert und einen Querschnitt aufweist, der größer ist als der Querschnitt der Mittel zur Zufuhr von Wasser und Luft, um die Expansion der Fluide während deren Mischung zu ermöglichen, wobei der stromabwärtige Kompressionsabschnitt (202) einen Querschnitt hat, der sich zunehmend in Richtung auf den Ausgang hin verringert, um die Mischung zu komprimieren und bis zur Austrittsöffnung (4) zu leiten.
  2. Schneekanone nach Anspruch 1, dadurch gekennzeichnet, daß die seitliche Umfangswand (3) in dem stromaufwärtigen Expansionsabschnitt (201) der Mischkammer (2) im wesentlichen zylindrisch ist.
  3. Schneekanone nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Mittel (11-16) zur Zufuhr von Luft in dem stromaufwärtigen Expansionsabschnitt (201) deren Mischkammer (2) die Luft in Form eines oder mehrerer Strahlen injizieren, die schräg zur Umfangswand (3) gerichtet sind.
  4. Schneekanone nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die seitliche Umfangswand (3) innerhalb des stromabwärtigen Kompressionsabschnittes (202) eine konische Verengung (5) bildet, die zur Austrittsöffnung (4) mündet.
  5. Schneekanone nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Austrittsöffnung (4) eine ringförmige Öffnung ist.
  6. Schneekanone nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Mittel zur Zufuhr von Wasser schraubenförmige Kanäle (6-10) aufweisen, die stromaufwärts in eine ringförmige Kammer zur Verteilung von Wasser (17) münden, die mit einem um den Umfang (24) herum angeordneten Eintritt für Wasser kommuniziert.
  7. Schneekanone nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Mittel zur Zufuhr von Luft eine Vielzahl von Luftkanälen (11-16) aufweisen, die in der zentralen Zone des Hohlkörpers (1) um die Längsachse (I-I) herum angeordnet sind.
  8. Schneekanone nach Anspruch 7, dadurch gekennzeichnet, daß die Luftkanäle (11-16) stromaufwärts in ein axiales Luftzufuhrrohr (22) münden, das mit einem zentralen Lufteinlaß (23) kommuniziert.
  9. Schneekanone nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, daß die Luftkanäle (11-16) mit der Mischkammer (2) mittels Einspritzöffnungen kommunizieren, die entsprechend einer Krone an einer rückseitigen Frontwand (203) verteilt angeordnet sind.
  10. Schneekanone nach Anspruch 9, dadurch gekennzeichnet, daß sie ein Stellblech (25) aufweist, das von einer ringförmig angeordneten Reihe von Durchgangslöchern durchbohrt ist, wobei das Stellblech (25) gegen die rückwärtige Frontwand (203) anliegt und um die Längsachse (I-I) zwischen einer vollständigen Öffnungsstellung, in welcher jede Ausgangsöffnung des Luftkanales (11-16) in Deckung mit einem quer verlaufenden Loch des Stellbleches (25) liegt, drehbar ist und partiellen Abdeckungspositionen, in denen das Stellblech (25) geringfügig um die Längsachse (I-I) gedreht ist, um die Löcher des Bleches zumindest teilweise gegenüber den Austrittsöffnungen der Luftkanäle (11-16) abzudecken.
  11. Schneekanone nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Austrittsöffnung (4) im Inneren durch einen zentralen Kern (26) und nach außen hin durch eine ringförmige radiale innere Lippe (32) begrenzt ist.
  12. Schneekanone nach Anspruch 11, dadurch gekennzeichnet, daß die ringförmige radiale innere Lippe (32) eine Kante ist, die durch zwei Flächen begrenzt ist, die zwischen sich einen Winkel von kleiner 110° bilden.
  13. Schneekanone nach einem der Ansprüche 11 oder 12, dadurch gekennzeichnet, daß der zentrale Kern (26) in Längsrichtung verlängert ist und hinsichtlich seiner Längsposition längs der Längsachse (I-I) einstellbar ist, und daß sein Querschnitt in Längsrichtung variabel ist.
  14. Schneekanone nach Anspruch 13, dadurch gekennzeichnet, daß der zentrale Kern (26) mehrere ringförmige radiale äußere Rippen (27, 28) mit unterschiedlichen Durchmessern aufweist, die durch einen konischen Teilabschnitt (29) voneinander getrennt sind.
  15. Schneekanone nach einem der Ansprüche 13 oder 14, dadurch gekennzeichnet, daß der zentrale Kern (26) eine Mutter ist, die durch Aufschrauben lösbar mit einer axialen Schraubenspindel (30) des Körpers (1) verbunden ist und in axialer Position einstellbar blockiert ist.
EP99946082A 1998-09-11 1999-08-31 Schneekanone Expired - Lifetime EP1114287B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9811462A FR2783310B1 (fr) 1998-09-11 1998-09-11 Canon a neige
FR9811462 1998-09-11
PCT/EP1999/006421 WO2000016026A1 (fr) 1998-09-11 1999-08-31 Canon a neige

Publications (2)

Publication Number Publication Date
EP1114287A1 EP1114287A1 (de) 2001-07-11
EP1114287B1 true EP1114287B1 (de) 2002-07-03

Family

ID=9530422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99946082A Expired - Lifetime EP1114287B1 (de) 1998-09-11 1999-08-31 Schneekanone

Country Status (5)

Country Link
EP (1) EP1114287B1 (de)
AT (1) ATE220193T1 (de)
DE (1) DE69902048D1 (de)
FR (1) FR2783310B1 (de)
WO (1) WO2000016026A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102019242A (zh) * 2010-11-01 2011-04-20 哈尔滨工程大学 一种造雪用双进口雾化喷头
ITMI20150534A1 (it) * 2015-04-14 2016-10-14 Cortech S R L Ugello perfezionato per apparecchiature per la produzione artificiale di neve

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005016550A1 (en) 2003-08-13 2005-02-24 Unilever Plc Domestic spray device
WO2005016548A1 (en) * 2003-08-13 2005-02-24 Unilever Plc Nozzle for a spray device
NO346615B1 (en) * 2020-10-09 2022-10-31 Lindloev Odd Ivar A snowmaking nozzle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788245A (en) * 1953-05-15 1957-04-09 Robert A Gilmour Disk control valves for sprayers
FR1544975A (fr) * 1967-11-17 1968-11-08 Root Lowell Mfg Co Procédé et appareil pour émettre d'une manière réglée un brouillard de particules liquides
AT320690B (de) * 1973-02-22 1975-02-25 Karl Kiegerl Vorrichtung zum Erzeugen künstlichen Schnees
US4095747A (en) * 1976-05-17 1978-06-20 Specialty Manufacturing Company High pressure coaxial flow nozzles
FR2376384A1 (en) * 1976-12-30 1978-07-28 Cecil Snow cannon for making ski slopes - has adjustable nozzles for water and air to suit different ambient conditions
DE2941052A1 (de) * 1979-10-10 1981-03-12 Heinz 8581 Heinersreuth Fischer Vorrichtung zur erzeugung von schnee unter beruecksichtigung der umweltschutzgesetze
DE3274901D1 (en) * 1982-01-18 1987-02-05 Michael Manhart Snow gun
JPH0827114B2 (ja) * 1992-08-24 1996-03-21 鹿島建設株式会社 降雪機

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102019242A (zh) * 2010-11-01 2011-04-20 哈尔滨工程大学 一种造雪用双进口雾化喷头
ITMI20150534A1 (it) * 2015-04-14 2016-10-14 Cortech S R L Ugello perfezionato per apparecchiature per la produzione artificiale di neve
EP3081884A1 (de) * 2015-04-14 2016-10-19 Cortech S.r.l. Wassersprühdüse für eine schneekanone

Also Published As

Publication number Publication date
FR2783310B1 (fr) 2000-10-13
FR2783310A1 (fr) 2000-03-17
WO2000016026A1 (fr) 2000-03-23
ATE220193T1 (de) 2002-07-15
EP1114287A1 (de) 2001-07-11
DE69902048D1 (de) 2002-08-08

Similar Documents

Publication Publication Date Title
EP0018280B1 (de) Hochdruckschneekanone und Batterie solcher Schneekanonen
FR2481148A1 (fr) Buse de pulverisation par atomisation
FR2488153A1 (fr) Buse a haut rendement
EP0239462B1 (de) Brennstoffeinspritzeinrichtung mit axial-centripetaler Luftzuführung
CA2638226C (fr) Melangeur de fluide gazeux
EP2846115B1 (de) Vorrichtung zum Herstellen von Kunstschnee, und Herstellungsverfahren von Kunstschnee
FR2661737A1 (fr) Machine de production de neige.
EP1114287B1 (de) Schneekanone
CA2319692A1 (fr) Generateur de particules de glace, de neige, ou nucleateur, integre dans une tete de pulverisation d'eau
FR2480417A1 (fr) Machine a faire de la neige et son procede d'utilisation
FR2500331A1 (fr) Buse de pulverisation binaire
EP1042072A1 (de) Zerstäubungsdüse mit statischem mittel zur hemmung der strömung
EP1386668B1 (de) Hohlen, dünnwandigen Strahl erzeugende Wassersprühvorrichtung zur Bildung von Kunstschnee
FR2528341A1 (fr) Chalumeau pour l'oxycoupage de metaux
FR2594528A1 (fr) Embout de melange de fluides pour appareil de fabrication de neige artificielle
FR2784905A1 (fr) Tete de pulverisation polyvalente utilisable notamment pour la fabrication de neige artificielle
EP0967434B1 (de) Brenner mit konzentrischer Luftzufuhr und zentral angeordnetem Stabilisator
FR3079814A1 (fr) Dispositif de lutte contre l’incendie comprenant un drone energetiquement autonome
WO1994019655A1 (fr) Perfectionnement aux canons a neige
OA10241A (fr) Procédé de fabrication d'un tuyau poreux obtenue par ledit procédé et utilisation d'un tel tuyau en irrigation
EP3819566A1 (de) Sprühvorrichtung für die kunstschneeproduktion, und ihr einsatzverfahren
CA2159108A1 (fr) Buse de pulverisation et dispositif de pulverisation d'un melange d'eau et d'air utilisant ladite buse
FR2549579A1 (fr) Bruleur a gaz pour pistolet de metallisation
FR2483265A1 (fr) Procede et dispositif pour revetir la surface interne d'un tuyau, conduite, canalisation ou analogue
FR2458749A1 (fr) Bruleur oxygene-gaz perfectionne

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010228

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010903

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR IT LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 20020703

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020703

REF Corresponds to:

Ref document number: 220193

Country of ref document: AT

Date of ref document: 20020715

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

REF Corresponds to:

Ref document number: 69902048

Country of ref document: DE

Date of ref document: 20020808

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: DICC REALISATIONS S.A.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021005

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ZIMMERLI, WAGNER & PARTNER AG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030130

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 1114287E

Country of ref document: IE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030404

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20080829

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080811

Year of fee payment: 10

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: DICC REALISATIONS S.A.

Free format text: DICC REALISATIONS S.A.#PLACE SAINT FRANCOIS 5 CHEZ BERNARD DE CHEDID#1003 LAUSANNE (CH) -TRANSFER TO- DICC REALISATIONS S.A.#PLACE SAINT FRANCOIS 5 CHEZ BERNARD DE CHEDID#1003 LAUSANNE (CH)

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090831