EP1114287B1 - Canon a neige - Google Patents
Canon a neige Download PDFInfo
- 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
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
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- 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)
Description
- la figure 1 est une vue de côté en coupe longitudinale d'une structure de canon à neige selon un mode de réalisation de la présente invention ;
- la figure 2 est une vue en bout du canon à neige de la figure 1 ;
- la figure 3 est une vue d'avant en coupe selon le plan A-A de la figure 1 ; et
- la figure 4 est une vue de dessus en coupe horizontale partielle selon le plan B-B de la figure 1.
Claims (15)
- Canon à neige pour la production de neige artificielle par pulvérisation de mélange d'air et d'eau, comprenant un corps creux (1) ayant une chambre de mélange (2) orientée selon un axe longitudinal (I-I), limitée par une paroi périphérique (3) latérale et communiquant avec l'extérieur par un passage de sortie (4) frontal, ayant des moyens d'admission d'eau pour injecter de l'eau sous pression dans la chambre de mélange (2) en un ou plusieurs flux préférentiels directifs en zone périphérique de la chambre de mélange (2) le long de la paroi périphérique (3) et selon un mouvement rotatif autour de l'axe longitudinal (I-I) de la chambre de mélange (2), et ayant des moyens d'admission d'air (11-16) conformés pour injecter de l'air comprimé dans la chambre de mélange (2) depuis la zone centrale de chambre de mélange (2), les moyens d'admission d'air (11-16) étant conformés pour injecter l'air sous forme d'un ou plusieurs jets d'air dirigés chacun pour couper l'un desdits flux préférentiels directifs d'eau, et la chambre de mélange (2) comprenant un tronçon amont d'expansion (201) suivi d'un tronçon aval de compression (202), le tronçon amont d'expansion (201) communiquant avec les moyens d'admission d'eau et avec les moyens d'admission d'air et présentant une section transversale supérieure à celle des moyens d'admission d'eau et d'air pour autoriser l'expansion des fluides pendant leur mélange, le tronçon aval de compression (202) ayant une section qui se réduit progressivement en direction de la sortie pour comprimer le mélange et le conduire jusqu'au passage de sortie (4).
- Canon à neige selon la revendication 1, caractérisé en ce que, dans le tronçon amont d'expansion (201) de la chambre de mélange (2), la paroi périphérique (3) latérale est sensiblement cylindrique.
- Canon à neige selon l'une des revendications 1 ou 2, caractérisé en ce que, dans le tronçon amont d'expansion (201) de la chambre de mélange (2), les moyens d'admission d'air (11-16) injectent l'air sous forme d'un ou plusieurs jets dirigés obliquement vers la paroi périphérique (3).
- Canon à neige selon l'une quelconque des revendications 1 à 3, caractérisé en ce que, dans le tronçon aval de compression (202), la paroi périphérique (3) latérale forme un rétrécissement (5) tronconique se raccordant au passage de sortie (4).
- Canon à neige selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le passage de sortie (4) est un orifice de forme annulaire.
- Canon à neige selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les moyens d'admission d'eau comprennent des canaux hélicoïdaux (6-10) se raccordant, en amont, à une chambre annulaire de distribution d'eau (17) communiquant avec une entrée d'eau périphérique (24).
- Canon à neige selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les moyens d'admission d'air comprennent une pluralité de canaux d'air (11-16) répartis dans la zone centrale du corps creux (1) autour de l'axe longitudinal (I-I).
- Canon à neige selon la revendication 7, caractérisé en ce que les canaux d'air (11-16) se raccordent, en amont, à une tubulure axiale d'amenée d'air (22) communiquant avec une entrée d'air centrale (23).
- Canon à neige selon l'une des revendications 7 ou 8, caractérisé en ce que les canaux d'air (11-16) communiquent avec la chambre de mélange (2) par des orifices d'injection répartis selon une couronne d'une paroi frontale postérieure (203).
- Canon à neige selon la revendication 9, caractérisé en ce qu'il comprend une plaque de réglage (25) percée d'une série annulaire de trous traversants, la plaque de réglage (25) venant en appui contre la paroi frontale postérieure (203) et pouvant être pivotée autour de l'axe longitudinal (I-I) entre une position d'ouverture complète dans laquelle chaque orifice de sortie de canal d'air (11-16) est en regard d'un trou traversant de la plaque de réglage (25), et des positions d'obturation partielle dans lesquelles la plaque de réglage (25) est légèrement pivotée autour de l'axe longitudinal (I-I) pour décaler au moins partiellement les trous de plaque par rapport aux orifices de sortie des canaux d'air (11-16).
- Canon à neige selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le passage de sortie (4) est limité intérieurement par un noyau central (26) et limité extérieurement par une lèvre annulaire radiale interne (32).
- Canon à neige selon la revendication 11, caractérisé en ce que la lèvre annulaire radiale interne (32) est une arête limitée par deux faces faisant entre elles un angle inférieur à 110°.
- Canon à neige selon l'une des revendications 11 ou 12, caractérisé en ce que le noyau central (26) est allongé longitudinalement et est réglable en position longitudinale le long de l'axe longitudinal (I-I), et sa section transversale est variable longitudinalement.
- Canon à neige selon la revendication 13, caractérisé en ce que le noyau central (26) comporte en outre plusieurs nervures annulaires radiales externes (27, 28), de diamètres différents, séparées par un tronçon tronconique (29).
- Canon à neige selon l'une des revendications 13 ou 14, caractérisé en ce que le noyau central (26) est un écrou réversible engagé par vissage et bloqué sélectivement en position axiale sur une tige filetée (30) axiale du corps (1).
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 (fr) | 2001-07-11 |
EP1114287B1 true EP1114287B1 (fr) | 2002-07-03 |
Family
ID=9530422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99946082A Expired - Lifetime EP1114287B1 (fr) | 1998-09-11 | 1999-08-31 | Canon a neige |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1114287B1 (fr) |
AT (1) | ATE220193T1 (fr) |
DE (1) | DE69902048D1 (fr) |
FR (1) | FR2783310B1 (fr) |
WO (1) | WO2000016026A1 (fr) |
Cited By (2)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MXPA06001648A (es) | 2003-08-13 | 2006-04-28 | Unilever Nv | Dispositivo domestico de rocio. |
WO2005016548A1 (fr) * | 2003-08-13 | 2005-02-24 | Unilever Plc | Buse pour dispositif de pulverisation |
NO346615B1 (en) * | 2020-10-09 | 2022-10-31 | Lindloev Odd Ivar | A snowmaking nozzle |
Family Cites Families (8)
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 |
-
1998
- 1998-09-11 FR FR9811462A patent/FR2783310B1/fr not_active Expired - Fee Related
-
1999
- 1999-08-31 WO PCT/EP1999/006421 patent/WO2000016026A1/fr active IP Right Grant
- 1999-08-31 EP EP99946082A patent/EP1114287B1/fr not_active Expired - Lifetime
- 1999-08-31 AT AT99946082T patent/ATE220193T1/de active
- 1999-08-31 DE DE69902048T patent/DE69902048D1/de not_active Expired - Lifetime
Cited By (3)
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 (fr) * | 2015-04-14 | 2016-10-19 | Cortech S.r.l. | Buse de vaporisation d'eau d'un canon à neige |
Also Published As
Publication number | Publication date |
---|---|
FR2783310A1 (fr) | 2000-03-17 |
ATE220193T1 (de) | 2002-07-15 |
DE69902048D1 (de) | 2002-08-08 |
WO2000016026A1 (fr) | 2000-03-23 |
EP1114287A1 (fr) | 2001-07-11 |
FR2783310B1 (fr) | 2000-10-13 |
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