EP1456588A1 - Beschneiungsvorrichtung und verfahren zum betrieb einer beschneiungsvorrichtung - Google Patents
Beschneiungsvorrichtung und verfahren zum betrieb einer beschneiungsvorrichtungInfo
- Publication number
- EP1456588A1 EP1456588A1 EP02792959A EP02792959A EP1456588A1 EP 1456588 A1 EP1456588 A1 EP 1456588A1 EP 02792959 A EP02792959 A EP 02792959A EP 02792959 A EP02792959 A EP 02792959A EP 1456588 A1 EP1456588 A1 EP 1456588A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- air
- nozzle
- jet pump
- snowmaking
- 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
Links
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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
-
- 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
- F25C2303/046—Snow making by using low pressure air ventilators, e.g. fan type snow canons
-
- 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 invention relates to a snow-making device according to the preamble of claim 1 and a method for operating a snow-making device.
- snow-making devices In winter sports areas, snow-making devices (so-called “snow cannons”) are used in various configurations.
- DE 196 27 586 A1 gives an overview of known types of snowmaking devices.
- high-pressure cannons close to the ground high-pressure cannons in the form of a lance (mast design) and low-pressure cannons with a propeller should be mentioned.
- High-pressure cannons near the ground use compressed air to create a water-air mist that is expelled at high speed to achieve the desired range and active cooling through rapid air expansion. Considerable amounts of compressed air are required.
- a central compressor for several cannons is provided, which has an output of, for example, 15-20 kW per cannon.
- the water-air nozzles are arranged at a height of 8 - 12 m above the runway. Due to the longer drop distance, lower ejection speeds can be used. Accordingly, the air compressor only has to have a relatively low power of, for example, 5 kW per lance for high-pressure guns.
- a cannon of this type is shown in DE 19627 586 A1.
- a main air flow is generated by a propeller, into which freeze nuclei are sprayed by means of nucleator nozzles and small water droplets are sprayed in by means of water nozzles.
- the nucleator nozzles are designed as water-air nozzles. They are operated with compressed air and pressurized water and atomize a water-air mixture. The compressed air relaxes as it exits the nucleator nozzles, thereby cooling water droplets in the water-air mixture to well below freezing, so that small ice crystals form form. The droplets emitted by the water nozzles are deposited on these freezing germs and thus form the snow crystal.
- the snowmaking device requires compressed air, which must be provided by a local or central compressor. This causes an additional, considerable expenditure of energy.
- the compressor increases manufacturing costs, requires maintenance and causes noise. Furthermore, functionality is not always guaranteed, especially at low temperatures.
- a compressor attached to the snow cannon increases its weight by around 120 kg, while a central compressor requires the installation of compressed air lines.
- a snow cannon in the form of a propeller which does not require an additional compressed air source.
- the freezing germs are formed here by an auxiliary nozzle which is arranged in the main air flow.
- a correspondingly larger propeller drive must be provided.
- the object of the invention is to avoid all or part of the disadvantages of the prior art.
- the invention is preferably intended to provide a snow-making device which does not require an air compressor or only an air compressor with a relatively low output.
- the snowmaking device is particularly intended to make particularly good use of energy which is converted into heat unused in the case of snowmaking systems according to the prior art.
- this object is achieved in whole or in part by a snow-making device with the features of claim 1 and by a method for operating a snow-making device with the features of claim 11.
- the dependent claims define preferred further developments of the invention.
- the invention is based on the basic idea of using at least one jet pump (liquid jet gas compressor) for generating the water-air mixture expelled by at least one water-air nozzle.
- the jet pump works without moving parts and is cheap, light and reliable.
- ambient air or air compressed by a compressor can be supplied to the jet pump.
- the air compressor that is mostly required in the prior art is completely eliminated; in the second case, the compressor can be dimensioned correspondingly smaller and more economical.
- the energy required to operate the jet pump is provided to the snowmaking device according to the invention via the operating pressure of the water supplied.
- a surprising synergy effect of the solution according to the invention is that in typical applications, namely in the snowmaking of ski slopes, most snowmaking devices can use energy that would be lost in systems according to the prior art.
- the water supply to the snow-making equipment arranged on a mountain slope is usually provided by a pump system located in the valley.
- the pumping system feeds a pressure line leading to the mountain, to which the snowmaking equipment is connected.
- the line pressure required for the snowmaking device must be available, e.g. 15-20 bar.
- the line pressure in the lower and middle slope area is significantly higher and is e.g. 40 - 80 bar or more.
- connection points of the pressure line have so-called hydrants which, like a throttle valve, limit the operating pressure for the connected snow-making devices accordingly.
- the Hydrants convert significant amounts of energy into heat. For example, with a line pressure of 40 bar, an operating pressure of the snow-making device of 10 bar and a water consumption of 20 m 3 / h, the throttle output is approximately 16 kW. This energy, which remains unused in systems according to the prior art, can be utilized by the invention.
- ambient air or already pre-compressed air can be supplied to each jet pump.
- at least one multi-stage jet pump is used in order to obtain a particularly high air compression.
- the jet pump (or at least one stage of the multi-stage jet pump) preferably has a driving nozzle for the water, a suction nozzle for the air, a mixing chamber for mixing the water emerging from the driving nozzle with the air flowing through the suction nozzle and a diffuser for compressing the water -Air mixture.
- a swirl body is provided in the suction nozzle.
- Embodiments are particularly preferred in which more than 50% or more than 75% or more than 90% or essentially all of the water throughput of the snow-making device passes through the jet pump or jet pumps and as a water-air mixture through the water-air nozzle or the water-air nozzle is ejected.
- the energy provided by the water is used particularly well.
- Preferably more than 50% or more than 75% or more than 90% or essentially all of the nozzles of the snow-making device are designed as water-air nozzles (in contrast to pure water nozzles such as in the case of low-pressure cannons according to the prior art). A particularly large amount of frozen germs is then generated.
- the effective working pressure of each jet pump is preferably at least 10 bar or at least 20 bar or at least 30 bar.
- the snow-making device is preferably for unthrottled or direct connection to one Water pressure line provided with a line pressure of more than 20 bar or more than 30 bar or more than 40 bar.
- the at least one jet pump has a nozzle needle through which the water throughput and / or the mixing ratio of the water-air mixture expelled (and thus the nature of the snow produced) can be changed.
- the setting of the nozzle needle can be motor-driven or manual, in particular environmental parameters such as temperature, humidity, etc. can be evaluated.
- the nozzle needle is pierced axially to increase the air flow of the jet pump.
- the invention can be provided to supply different water-air nozzles or groups of water-air nozzles simultaneously with water-air mixtures of different mixing ratios during the operation of the snow-making device.
- the water-air mixtures can be generated by differently configured or set jet pumps, or they can be derived from a single jet pump (e.g. at different points in the mixing room or the diffuser).
- the snowmaking device according to the invention can be designed in all known designs.
- design variants in lance construction and as a propeller machine are provided.
- the snow-making device preferably has a motor-driven propeller for generating a main air flow, and the water-air nozzles are in one or several nozzle rings arranged so that they discharge the water-air mixture into the main air stream.
- a vertical or inclined lance rod is provided in preferred configurations, the end of which is remote from the floor and has a nozzle head with one or more water-air nozzles.
- the at least one jet pump can be arranged at the nozzle head or at the bottom end of the lance rod.
- the lance rod is preferably designed as a tube through which the water supplied is transported in the former case and the water-air mixture in the second case.
- FIG. 2 is a side view of a first embodiment of the invention in the form of a propeller machine
- FIG. 3 is a front view of the propeller machine of FIG. 2 in the direction of arrow III,
- FIG. 4 is an enlarged bottom view of the pump assembly shown in FIG. 2 from the side in the direction of arrow IV,
- FIG. 5 is an enlarged sectional view of area V of FIG. 2 along the line V - V in FIG. 4,
- FIG. 6 is a further enlarged sectional view of the pump tube shown in FIG. 5
- 7 is a side view of a second embodiment of the invention in lance design
- FIG. 8 is an enlarged side view of area VIII of FIG. 7, sectioned along the longitudinal axis,
- FIG. 9 is an enlarged side view of the area XI of FIG. 7, sectioned along the longitudinal axis,
- FIG. 10 shows a cross section through the nozzle head shown in FIG. 9 along the line X - X,
- FIG. 11 is a perspective view obliquely from above of a nozzle head and jet pumps according to a further embodiment of the invention.
- FIG. 12 is a front view of the nozzle head of FIG. 11,
- FIG. 13 is a top view of the nozzle head of FIG. 11,
- FIG. 14 is a longitudinal sectional view taken along the line XIV - XIV in Fig. 12,
- FIG. 16 is a cross-sectional view taken along the line XVI - XVI in FIG. 13.
- FIG. 1 essential elements of a snow-making device are shown, which have a jet pump 10 and several water-air nozzles 12.
- the jet pump 10 is designed in a manner known per se with a driving nozzle 14 and a pump tube 16, the pump tube 16 having suction nozzles 18, a mixing chamber 20 and a diffuser 22.
- the driving nozzle 14 has a circular nozzle opening with a diameter of, for example, 4 mm or 5 mm.
- the suction nozzles 18 are designed as bores with a diameter of 12 mm in the pump tube 16, and the mixing space 20 is here a mixing tube with constant cross section.
- a swirl body (not shown) is arranged in the drive nozzle 14.
- the jet pump 10 is supplied with water W at a pressure of approximately 25-40 bar or higher via a pressure line (not shown).
- the water W serves as a propellant here; the course of the water drive flow is indicated in Fig. 1 with a solid arrow.
- the water W emerges from the jet nozzle 14 as a jet at high speed and entrains air A, which enters the pump tube 16 through the suction nozzles 18 (the inflow direction of the air A is illustrated in FIG. 1 by dotted arrows).
- the speeds of the water W and the air A equalize, and the two media mix intensively.
- the high speed of the water-air mixture M thus created is partly converted back into pressure in the diffuser 22.
- the water-air mixture M now reaches the water-air nozzles 12, through which it is expelled (the flow course of the mixture M is indicated in FIG. 1 by dash-dotted arrows).
- the air suddenly relaxes and cools the finest water droplets to well below the freezing point.
- further droplets of the water-air mixture M accumulate on these freezing germs and form snow crystals.
- the snowmaking device shown in FIG. 2 has a main pipe 24 in which an electric motor 26 with a flanged propeller 28 is arranged.
- the propeller 28 driven by the electric motor 26 with an output of approximately 5-15 kW generates a main flow S, the direction of which is indicated in FIG. 2 by a dashed arrow.
- the main pipe 24 tapers in the direction of flow to a diameter of approximately 56 cm.
- a nozzle assembly 30 connected on the outlet side to the main pipe 24 contains a plurality of water-air nozzles 12 (FIG. 1) which are arranged in a plurality of nozzle rings 32A, 32B, 32C, 32D.
- a distributor 34 is connected on the one hand to the nozzle assembly 30 and on the other hand to a number of jet pumps 10 from only one is visible in FIG. 2.
- the snow-making device has only water-air nozzles 12, which are fed with the water-air mixture M generated by the jet pumps 10. No pure water jets are provided.
- FIG. 3 illustrates in particular the concentric arrangement of the four nozzle rings 32A, 32B, 32C, 32D.
- each of the nozzle rings 32A, 32B, 32C, 32D is designed as an octagon with 64 or 72 water-air nozzles 12.
- a circumferential channel of each nozzle ring 32A, 32B, 32C, 32D is connected to the distributor 34
- FIG 4 shows the distributor 34 and three jet pumps 10, which are connected to the pressurized water supply via a connector 36.
- Each jet pump 10 supplies one of the nozzle rings 32A, 32B, 32C with the water-air mixture M via an associated connecting channel 38A, 38B, 38C.
- the nozzle ring 32D is connected to a further jet pump 10 via two further connecting channels 38D, 38E (in FIG 4 not shown) connected.
- valves are provided in alternative embodiments which can be arranged on the inlet side in the connecting piece 36 or on the outlet side in the distributor 34. Appropriate control of these valves enables the nozzle rings 32A, 32B, 32C, 32D to be switched on and off individually, one or more or all of the nozzle rings 32A, 32B, 32C, 32D being active. In this embodiment it is possible to regulate the water throughput and thus the snow-making capacity with little effort.
- FIG. 5 shows, by way of example, a section through the nozzle assembly 30, which in each case runs through one nozzle bore 40 of the four nozzle rings 32A, 32B, 32C, 32D.
- the nozzle bores 40 are provided for receiving the water-air nozzles 12, for example in the design shown in FIG. 1. Suitable water-air nozzles 12 are commercially available as inserts for the nozzle bores 40 and as such are not the subject of the present invention.
- the pump tube 16 is shown enlarged in FIG. 6.
- the suction nozzles 18 are arranged as four radially offset bores, each offset by 90 °, in the inlet-side section of the pump tube 16.
- the snow-making device is designed in the form of a lance.
- An anchoring 42 located in the ground fixes a holder 44 which has two supporting rods 46, 48 which are connected to one another in an articulated manner.
- the snowmaking device in the narrower sense is attached to the upper support rod 48. It has, for example, an 8 to 12 m long lance rod 50 in the form of a tube, at the upper end of which a nozzle head 52 and at the lower end of which a pump element 54 are arranged.
- the pump element 54 has a jet pump 10 'and a connection elbow 56 connected to it on the inlet side.
- the pressurized water W required for operation is fed to the jet pump 10 'via the connection elbow 56.
- the jet pump 10 ' is configured similarly to the jet pump 10 from FIG. 1 with a drive nozzle 14' and a pump tube 16 'with a mixing chamber 20' and a diffuser 22 '.
- a connecting piece 58 has bores for the inlet of the ambient air A, which act as suction nozzles 18 '.
- the connector 58 connects the elbow 56, the propulsion nozzle 14 'and the pump tube 16' into an assembly.
- the jet pump 10 ' is connected to the tubular lance rod 50 via a sleeve 64.
- the jet pump 10 ' also has a pierced nozzle needle 60 which is mounted in a guide 62 so as to be longitudinally displaceable.
- the pump properties of the jet pump 10 ' can be adapted to the requirements by a suitable setting of the nozzle needle 60; in particular, it is possible to vary the water throughput and / or the mixing ratio of water and air in the water-air mixture M.
- the setting can be made manually (e.g. during installation or maintenance of the system) or automatically (e.g. depending on the desired amount of snow or weather conditions).
- the nozzle needle 60 is drilled along its longitudinal axis, so that further ambient air A can be introduced into the propellant jet of the jet pump 10 'in order to increase the pumping power increase.
- a non-pierced nozzle needle 60 which still have the advantage of improved controllability.
- the nozzle head 52 shown in detail in FIG. 9 is releasably connected to the upper end of the lance rod 50 (FIG. 7) by a connection and sealing assembly 66.
- the nozzle head 52 in the present example has a total of six bores 68 for receiving a water-air nozzle 12 (FIG. 1) in the form of a nozzle insert known per se.
- the water-air mixture M generated by the jet pump 10 ′ is fed into the lance rod 50 and from there into the nozzle head 52.
- the water-air mixture M emerges as a fine spray from the water-air nozzles 12 (FIG. 1). Again, the expansion forms freeze nuclei, from which snow crystals form during the relatively long fall to the ground due to the accumulation of further water droplets.
- the tubular lance rod 50 is used to transport the water-air mixture M from the jet pump 10 'to the nozzle head 52. Further lines, whether for compressed air or for water, are not required. It is only necessary to establish a connection between the connection elbow 56 and a water pressure line which is already installed next to the slope in existing slope installations.
- jet pumps 10 ' are also used in the propeller machine according to FIG. 2 in order to maintain the setting options provided by the nozzle needle 60 there as well.
- FIG. 11-16 show, as a further exemplary embodiment of the invention, a nozzle head 52 'which, together with two jet pumps 10 ", forms a compact assembly.
- the assembly is intended to be used at the high end of a lance rod - at a height of, for example 10 m - to be attached.
- the present exemplary embodiment represents a variant 7 that the nozzle head 52 of FIG. 7 was replaced by the nozzle head 52 'in the present case, and that the pump element 54 in the form of the jet pumps 10 "was attached directly to the nozzle head 52' Combination of the jet pumps 10 "with the nozzle head 52 'prevents segregation of the water-air mixture M - as could possibly occur in the lance rod 50 in the exemplary embodiment of FIG. 7.
- the jet pumps 10 each have a driving nozzle 14" and a plurality of suction nozzles 18 ".
- the nozzle head 52 ' is provided with a total of ten screwed-in water-air nozzles 12'. of which the four shown on the right in FIGS. 11-14 form a first group and the six shown in the center in FIGS. 11-14.
- the driving nozzles 14 "of the two jet pumps 10" have different ones
- the jet pump 10 "with the smaller propellant nozzle diameter supplies the first group of the four water-air nozzles 12 ', and the jet pump 10" with the larger propellant nozzle diameter supplies the second group of the six water-air Nozzles 12 '.
- a three-stage water control is achieved by either only the first group of the driving nozzles 14 "or only the second group of the driving nozzles 14" or both b Nozzle groups are activated.
- flat nozzles are used as water-air nozzles 12 'in order to achieve the fastest possible relaxation of the air and thus to cool down the smallest water drops, which then freeze and thus form the freezing germs for the remaining water.
- FIGS. 11-16 Another advantage of the embodiment according to FIGS. 11-16 compared to that of FIG. 7 is the better use of energy. Since the jet pumps 10 "preferably operate at a pressure ratio of approximately 3: 1, the pressure drop of approximately 1 bar in the lance tube 50 projecting approximately 10 m upwards must be increased by approximately 3 bar higher pressure in the exemplary embodiment of FIG. 7 of the driving nozzle 14 'of the jet pump 10' Embodiment of Fig. 11 - Fig. 16 only about 1 bar additional water pressure required to achieve the desired motive nozzle pressure.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02792959A EP1456588B1 (de) | 2001-12-11 | 2002-12-10 | Beschneiungsvorrichtung und verfahren zum betrieb einer beschneiungsvorrichtung |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01129558 | 2001-12-11 | ||
EP01129558 | 2001-12-11 | ||
EP02792959A EP1456588B1 (de) | 2001-12-11 | 2002-12-10 | Beschneiungsvorrichtung und verfahren zum betrieb einer beschneiungsvorrichtung |
PCT/EP2002/014013 WO2003054460A1 (de) | 2001-12-11 | 2002-12-10 | Beschneiungsvorrichtung und verfahren zum betrieb einer beschneiungsvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1456588A1 true EP1456588A1 (de) | 2004-09-15 |
EP1456588B1 EP1456588B1 (de) | 2006-03-01 |
Family
ID=8179509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02792959A Expired - Lifetime EP1456588B1 (de) | 2001-12-11 | 2002-12-10 | Beschneiungsvorrichtung und verfahren zum betrieb einer beschneiungsvorrichtung |
Country Status (17)
Country | Link |
---|---|
US (1) | US7546960B2 (de) |
EP (1) | EP1456588B1 (de) |
JP (1) | JP4486360B2 (de) |
KR (1) | KR20040068230A (de) |
CN (1) | CN1276232C (de) |
AT (1) | ATE319060T1 (de) |
AU (1) | AU2002358664B2 (de) |
CA (1) | CA2468209C (de) |
DE (1) | DE50205970D1 (de) |
ES (1) | ES2259729T3 (de) |
NO (1) | NO335464B1 (de) |
NZ (1) | NZ532902A (de) |
RO (1) | RO122107B1 (de) |
RS (1) | RS50483B (de) |
RU (1) | RU2298138C2 (de) |
SI (1) | SI1456588T1 (de) |
WO (1) | WO2003054460A1 (de) |
Cited By (2)
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EP2249107A1 (de) * | 2009-05-05 | 2010-11-10 | Bächler Top Track AG | Beschneiungssystem und Verfahren zum Erzeugen von künstlichem Schnee |
WO2019243208A1 (de) | 2018-06-21 | 2019-12-26 | Nivis Gmbh - Srl | Beschneiungssystem, gebläserohr und beschneiungsverfahren |
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EP1908526A1 (de) * | 2006-10-04 | 2008-04-09 | Siemens S.A.S. | Düse für eine Zwei-Phasenmischung |
EP2071258A1 (de) | 2007-12-14 | 2009-06-17 | Bächler Top Track AG | Nukleatordüse, Verwendung einer Nukleatordüse, Schneekanone, Schneilanze und Verfahren zum Erzeugen von Eiskeimen und von künstlichem Schnee |
US8393553B2 (en) * | 2007-12-31 | 2013-03-12 | Ric Enterprises | Floating ice sheet based renewable thermal energy harvesting system |
WO2010036372A1 (en) | 2008-09-25 | 2010-04-01 | Sno Tek P/L | Flat jet fluid nozzles with adjustable droplet size including fixed or variable spray angle |
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 |
WO2012115718A2 (en) * | 2011-02-26 | 2012-08-30 | Naeem Ahmad | Snow/ ice making & preserving methods |
BR112013024092A2 (pt) * | 2011-03-21 | 2016-12-06 | Ada Technologies Inc | sistema de entrega de névoa e atomização de água |
WO2014036344A2 (en) | 2012-08-29 | 2014-03-06 | Snow Logic, Inc. | Single and multi-step snowmaking guns |
US9631855B2 (en) | 2011-03-22 | 2017-04-25 | Mitchell Joe Dodson | Modular dual vector fluid spray nozzles |
CA2907404C (en) | 2013-03-15 | 2020-10-06 | Snow Logic, Inc. | Nucleator for generating ice crystals for seeding water droplets in snow-making systems |
CN106912198B (zh) * | 2014-06-26 | 2019-10-25 | 天冰控股公司 | 流体射流喷射设备 |
SI24517A (sl) * | 2014-12-09 | 2015-04-30 | Robert Krajnc | Naprava za izdelavo umetnega snega |
KR101671478B1 (ko) * | 2015-06-17 | 2016-11-01 | 동부대우전자 주식회사 | 설빙 생성이 가능한 냉장고 및 설빙 제조 방법 |
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CN109539651B (zh) * | 2018-12-06 | 2020-07-28 | 天津商业大学 | 一种基于引射器的造雪机 |
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DE4131857A1 (de) | 1991-09-25 | 1993-04-08 | Stella Maris Ag | Schneekanone |
JP3158656B2 (ja) | 1992-06-16 | 2001-04-23 | 株式会社デンソー | エジェクタ |
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DE4423124A1 (de) | 1994-07-01 | 1996-01-04 | Eberhard Gall | Schneekanone |
WO1997018421A1 (en) | 1995-11-13 | 1997-05-22 | Snow Economics, Inc. | Method and apparatus for making snow |
DE19627586A1 (de) | 1996-07-09 | 1998-07-23 | Heinz Fischer & Soehne Schneea | Vorrichtung zur Erzeugung von Schnee mit wechselbarer Sprüheinrichtung unter Berücksichtigung der Umweltschutzgesetze |
ATE257935T1 (de) | 1998-02-06 | 2004-01-15 | York Neige | Erzeuger für eispartikel, schneepartikel, oder wasser-luft düse integriert im wassersprühkopf |
NO982507L (no) * | 1998-06-02 | 1999-12-03 | Arne Widar Luros | Snökanon |
IT1310250B1 (it) | 1999-10-04 | 2002-02-11 | Gottfried Rottensteiner | Sistema di nucleazione ed ugello nucleatore per la produzione di neveartificiale |
-
2002
- 2002-12-10 AT AT02792959T patent/ATE319060T1/de active
- 2002-12-10 JP JP2003555130A patent/JP4486360B2/ja not_active Expired - Fee Related
- 2002-12-10 ES ES02792959T patent/ES2259729T3/es not_active Expired - Lifetime
- 2002-12-10 KR KR10-2004-7009128A patent/KR20040068230A/ko not_active Application Discontinuation
- 2002-12-10 SI SI200230326T patent/SI1456588T1/sl unknown
- 2002-12-10 RU RU2004115397/12A patent/RU2298138C2/ru active
- 2002-12-10 DE DE50205970T patent/DE50205970D1/de not_active Expired - Lifetime
- 2002-12-10 RO ROA200400531A patent/RO122107B1/ro unknown
- 2002-12-10 US US10/498,277 patent/US7546960B2/en not_active Expired - Lifetime
- 2002-12-10 EP EP02792959A patent/EP1456588B1/de not_active Expired - Lifetime
- 2002-12-10 NZ NZ532902A patent/NZ532902A/xx not_active IP Right Cessation
- 2002-12-10 AU AU2002358664A patent/AU2002358664B2/en not_active Ceased
- 2002-12-10 CA CA2468209A patent/CA2468209C/en not_active Expired - Lifetime
- 2002-12-10 CN CNB028246888A patent/CN1276232C/zh not_active Expired - Fee Related
- 2002-12-10 RS YUP-482/04A patent/RS50483B/sr unknown
- 2002-12-10 WO PCT/EP2002/014013 patent/WO2003054460A1/de active IP Right Grant
-
2004
- 2004-07-09 NO NO20042937A patent/NO335464B1/no not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO03054460A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2249107A1 (de) * | 2009-05-05 | 2010-11-10 | Bächler Top Track AG | Beschneiungssystem und Verfahren zum Erzeugen von künstlichem Schnee |
WO2010128036A1 (de) * | 2009-05-05 | 2010-11-11 | Baechler Top Track Ag | Beschneiungssystem und verfahren zum erzeugen von künstlichem schnee |
WO2019243208A1 (de) | 2018-06-21 | 2019-12-26 | Nivis Gmbh - Srl | Beschneiungssystem, gebläserohr und beschneiungsverfahren |
Also Published As
Publication number | Publication date |
---|---|
ATE319060T1 (de) | 2006-03-15 |
EP1456588B1 (de) | 2006-03-01 |
AU2002358664B2 (en) | 2007-11-08 |
WO2003054460A1 (de) | 2003-07-03 |
NO335464B1 (no) | 2014-12-15 |
ES2259729T3 (es) | 2006-10-16 |
KR20040068230A (ko) | 2004-07-30 |
RS50483B (sr) | 2010-03-02 |
JP2005513400A (ja) | 2005-05-12 |
RU2004115397A (ru) | 2005-11-10 |
CN1602404A (zh) | 2005-03-30 |
CA2468209C (en) | 2012-03-27 |
RU2298138C2 (ru) | 2007-04-27 |
JP4486360B2 (ja) | 2010-06-23 |
NO20042937L (no) | 2004-07-09 |
DE50205970D1 (de) | 2006-04-27 |
RO122107B1 (ro) | 2008-12-30 |
YU48204A (sh) | 2005-09-19 |
US7546960B2 (en) | 2009-06-16 |
AU2002358664A1 (en) | 2003-07-09 |
CA2468209A1 (en) | 2003-07-03 |
SI1456588T1 (sl) | 2006-08-31 |
US20050006493A1 (en) | 2005-01-13 |
NZ532902A (en) | 2006-03-31 |
CN1276232C (zh) | 2006-09-20 |
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