Described is a device (1) for emitting a jet of fluid comprising a tubular member (2) having at least one air inlet opening (4) and one air outlet opening (5). Moreover, the device (1) comprises blowing means (6), located inside the tubular member (2) for sucking air from the inlet opening (4) and generating a flow of air coming out of the outlet opening (5); the blowing means (6) comprising a drive unit (7) and an air movement member (8) connected to the drive unit (7). The device (1) also comprises an apparatus (11) having at least one fluid delivery nozzle (12) and an air compression structure (13) connected to the delivery nozzle (12). More specifically, the drive unit (7) is connected to the air compression structure (13) to set it in action and they are both located inside a container (16).

A hydrant for selectively valving and delivering fluid under pressure to a plurality of different fluid outlets. The hydrant housing has at least one fluid inlet and multiple fluid outlets. A valve operating shaft is mounted for axial rotation in the hydrant housing and positioned transversely to a valve seat having a first set of valve ports therethrough annularly arranged on a first circumference about the shaft, and a second set of valve ports are provided through the valve seat and annularly arranged on a concentric second circumference of different diameter than the first circumference about the shaft. A valve actuator disk secured for rotation with the operating shaft slidably engages the valve seat in a rotary fashion to selectively valve the valve ports open and closed in selected combinations with rotation of the shaft to preselected positions of rotation.

A snow-making apparatus has a housing, an evaporator roller rotatable in the housing, and a rotary distributor connected to the roller for circulating a coolant through the evaporator roller and thereby cooling the roller. Nozzles on the housing project a mixture of water and air at the evaporator roller such that the liquid freezes into a layer of ice crystals on the roller. A doctor blade smooths the layer of ice crystal on the rotating roller, and a scraper blade scrapes the ice crystals off the roller.

An oscillating snow making tower including an oscillating fluid drive secured to the tower for horizontally oscillating the tower on its ground support pole back and forth between preset limits, and wherein, this oscillating fluid drive is powered by the water or air supplied under pressure to the snow making tower, thereby eliminating the need for access to electricity in order to oscillate the tower.

Described is a device (1) for emitting a jet of fluid comprising a tubular member (2) having at least one air inlet opening (4) and one air outlet opening (5). Moreover, the device (1) comprises blowing means (6), located inside the tubular member (2) for sucking air from the inlet opening (4) and generating a flow of air coming out of the outlet opening (5); the blowing means (6) comprising a drive unit (7) and an air movement member (8) connected to the drive unit (7). The device (1) also comprises an apparatus (11) having at least one fluid delivery nozzle (12) and an air compression structure (13) connected to the delivery nozzle (12). More specifically, the drive unit (7) is connected to the air compression structure (13) to set it in action and they are both located inside a container (16).

A device for producing artificial snow includes: elements (100) for producing a central jet (101) consisted by a first fluid chosen among air or water; elements (110) for producing a peripheral jet (111) consisted by a second fluid chosen among water or air and different from the first fluid; and nucleation elements (120) for the production of at least one nucleation jet (121). The elements for producing the central jet and the elements for producing the peripheral jet are arranged in such a manner that the opposite contours (103, 114) of their respective jets each define a generating line, which opposite generating lines extend parallel or at least approximately parallel to each other; moreover, the nucleation elements (120) are distributed over the external periphery of the elements (110) for producing the peripheral jet (111).

A nucleator nozzle (20) for producing ice nuclei is designed as convergent-divergent nozzle. The nozzle channel (25) has a section (27) that is widening. The ratio of the cross-sectional area of the outlet opening (23) to the cross-sectional area of the nozzle channel (25) in the region of the nucleus diameter (26) is at least approximately 4:1. A snow lance (1) having at least one nucleator nozzle (20) and having at least one water nozzle (30; 30) is designed such that water droplets (32) produced by the water nozzle (30; 30) pass through a droplet path (31; 31) of at least 20 cm until they reach ice nuclei (28) from the nucleator nozzle (20) in a germination zone E.

A snow making apparatus includes: a snow making container having an inner space for snow making; a supply unit configured to supply fine snow or fine water droplets to the inner space; a catching unit configured to catch the fine snow or the fine snow formed of the water droplets; and a drive unit configured to move the catching unit toward a place where the fine snow is flying in the inner space. The catching unit is configured to be shaken thereby making snow caught by the catching unit fall off from the catching unit.

A snow making apparatus includes a cylindrical body and a snow making nozzle that jets water droplets into the cylindrical body. The cylindrical body has a proximal end that is opened to a temperature environment where snow can be produced from water droplets jetted from the snow making nozzle. A distal end of the cylindrical body is connected to a pipe member communicating with a test chamber. The snow making nozzle is formed of a two-fluid nozzle. The pipe member communicates with a snowfall hood disposed in the test chamber and having a supply opening that allows snow to fall. The cylindrical body is disposed in an oblique posture so as to be lowered from a proximal end toward a distal end of the cylindrical body.

An artificial snow-making facility includes: a snow-making device; a fluidic water pipe for supplying water to the snow-making device; potentially, a fluidic air pipe for supplying air to the snow-making device; a controller for managing the operation of the snow-making device; and a power supply for supplying electricity to the controller. The power supply includes a power generator arranged on one of the fluidic pipes, which power generator includes a turbine adapted to be driven by the fluid of the fluidic pipe.