Fluid sprinkling – spraying – and diffusing – Weather control
Patent
1980-02-01
1981-10-20
Reeves, Robert B.
Fluid sprinkling, spraying, and diffusing
Weather control
239474, 239488, 2395903, 2395905, F25C 304, B05B 710
Patent
active
042956080
ABSTRACT:
This invention relates to a snow-making nozzle used in the production of artificial snow and which is to be connected to a pressurized supply of water and a pressurized supply of air for the concurrent passage of air and water therethrough. The nozzle has an upstream conically convergent section and a downstream conically divergent section. At the common point of intersection of these two sections, which is normal to the nozzle axis, an annular throat is defined. A restrictor, being a body of revolution, is fixedly positioned in the divergent and convergent sections and includes a conically convergent downstream portion commencing proximate from the annular throat and within the divergent section of the nozzle. The design is conducive to uniform velocity profiles, uniform particle size of snow produced and reduced air-to-water ratios when operating at ambient temperatures approaching the freezing point of water than was previously obtainable in nozzles intended for two phase flow.
REFERENCES:
patent: 2694603 (1954-11-01), Griffin
patent: 2786742 (1957-03-01), McKinley et al.
patent: 3923247 (1975-12-01), White
Forman Michael J.
Reeves Robert B.
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