Fluid sprinkling – spraying – and diffusing – Rigid fluid confining distributor – Having interior filter or guide
Patent
1991-12-12
1993-12-14
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Rigid fluid confining distributor
Having interior filter or guide
239590, B05B 102
Patent
active
052694950
ABSTRACT:
For the optimum atomization of liquid materials, a high-pressure atomizing nozzle is proposed with a nozzle body (1) in which is formed a turbulence chamber (11) which is connected to an external space via a nozzle orifice (4) and which has supply ducts (8) for the fluid to be atomized, through which ducts the fluid mentioned can be supplied under pressure. The cross-sectional areas of the supply ducts (8) entering the turbulence chamber (11) are larger by a factor of between 2 and 10 than the cross-sectional area of the nozzle orifice (4). In this way, part of the nozzle upstream pressure available is used to generate high levels of turbulence in the fluid to be atomized. The turbulence generation is achieved by means of an abrupt expansion (Carnot diffuser) in the turbulence chamber located before the actual nozzle orifice. The resulting droplet spray exhibits small angles of spread and very small droplet sizes (in the case of the atomization of water, .ltoreq.20 microns at upstream pressures .gtoreq.150 bar).
REFERENCES:
patent: 2369357 (1945-02-01), Kunz
patent: 2681829 (1954-06-01), Wahlin
patent: 3974966 (1976-08-01), Watkins
patent: 4930701 (1990-06-01), Porter et al.
"Lueger-Lexicon der Energietechnik und Kraftmanshinen" 1965, DVA, Stuttgart, p. 600.
Patent Abstracts of Japan vol. 14, No. 57 (C-684) (4000) Feb. 2, 1990 & JP-A-01 284 351 (IKEUCHI) Nov. 15, 1989.
Asea Brown Boveri Ltd.
Kashnikow Andres
Morris Lesley D.
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