Air mixed type spray apparatus

Fluid sprinkling – spraying – and diffusing – Including supplemental gas shaping or shielding jet – Plural sets of gas jet orifices

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Details

239298, 239299, 2394245, 239DIG14, B05B 708

Patent

active

054354919

ABSTRACT:
A spray nozzle member jets out paint in a fan-shaped pattern. Air streams are jetted from a conically annular center air nozzle in such a way as to surround the fan-shaped pattern, whereby a conically atomized spray pattern is discharged from a deformed opening. Notches formed on the deformed opening cause the conical pattern to spread, and fan-shaped air streams produced by air from auxiliary air nozzles promote the spreading of the spray pattern to a greater extent. Oblique air streams are forwardly supplied from side air nozzles into that pattern, so that a fan-shaped spray pattern is again produced. Paint under a pressure of several kg/cm.sup.2 is discharged from a spray nozzle. An atomizing air stream, except the part thereof corresponding to the edge of the fan-shaped spray, converges on the front extremely close to the spray nozzle. The atomizing air stream is discharged under a pressure of less than 2 kg/cm.sup.2 such that a flat liquid film is surrounded and the atomizing air stream is caused to collide with a fan-shaped liquid flow. A spreading stream results from reaction caused by the collision of converging air streams from both sides, and causes a jet to be effectively atomized and formed into a conical pattern, thereby producing a conical spray. Air from side air nozzles and auxiliary side air nozzles causes the conical spray to be transformed to a fan-shaped spray having a wide angle while tailing is prevented.

REFERENCES:
patent: 1897173 (1933-02-01), Long et al.
patent: 1990823 (1935-02-01), Gustafsson
patent: 2051210 (1936-08-01), Gustaffson
patent: 2101175 (1937-02-01), Gustaffson
patent: 2138300 (1938-11-01), Gustaffson
patent: 2646313 (1953-07-01), Peeps
patent: 4349153 (1982-09-01), Johnson
patent: 4386739 (1983-06-01), Kwok
patent: 4854504 (1989-08-01), Hedger, Jr. et al.
patent: 5249746 (1993-10-01), Kaneko et al.

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