Rotary atomizer for coating workpieces with a fine layer of liqu

Details Rotary atomizer for coating workpieces with a fine layer of liqu Rotary atomizer for coating workpieces with a fine layer of liqu

1984-07-30

1985-06-04

Beck, Shrive P.

Coating processes

Spraying

118300, 118323, 239703, 239223, 239224, B05D 102

Patent

active

045214620

ABSTRACT:
A rotary atomizer for coating workpieces with a fine layer of liquid material, and a method of operating the said atomizer.
A rotary atomizer (10) for coating workpieces with a fine layer of liquid material fed at very low flow rates includes a bell-type rotatable atomizing device (12) for dispensing the liquid from an edge (17) in an atomized condition under the effect of centripetal forces. The liquid fed into a tube (21) having an outlet (20) within the bell (12) appears as discontinuous drops (40) at the outlet (20). Air is also fed into the bell (12) via a tub (25) having an outlet (26) disposed adjacent the liquid outlet (20) such that the air jet (41) breaks up the drops (40) and forms a spray (42) directed at the internal wall of the bell (12). The spray (42) coalesces into a continuous film of liquid as it travels on the internal wall of the bell (12) to the discharge edge (17).

REFERENCES:
patent: 3001890 (1961-09-01), Sedlacsik
patent: 3221992 (1965-12-01), Sedlacsik
patent: 4214708 (1980-07-01), Lacchia
patent: 4337895 (1982-07-01), Gallen

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