Fluid sprinkling – spraying – and diffusing – Electrostatic type – With impeller
Patent
1981-03-18
1983-08-16
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Electrostatic type
With impeller
239703, B05B 504
Patent
active
043986722
ABSTRACT:
An electrostatic crop spraying apparatus is arranged so that spray is ejected from the nozzle directly towards the crop, either vertically downwards or at an angle intermediate between the horizontal and the vertical. With respect to the vertical, the spray liquid is fed to the upper surface of a rotatable disc from which it is centrifugally distributed on to the inner surface of a rotatable hollow cone coaxial with the disc. The truncated apex of the cone is uppermost and the liquid is atomized on ejection from the lower circumferential edge of the cone. Charging of the spray is produced at the surface of the disc or of the cone by means of an electrode which maintains an ionized air path to the surface over a distance of a few mm. The current flow for an electrode potential in the range 15 to 30kV is a few .mu.A. A pump may be used to supply liquid to the nozzle in a pulsed flow.
REFERENCES:
patent: 2989241 (1961-06-01), Badger
patent: 3010428 (1961-11-01), Sedlacsik
patent: 3086712 (1963-04-01), Frazier
patent: 3221992 (1965-12-01), Sedlacsik, Jr. et al.
patent: 4148932 (1979-04-01), Tada et al.
A. J. Arnold and B. J. Pye, Spray Application with Charged Rotary Atomisers, British Crop Protection Council, 7 30, 1981, pp. 109-117., Monograph 24, May 1980.
Arnold Arthur J.
Pye Barry J.
Kashnikow Andres
National Research Development Corporation
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