| 摘要 |
A sprayer, particularly for use in agricultural crop-spraying, has a rotary atomizer comprising a rotary frusto-conical part, a slotted cylindrical liquid distribution member fixed centrally in the rotary part, and a liquid distributor of frusto-conical form but inverted relative to the rotary part. The distributor is fixed to the slotted liquid distribution member, surrounding and substantially enclosing it. The rotary part is arranged to rotate in bearings in a bearing housing in a fixed part of the sprayer and a stationary liquid feed tube supplies liquid to the member. The interior surface of the distributor is smooth and the interior surface of the rotary part is grooved. In use, the rotary part is caused to rotate by the rotation of a turbine and liquid supplied to the member is ejected by centrifugal force through the slots onto the smooth interior surface of the distributor at or near the smaller diameter portion thereof. The liquid then flows over the smooth surface and leaves a peripheral edge of the distributor to be distributed into the grooves in the surface of the rotary part. The grooves form reservoirs for the liquid to ensure even distribution of liquid around the rotary part and even spray distribution with uniformity of droplet size. |
