| 摘要 |
A nozzle assembly in which the nozzle closes the end of angularly disposed air ducts, the nozzle having a central axial air passageway and a plurality of radially directed air passageways, the radially directed air passageways converging in arcuate paths toward the axis of the central passageway. Elements defining the central passageway are movable toward and away from each other to provide for a variable annular opening through which liquid, such as a pesticide, is introduced into the axial passageway and discharged with the air as a fog. In one embodiment of the invention, a motor controls the positioning of one element defining the central air passageway.
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