| 摘要 |
A sprinkler for discharging liquid onto an area with a predetermined geometrically shaped perimeter whilst maintaining a substantially constant liquids precipitation over said area. The sprinkler comprises a housing fitted with a flow chamber accommodating a motor for rotating a sprinkler head mounted on the housing, the housing comprising a first nozzle and a second nozzle, in flow communication with the outlet end of the flow chamber. The first nozzle fitted for discharging liquid at a substantially short range. The sprinkler further comprises a dynamic liquid deflector associated with the second nozzle, and biased by an array of biasing elements, each adapted to dynamically bias the liquid deflector to a predetermined angle, thereby determine a deflection angle thereof.
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