| 摘要 |
<p>A rotary fluid dispenser, comprising: at least a fixed portion (3) provided with an arched window (5) developing from a first end (A) to a second end (B); at least a rotary portion (4) rotating about a predefined axis (x) bearing a plurality of fluid dispensing outlets (6); a treatment zone having an arched development, which is contained in the arched window (5) and extends from a fixed start point (C) to an end point (B) determined by the second end of the window (5); means (9) for varying the initial angular position of the arched window (5) with respect to the pre-defined axis (X) in such a way as to vary the extension of the treatment zone.</p> |
