| 摘要 |
<p>A valved device (10) for dispensing multiple closely spaced streams of liquid from a plurality of dispensing orifices (13). The device (10) includes selectively actuatable valve needles (16) associated with each of the dispensing orifices (13) for controlling liquid flow from the orifices (13). A pair of oscillatable cam shafts, (20,21) each having multiple cam surfaces of different configurations, controls actuation of the valve needles (16).</p> |
