| 摘要 |
<p>A control valve unit for air pressure adjustment and air delivery to a relay nozzle in an air jet loom is disclosed. The unit comprises an air inlet (4) and an internal conveying chamber (5) upstream of a delivery duct (7) to a relay nozzle, wherein between said conveying chamber (5) and said delivery duct (7) there are provided at least two calibrated conduits (5a, 5b, 105a, 105b) having different diameter and it further comprises at least shut on/off means suited to close said delivery duct (7) or said calibrated conduits (5a, 5b, 105a, 105b) and pressure adjusting means suited to alternatively close said calibrated conduits (5a, 5b, 105a, 105b).</p> |
