| 摘要 |
<p>The accessory is mounted on an end of an outlet duct (4) of an abrupt air discharge device (1). The accessory presents itself under a form of a tube mounted coaxially to axis of the duct. Air of the tube section decreases in a direction of escaping air and then increases, respectively to form a convergent section (A) and a divergent section (B). An air outlet is above an air inlet. An Independent claim is also included for an abrupt air discharge device equipped with an accessory.</p> |
