| 摘要 |
<p>An apparatus for generating a mist and/or foam for example for use in fire suppression. The apparatus has a plurality of first fluid supply passages (60b) having inlets in fluid communication with a first fluid supply and first fluid outlets. At least one second fluid supply passage (66) has an inlet in fluid communication with a second fluid supply and a second fluid outlet. The plurality of first supply passages (60b) are arranged circumferentially around the second fluid supply passage (66). A nozzle (72) is in fluid communication with the first and second fluid outlets, the nozzle (72) having a nozzle inlet (74), a nozzle outlet (78), and a nozzle throat (76) intermediate the nozzle inlet (74) and nozzle outlet (78), the nozzle throat (76) having a cross sectional area which is less than that of both the nozzle inlet (74) and nozzle outlet (78). The second fluid outlet includes a porous member (100) through which the second fluid must flow.</p> |
