| 摘要 |
<p>An apparatus (10) has a nozzle (12) including a nozzle orifice (14). There is a first chamber (22) adjacent and immediately downstream of the nozzle orifice (14). A first fluid supply (20) which supplies a first fluid is applied to the nozzle assembly wherein the first fluid passes through the orifice which exits downstream into the first chamber (22). A second fluid supply (28) supplies a second fluid, and is located downstream of said first fluid supply (20) in fluid communication with the first fluid supply (20). A flow limiter limits flow of the second fluid supply to the first chamber (22). The flow limiter may be a third fluid supply (32) applied to the first chamber, located intermediate said first and second fluid supplies. The flow limiter may alternatively be a throat formed (38) in a member, which a fluid jet applied by the first fluid supply passes through.</p> |
