| 摘要 |
<p>An exhaust nozzle (24 or 28) operative to suppress the InfraRed (IR) signature radiated from the high-temperature exhaust of an engine (12) which exhaust nozzle (24 or 28) includes an inlet conduit adapted for receiving the high-temperature engine exhaust and a plurality of adjoined lobes (30) integrally formed in combination with the inlet conduit. The adjoined lobes (30) are characterized by a first and second plurality of penetrating lobes (60, 62 or 70, 72) which are adapted for admixing low-temperature gaseous fluid with the high-temperature exhaust and which are axially staggered with respect to each other. In the preferred embodiment, at least one of said plurality of penetrating lobes (60 or 62, 70 or 72) extends into a core region (CR) of the exhaust nozzle (24 or 28) to effect thorough mixing of the engine exhaust with the low temperature gaseous fluid. Various embodiments of such exhaust nozzle (24 or 28) are described in the context of a multi-stage mixer/ejector (20).</p> |
