发明名称 |
PASSIVE EXHAUST SUPPRESSOR AND METHOD |
摘要 |
A passive exhaust system is described that provides effective infrared signature suppression without affecting radar cross-section while maintaining stable function in crosswinds. A passive exhaust system may include an array of ducts with each duct having a primary and secondary nozzle. Central ducts draw in ambient cooling air to create a thick cooling film along exterior surfaces and cause plume dilution, stabilize the plume flow in a crosswind, and prevent heating of visible surfaces. Visible surfaces may incorporate radar absorbing materials and may be inclined at an angle or fabricated with a diffuse surface to prevent specular reflection. Visible surfaces may be constructed from or covered with low infrared emissivity materials. A variable passive flow controller ensures a sufficient velocity exhaust flow. |
申请公布号 |
CA2538899(C) |
申请公布日期 |
2010.11.30 |
申请号 |
CA20042538899 |
申请日期 |
2004.09.02 |
申请人 |
NORTHROP GRUMMAN SHIP SYSTEMS, INC. |
发明人 |
MEANS, JAMES L. |
分类号 |
F01N3/02;B63G13/02;B63J2/12;F01D25/30;F02C7/14;F02K1/82;F41H3/00 |
主分类号 |
F01N3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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