An infrared stealth device for exhaust mixed flow cooling of internal combustion engine power station

Abstract

The invention relates to an infrared stealth device for exhaust mixed flow cooling in an internal combustion engine power station, which is characterized in that: the mixed flow chamber (101) is connected to the trumpet-shaped expansion tailpipe (103) through the acceleration throat pipe (102), and the muffler microporous exhaust tailpipe (2) Arranged at the center of the mixed-flow chamber (101), the high-pressure fan (3) is arranged at the inlet of the mixed-flow chamber (101), and the exhaust guide cone (104) is arranged at the outlet of the horn-shaped expansion tailpipe (103). A mixed-flow nozzle (105) passes through the side wall of the flared flared tailpipe (103) and is arranged around the inlet of the flared flared tailpipe (103), and the mixed-flow nozzle (105) faces toward the outlet of the flared flared tailpipe (103), The heat insulation layer (106) is arranged on the outlet of the mixed flow chamber (101), the acceleration throat (102), the trumpet-shaped expansion tailpipe (103) and the periphery of the mixed flow nozzle (105). The ends of the expansion tail pipe (103) are connected in one piece. The invention reduces the exhaust gas temperature and helps the power station to realize infrared stealth.

Description

technical field [0001] The invention belongs to the technical field of internal-combustion engine power stations, and in particular relates to an infrared stealth device for exhaust mixed-flow cooling in an internal-combustion engine power station. Background technique [0002] The exhaust temperature of internal combustion engine power plants is relatively high, and the temperature difference with the surrounding environment is relatively large. The characteristics are obvious under infrared detection conditions, which is not conducive to the stealth use of military internal combustion engine power plants. At present, the measures to reduce the infrared characteristics of internal combustion engine power plants are mainly to use water-cooled mufflers to reduce the exhaust temperature. By using water-cooled mufflers to reduce the exhaust temperature, the purpose of reducing infrared characteristics can be achieved. It is complicated, and the exhaust temperature cannot fully ...

AI Technical Summary

Problems solved by technology

[0002] The exhaust temperature of the internal combustion engine power station is high, and the temperature difference with the surrounding environment is large, and the characteristics are obvious under the infrared detection condition, which is not conducive to the stealth use of the military internal combustion engine power station

At present, the measures to reduce the infrared characteristics of internal combustion engine power plants are mainly to use water-cooled mufflers to reduce the exhaust temperature. By using water-cooled mufflers to reduce the exhaust temperature, the purpose of reducing infrared characteristics can be achieved. Complicated, and the exhaust temperature cannot fully achieve the effect of infrared stealth

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