FIELD: engines and pumps.
SUBSTANCE: turbojet engine convergent-divergent jet nozzle comprises controlled diverging flaps, driven diverging flaps inserted between the aforesaid controlled diverging flaps and appliances designed to supply cooled air to the driven diverging flaps. The driven diverging flaps feature a box spar structure with inner and outer radial walls. The driven diverging flaps comprise side holes designed to feed cooling air towards the inner surfaces of the said controlled diverging flaps for them to be cooled.
EFFECT: longer life of cooled controlled diverging flaps, reduced aircraft IR visibility.
11 cl, 7 dwg
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