DUAL-FLOW TURBOJET ENGINE Russian patent published in 2013 - IPC F02K3/08

Abstract RU 2488710 C1

FIELD: engines and pumps.

SUBSTANCE: proposed engine comprises air-to-air heat exchanger arranged in outer flow channel, mixer and nozzle arranged at outlet. Sectional heat exchanger is arranged in gas generator cowl recess and inclined opposite airflow at angle α=(10-30)° to radial surface. Mixer is fitted asymmetrically relative to engine horizontal axis and offset to outer flow channel top part. Inlet of exhaust nozzle features rectangular cross section. Nozzle bottom wall is elongated as compared with top wall and has outlet convex-concave surface. Relationship between bottom wall elongated part and nozzle throat height makes 1-5.

EFFECT: higher engine efficiency, decreased noise.

5 dwg

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RU 2 488 710 C1

Authors

Pozharinskij Aleksandr Adol'Fovich

Kuznetsov Valerij Alekseevich

Dates

2013-07-27—Published

2012-04-18—Filed