The invention relates to a nozzle (2) for a jet aircraft engine. At least one slit (24) is formed in a nozzle wall surface (20) of the nozzle (2), and the slit (24) extends towards a nozzle outlet (23) of the nozzle (2) and ends at a nozzle rear edge (25) of the nozzle (2); and the width of the slit (24) monotonically increases in the flow direction (21, 22) of the airflow inside and outside the nozzle. The exhaust noise of the nozzle can be reduced, and meanwhile obvious adverse effects on the performance such as thrust of a jet engine are avoided. The invention further relates to a jet engine and a jet aircraft provided with the jet pipe.
本发明涉及一种用于喷气式飞机发动机的喷管(2)。喷管(2)的喷管壁面(20)形成有至少一条狭缝(24),狭缝(24)朝向喷管(2)的喷管出口(23)延伸并终止于喷管(2)的喷管后缘(25)。狭缝(24)的宽度沿喷管内外的气流流动方向(21、22)单调增加。上述喷管能够在降低其排气噪声的同时,不对喷气发动机的推力等性能造成明显的不利影响。本发明还涉及配备上述喷管的喷气发动机和喷气式飞机。
Nozzle, jet engine provided with nozzle and jet aircraft provided with nozzle
喷管、配备该喷管的喷气发动机和喷气式飞机
2021-03-16
Patent
Electronic Resource
Chinese
NTRS | 1980
|NTIS | 1979
|AIRCRAFT PROVIDED WITH AN ENGINE AND AN EXHAUST DUCT AROUND AN EXHAUST NOZZLE OF THE ENGINE
European Patent Office | 2024
|NTIS | 1979
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