The present invention relates to shrouded fan engine having an acoustic liner 10 for damping sound waves, comprising a base portion 14 on one side of the acoustic liner 10, wherein the base portion 14 is adapted to attach the acoustic liner 10 to an engine structure 18 of the engine, an impingement face 12 on another side of the acoustic liner 10, wherein the impingement face 12 is formed from a substantially liquid-tight material, at least one first channel 24 extending from the impingement face 12 in a direction towards the base portion 14, wherein a wall of the first channel 24 is formed from a substantially liquid-tight material, a damping portion 20 arranged between the impingement face 12 and the base portion 14, wherein the damping portion 20 is formed from an acoustic damping material, and at least one second channel 32 which connects the first channel 24 and the damping portion 20.
SHROUDED FAN ENGINE COMPRISING AN ACOUSTIC LINER
UMMANTELTER GEBLÄSEMOTOR MIT AKUSTIKAUSKLEIDUNG
MOTEUR À SOUFFLANTE CARÉNÉE COMPRENANT UN REVÊTEMENT ACOUSTIQUE
2023-03-08
Patent
Electronic Resource
English
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B64C AEROPLANES , Flugzeuge / F02C Gasturbinenanlagen , GAS-TURBINE PLANTS / F02K JET-PROPULSION PLANTS , Strahltriebwerke |
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