SOUND ABSORBING STRUCTURE Russian patent published in 2025 - IPC B32B3/12 

Abstract RU 2833039 C1

FIELD: sound-absorbing structures.

SUBSTANCE: result is achieved by sound-absorbing structure containing external panels and cellular filler with different configuration of cells located between them. At that, as external panels there used are facing sheet on one side of end surface of filler, and a permeable surface is on the other side.

EFFECT: higher efficiency of reducing noise generated by gas or air flow.

2 cl, 6 dwg

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RU 2 833 039 C1

Authors

Pisarev Pavel Viktorovich

Akhunzianova Karina Alekseevna

Dates

2025-01-14Published

2024-01-11Filed