Noise attenuator

EP4735804A1Pending Publication Date: 2026-05-06FISH INNOVATION
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
FISH INNOVATION
Filing Date
2024-06-28
Publication Date
2026-05-06

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Abstract

The invention provides an attenuator for ducted air flow systems such as heating, ventilation and air conditioning systems arranged to direct the airflow into the attenuator by reducing the airflow path geometry into a central channel surrounded by absorbing material to damp resonant modes to reduce noise more uniformly across the desired frequency spectrum than resistive attenuators.
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Citation Information

Cited By

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  • Honeycomb-shaped hollow wideband ventilation sound insulation structure and design method thereof

    CN121600895B