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US 2025/0060127 A1Published application
Noise damper, in particular for an air conditioning system of a railway vehicle
AssigneeALSTOM Holdings
InventorLudovic NOE
Life of this patent
Estimating the term…
Abstract
The noise damper includes a casing delimiting an air passage, the casing having walls each includes an acoustic insulation layer. The noise damper includes: at least one baffle arranged in the air passage to separate the air passage in several channels, each channel extending substantially parallel to a longitudinal direction, and a helical deflector arranged in each channel, extending parallel to the longitudinal direction.
Claims10
A noise damper, comprising a casing delimiting an air passage, the casing having walls each comprising an acoustic insulation layer, wherein the noise damper comprises:
- at least one baffle arranged in the air passage to separate the air passage in several channels, each channel extending substantially parallel to a longitudinal direction;
- and
- a helical deflector arranged in each channel, extending parallel to the longitudinal direction.
Dependencies are inferred from the claim text.