The present invention relates to a noise reduction structure for an air circulation duct including an upper duct which forms an upper wall and both side walls of a duct and in which an opening is formed to face downward, a lower duct detachably mounted on the opening of the upper duct and forming a lower wall of a flow path, a plurality of central splitters mounted apart from each other in a longitudinal direction of the flow path in which air flows, a front splitter disposed in front of the central splitters, and a rear splitter disposed on an upper surface of the lower duct to be disposed behind the central splitters.
Noise Reduction Structure For Air Circulation Duct
17.07.2025
Patent
Elektronische Ressource
Englisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |
Advanced inlet duct noise reduction concepts
NTRS | 1976
|Noise reduction through circulation control
AIAA | 2001
|Noise Reduction Through Circulation Control
AIAA | 2006
|