Air treatment device for use in heating, ventilation, or air conditioning system on vehicle roof of rail vehicle for passenger transportation, has returning air channel running towards part in longitudinal direction

摘要

The device (1) has a blow-out channel section (44) at which a blow-out channel (64) runs towards a part in a vehicle longitudinal direction. A returning air channel section (48) is provided for a returning air channel (66) that guides returning air in the direction and runs with vehicle longitudinal direction components in the device. The returning air channel runs towards the part in the vehicle longitudinal direction at the returning air channel section. The blow-out and returning air channel sections consist of foamed plastic i.e. expanded polypropylene. An independent claim is also included for a system for air treatment for a vehicle.