Car air-conditioning unit has inlet, through which air is sucked from the external atmosphere by fan, acoustic damping barrier of foam or non-woven textile being fitted between this and car interior

摘要

The car air-conditioning unit has an inlet (3), through which air is sucked from the external atmosphere by a fan (4). An acoustic damping barrier (12.1, 12.2, 12.4) is fitted between this and the car interior (9). The barrier is made from permeable material, especially foam or non-woven textile.