Device for reducing air humidity in a passenger compartment

摘要

The invention relates to a device for reducing the air humidity in a passenger compartment of a motor vehicle, in particular of a vehicle with internal combustion engine. A heating system is connected to the passenger compartment on the one hand via a discharge duct and on the other hand via a feed duct, an absorbent such as zeolite, silica gel or the like being arranged in the flow path between the discharge duct and feed duct. So that it is possible, over a long period, to prevent the windows of the passenger compartment becoming misted up on the inside using only a small amount of heating power, there is provision for the absorbent to be arranged in a desiccant duct which is connected to the air guide ducts parallel to a duct section of the said air guide ducts via an air flow control element which branches off part of the air stream, it being possible to replace the absorbent located in the flow path of the desiccant duct with regenerated absorbent by means of a replacement device. To be used for drying spaces.