LUFTVERTEILER, INSBESONDERE FUER KRAFTFAHRZEUG- HEIZUNGS-, BELUEFTUNGS- UND KLIMAANLAGEN

摘要

Disclosed is an improved diffuser assembly for use in ventilating, heating and air conditioning installations where it is necessary to conduct the air flow of a blower through air discharge fittings to air outlet nozzles such as those in the passenger compartment of an automobile. The air diffuser according to the present invention is of simple configuration, inexpensive to produce and requires only a small amount of space for installation. The diffuser has a cylindrical housing, with an intake fitting positioned on one frontal side and a plurality of air discharge orifices located successively with respect to each other along a circumferential surface of the cylindrical housing. Air discharge fittings are adapted to be attached to the discharge orifices. Coaxially positioned in the housing a rotating drum is provided. The drum is provided on its jacketing surface with openings whereby, depending on the angular position of the drum with respect to the housing, the orifices of the housing may be selectively opened or closed by the openings. Within the drum a coaxial radial blower wheel is provided.