Air inlet box for motor vehicle, has shutter with angular end position, in which shutter closes recycled air inlet, and another angular end position in which shutter closes external air inlet and covers external air flow circulating pipe

摘要

#CMT# #/CMT# The box (1) has a pipe (2) for circulating external air flow, and another pipe (3) for circulating recycled air. A shutter (4) is mounted at an input of the box and has an angular end position, in which the shutter closes a recycled air inlet of a section (Sr), and another angular end position, in which the shutter closes an external air inlet of a section (Se) and partially covers the pipe (3). #CMT#USE : #/CMT# Used for being placed upstream of a motor fan system e.g. blower, of a ventilation, heating and/or air conditioning apparatus in a cab interior of a motor vehicle (all claimed), where the blower propels air to be heated or cooled in the direction of the cab interior. #CMT#ADVANTAGE : #/CMT# The arrangement of the shutter permits to reduce the size of the external air flow circulating pipe passing in a lower cross piece of a bay of the vehicle by efficiently using the recycled airflow, thus reducing the size of the cross piece and improving the visibility across the windscreen. The box permits to provide air-conditioning in a constrained environment, and improves the air flow while reducing the noise of the motor fan system. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of an air conditioning apparatus equipped with an air inlet box. Se, Sr : Sections 1 : Air inlet box 2, 3 : Pipes 4 : Shutter 7 : Partition wall.