Patent ID: 6134909
Filing Date: 2000-10-24
Classification: B60H,F24F,F25D

Abstract:
An evaporator housing for an air conditioning unit mounted upon the roof of a vehicle cabin that includes:a base pan secured to a vehicle cabin roof, said base pan having a return air duct through which air passes vertically out of said cabin and a supply air duct through which conditioned air passes vertically into said cabin;an enclosure that is mounted over the return air and supply air ducts that includes front and rear walls and opposed side walls, all of which are mounted upon the base pan and a top wall that is conjoined to said other walls to provide an air tight enclosure for containing an evaporator section of an air condition system;said walls combining to form a blower chamber over the supply air duct and an evaporator chamber over the return air duct;said enclosure further including a nozzle that passes between said chambers, said nozzle being integral with the housing and converges from the evaporator coil chamber exit face toward the blower chamber, said nozzle converging from a rectangular-shaped entrance to a circular exit; andsaid front wall of the enclosure containing an arcuate shaped upper segment for directing return air toward said nozzle.