Patent ID: 9168811
Filing Date: 2015-10-27
Classification: B60H

Abstract:
1. A blower unit for a vehicle heating, venting, and air conditioning unit comprising: a case member defining at least one exterior air intake aperture, at least one interior air intake aperture and a lower opening in communication with the at least one exterior intake aperture and the at least one interior air intake aperture; a first door disposed between the lower opening and the at least one exterior air intake aperture and between the lower opening and the at least one interior air intake aperture; a second door disposed between the lower opening and the at least one exterior air intake aperture and between the lower opening and the at least one interior air intake aperture; and a sealing member fixedly attached to the case member at a position between the lower opening and the at least one exterior air intake aperture and between the lower opening and the at least one interior air intake aperture, the first and second doors movable with respect to the sealing member, the sealing member portioning the lower opening into a first portion and a second portion different than the first portion; wherein the first and second doors can move independent of each other; wherein the first and second doors are positionable, in a mixture position allow airflow into the blower unit through both the exterior and interior air intake apertures, wherein the first door, in the mixture position, is sealed against the sealing member such that the first door fully closes an air passage between the at least one exterior air intake aperture and only the first portion of the lower opening; and wherein a filter is disposed between the lower opening and the at least one exterior air intake aperture and between the lower opening and the at least one interior air intake aperture, the sealing member directly abuts the filter to define the first and second portions of the lower opening.