Patent ID: 8403735

Claim:
An automotive air conditioner, comprising: an air-conditioning case having air passageways including a cold air path through an evaporator, a warm air path through a heater core, and a plurality of discharge paths communicating with respective outlets; an adjustable air mix door for adjusting a distribution of cold air and warm air flowing into said discharge paths through a junction region of the cold air and the warm air by adjusting an amount of opening of said cold air path and said warm air path; and a wedge-shaped rotary door having a pair of side walls and a cross wall connecting distal ends of said side walls, said rotary door being rotatable about an axis connecting base ends of said side walls, said rotary door being rotatable between a withdrawal position and an advanced position, in which said cross wall impedes air flow from said junction region to an area downstream of said junction region; wherein said rotary door has a door space formed within and defined by said side walls and said cross wall of said rotary door, said air mix door and said rotary door being arranged and configured so that a portion of an opening-and-closing space of said air mix door overlaps with said door space of said rotary door when said rotary door is in the advanced position such that a portion of said air mix door is located within said door space when said rotary door is in the advanced position and said air mix door is open at least a minimal amount; wherein said rotary door is configured so that said door space forms a portion of said cold air path and a portion of said warm air path; and wherein a seal face distance of said rotary door from a door shaft of said rotary door to said cross wall at a front side of said rotary door is shorter than a seal face distance of said rotary door from said door shaft to said cross wall at a tip side of said rotary door, and a seal face width of said cross wall at said front side is shorter than a seal face width of said cross wall at said tip side.