Patent ID: 6092592
Filing Date: 2000-07-25
Classification: B60H

Abstract:
An air conditioner for a vehicle having a passenger compartment, said air conditioning comprising:an air conditioning case for forming an air passage, said air conditioning case having a first opening portion for blowing air toward a lower portion of the passenger compartment and a second opening portion for blowing air toward an inner surface of a windshield;a cooling heat exchanger for cooling air passing through said air passage;a heating heat exchanger for heating air passing therethrough, said heating heat exchanger being disposed at a downstream air side of said cooling heat exchanger to form a bypass passage through which air having passed through said cooling heat exchanger bypasses said heating heat exchanger; anda temperature control unit which adjusts temperature of air blown into the passenger compartment by adjusting a ratio between an amount of air passing through said heating heat exchanger and an amount of air passing through said bypass passage, said temperature control unit including a first door for adjusting an opening degree of said bypass passage and a second door for adjusting an opening degree of a warm air passage through which air passes through said heating heat exchanger, wherein:said first door is a butterfly door having a rotation shaft at a center in a door width direction;said second door is a butterfly door having a rotation shaft at a center in a door width direction, said rotation shaft of said second door being disposed between said cooling heat exchanger and said heating heat exchanger; andsaid second door is disposed to fully open said warm air passage and to partition an air passage between said cooling heat exchanger and said heating heat exchanger into a first air passage through which outside air outside the passenger compartment flows and a second air passage through which inside air inside the passenger compartment flows, when a double-layer flow mode where inside air in said second air passage flows into said first opening portion and outside air in said first air passage flows into said second opening portion is set during an air outlet mode where both of said first opening portion and second opening portion are opened.