Patent ID: 6230795
Filing Date: 2001-05-15
Classification: B60H

Abstract:
An air conditioning apparatus for a vehicle having a passenger compartment, said air conditioning apparatus comprising:an air conditioning case for forming an air passage, said air conditioning case having an opening portion for blowing air into the passenger compartment;a cooling heat exchanger, disposed in said air conditioning case, for cooling air passing therethrough;a heating heat exchanger for heating air from said cooling heat exchanger, said heating heat exchanger being disposed in said air conditioning case to form a bypass passage through which air having passed through said cooling heat exchanger bypasses said heating heat exchanger and to form a warm air passage through which air having passed through said heating heat exchanger flows;an air mixing door for adjusting a ratio between an amount of air from said bypass passage and an amount of air from said warm air passage, in such a manner that air blown into the passenger compartment from said opening portion has a predetermined temperature;an air duct connected to said opening portion of said air conditioning case, said air duct having an air outlet from which air is blown toward a side of the passenger compartment;an interrupting unit for interrupting air blown from said air outlet;interrupting signal generating means for generating an interrupting signal when air blown from said air outlet is interrupted by said interrupting unit; andcontrol means for controlling operation of said air mixing door in such a manner that a communication between said bypass passage and said warm air passage is closed by said air mixing door when the interrupting signal is generated from said interrupting signal generating means.