Patent ID: 6352208
Filing Date: 2002-03-05
Classification: B60H

Abstract:
An air conditioning apparatus for a vehicle having a passenger compartment, comprising:an air conditioning case for defining an air passage through which air flows; a heating heat exchanger for heating air, said heating heat exchanger being disposed in said air conditioning case to form a bypass passage through which air bypasses said heating heat exchanger; a hot water valve for adjusting a flow amount of hot water flowing into said heating heat exchanger; a bypass door for opening and closing said bypass passage; and an operation member for cooperating said hot water valve and said bypass door, said operation member being operable in an entire operation range between a lowest-temperature position where temperature of air blown into the passenger compartment becomes minimum and a highest-temperature position where the temperature of air blown into the passenger compartment becomes maximum, wherein: in a first area from the lowest-temperature position among the entire operation range of said operation member, the temperature of air to be blown into the passenger compartment is adjusted by a hot-water flow adjustment of said hot water valve while said bypass door maintains at a fully opened state where said bypass passage is fully opened; when the operation member operates from the first area to a side of the highest-temperature position, said bypass door reduces the opening degree of said bypass passage from said fully opened state so that the temperature of air to be blown into the passenger compartment is adjusted by combining the hot-water flow adjustment of said hot water valve and an air flow adjustment of said bypass door.