| 摘要 |
PROBLEM TO BE SOLVED: To prevent a windshield from fogging and enable to heat the inside of a cabin in a short time especially in a cold district. SOLUTION: A blower unit and a heat exchange unit 20 are separately disposed, and connected with a connection duct and a return bypass duct 3. An evaporator 22 and a heater core 23 are disposed in order toward the downstream side (upper part) from the upstream side (lower part) of blowing air in the heat exchange unit 20. The evaporator 22 is horizontally disposed, makes the outside air be cold wind by heat exchanging, and sends the wind toward the heater core 23. An air mix chamber 25 is disposed at the downstream side of the heater core 23, and branches a first passage 26 sending the air heated with the heater core 23 into the cabin, and a second passage 27 sending the air to the return bypass duct 3. An opening/closing door 28 is disposed in the second passage 27 to open the heater core 23 in the case of fully opening state or fully closing state. COPYRIGHT: (C)2004,JPO&NCIPI
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