| 摘要 |
PROBLEM TO BE SOLVED: To prevent the reduction of blow-out air quantity when introducing primary air into an aspirator. SOLUTION: This aspirator 39 is provided in the vicinity of an air mix chamber 32 of an air conditioning unit case 20. When air-conditioned air flows into a venturi tube 40 and is blown from a diffuser 40b, internal air is sucked into an outlet of a secondary air suction nozzle 41 via a hose 43 communicated with a storing case 37 of an internal air temperature sensor 36 by a venturi effect. Air discharged from the diffuser 40b is returned to a suction port 26a of an air blower 25 without leakage by a connection pipe 44. As a result the reduction of air quantity blown into a cabin from blow-off ports 33a to 33c can be prevented. The primary air is heat-exchanged air-conditioned air, and thereby cooling and heating performance in the air conditioning unit case 20 can be assisted by blowing the primary air by the air blower. COPYRIGHT: (C)2008,JPO&INPIT
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