| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioning unit and a miniaturized expansion valve whereby a front side is aggressively cooled and cooling-down time can be reduced when the temperature in a cabin is high. SOLUTION: This air conditioning unit for vehicle includes a liquid receiver 104, a front side evaporator 108 and a rear side evaporator 107 arranged in parallel, and a front side pressure reducing means 112 arranged between the liquid receiver and the front side evaporator and a rear side pressure reducing means 111 arranged between the liquid receiver and the rear side evaporator. An opening adjusting part 115 is provided in the air conditioning unit so that the opening of the front side pressure reducing means 112 is increased with the usage of the difference between an inner pressure of the front side pressure reducing means 112 and an inner pressure of the rear side pressure reducing means 111 when the temperature in the cabin is particularly high. COPYRIGHT: (C)2004,JPO&NCIPI
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