| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vehicle air conditioner that effectively utilizes temperature distribution where the temperature of cooling water on one side is high and that on the other side is low, for the air passing through a heat exchanger for heating. <P>SOLUTION: This air conditioner includes the heat exchanger 2 for heating stored in an air conditioning case 51. The heat exchanger 2 for heating includes: a first heater core 10 for exchanging heat between engine cooling water and blowing air; and a second heater core 20 for exchanging heat between cooling water having a higher temperature than that in the engine cooling water flowing in the first heater core 10 with a small flow rate and blowing air heated in the first heater core 10. When the cooling water flows from an upper side to a lower side in the second heater core 20, the wind speed distribution of blowing air passing through the heat exchanger 2 shows high wind speed on the upper side and low wind speed on the lower side. The blowing air having passed a region on a lower side in the heat exchanger 2 is blown off from a foot blowoff port, while blowing air having passed a region on an upper side in the heat exchanger 2 is blown off from a blowoff port other than the foot blowoff port. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
