| 摘要 |
PROBLEM TO BE SOLVED: To increase soundproof performance of an intake side without increasing the size of an intake chamber. SOLUTION: An intake chamber 16 is formed in an engine room 12 on the intake side of a heat exchanger 15, and a first intake port 17 is formed in the upper surface part of the intake chamber 16. An independent duct 18 is installed in the intake chamber 16 so as to surround airtight a core surface 15a of the heat exchanger 15 from the periphery, and the inside of the intake chamber 16 can be partitioned into two chambers 16a and 16b. A second intake port 23 is formed in the duct 18 to form the intake chamber 16 in a double duct structure so as to lead air sucked from the first intake port 17 to the core surface 15a of the heat exchanger through an intake passage bent in an L-shape. COPYRIGHT: (C)2006,JPO&NCIPI
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