| 摘要 |
PROBLEM TO BE SOLVED: To provide a shutter structure of a vehicle heat exchanger which operates switching means by a simple constitution, and can reduce draft resistance.SOLUTION: In a shutter structure of a vehicle heat exchanger which is arranged at a vehicle front side or a vehicle rear side of the vehicle heat exchanger 200 having a plurality of laminated tubes 201a in which heat exchange mediums pass, and adjusts a draft amount of the vehicle heat exchanger 200, there are arranged switching means 402, 502a which can switch a first state that the switching means are located between the adjacent tubes 201a and a second state that the switching means are located so as to be overlapped with the tubes 201a. When an air velocity of an airflow progressing toward the vehicle heat exchanger 200 from the vehicle front side is lower than a prescribed value, the switching means 402, 502a are brought into the first state, and when the air velocity of the airflow exceeds the prescribed value, the switching means are transited to the second state from the first state by the airflow.SELECTED DRAWING: Figure 8 |
