| 摘要 |
PROBLEM TO BE SOLVED: To ventilate an engine compartment without using a ventilating fan even when a space in an outer cover is partitioned into the engine compartment and a heat exchanger chamber. SOLUTION: A discharge hose 34 is provided throughout the engine compartment 32 and the heat exchanger chamber 33 partitioned by a partition plate 31. One end 34A of this discharge hose 34 is opened in the engine compartment 32, and the other end 34B is connected to the hose connector 29A of a shroud 29. Consequently, when a cooling fan 28 is rotated and cooling air is generated, the other end 34B side of the discharge hose 34 connected to the shroud 29 is brought into a negative pressure. Then, air inside the engine compartment 32 is sucked out from the one end 34A side of the discharge hose 34 which is brought into an atmospheric pressure to the other end 34B side in the negative pressure, and can be discharged to the outside forcedly together with the cooling air. Thus, the engine compartment 32 can be ventilated by the rotation of the cooling fan 28 without using the ventilating fan. COPYRIGHT: (C)2008,JPO&INPIT
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