| 摘要 |
<p>Warm air which has flowed down through a warm air merging conduit (21) merges at a merging portion (18a) with cold air which has flowed through a cold air conduit (16). Also, warm air which has flowed down through a warm air tunnel conduit (23) is diffused by a warm air diffusion conduit (24) in the arrangement direction (Z) on the downstream side of the merging portion (18a) in the warm air merging direction (Y) and guided to an air mix chamber (18). The warm air diffusion conduit (24) and the merging portion (18a) are separated by a partition wall (26), and as a result, the warm air is guided to the air mix chamber (18) without merging with the cold air at the merging portion (18a).</p> |
