| 摘要 |
PURPOSE:To eliminate a blower fan and consequently contrive to make a heat exchanger smaller by a method wherein a main body comprising in alternately forming the first and second air passages with a plurality of heat-exchange walls is rotatably driven. CONSTITUTION:When a heat exchanger 16 is rotated in the direction as indicated with the arrow C by the running of a driving motor 6, the respective heat- exchange walls 20 are also rotated and act as the vanes of a centrifugal fan. Accordingly, the airs in the first and second air passages 22 and 23 are flowed out of first and second efflux ports 25 and 27 and the outdoor and indoor airs are flowed through first and second influx ports 24 and 26 into the first and second air passages 22 and 23. Consequently, the outdoor air is led through the suction port 8 of a mounting plate 7 into the exterior A side in an internal cylindrical wall 19 and past through the first air passages 22 and the through holes 12 of a frontal plate 9 and discharged from the discharge ports 15 of a decorative hood 13 into the interior B of a room as illustrated with the arrow D. At the same time, the air in the interior B of the room is discharged from the suction inlet 14 of the decorative hood 13 through the second air passages 23 to the exterior A as illustrated with the arrow E. |
