| 摘要 |
Ventilation device for the simultaneous ventilating and exhausting an enclosed room having the capacity for the recovery of heat from the exhaust media current. The exhaust media current is given a longer flow path than the ventilation media current; particularly the flow path of the exhaust media current at the exit side of the heat exchanger has a flow deflection which includes an arc measure of more than 90.degree. degrees and preferably of about 150.degree.. Further, the flow paths of both the exhaust and the ventilation media current extend from their inlets to at least the heat exchanger in an ascending direction. |
