| 摘要 |
The invention relates to a device (30) for mixing fresh air (2) and heating air (4) which comprises a fresh air inlet (32, 42), a heating air supply body (33, 43) for supplying the heating air (4) into the device (30, 40), and a mixed air outlet (36, 46) for delivering mixed fresh air and heating air (6) from the device (30, 40), wherein the heating air supply body (33, 43) comprises a first portion (35, 45) and a second portion (37, 47) which constitute a flow resistance to the fresh air (2), and wherein the second portion (37, 47) is formed as a closed hollow body with a plurality of heating air supply openings (38, 48) and is connected to the first portion (35, 45) at its downstream end, viewed in the flow direction of the heating air. The invention is characterised in that the first portion (35, 45) of the heating air supply body (33, 43) is of streamlined formation. The invention also relates to the use of a device of this kind in a ventilation system installed on board of an aircraft.
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