| 摘要 |
The air-outflow channel (24) is subdivided in a chamber-like manner by means of at least one partition wall (46, 47) extending essentially in the longitudinal direction of the air-outflow channel (24), such large chamber volumes being limited that an equalisation of the air quantity per unit time passing through the individual air-outlet orifices is provided. The air-outflow channel (24) can be provided, on two longitudinal walls (30, 31) located opposite one another, with air-outlet orifices or perforations arranged essentially in a uniform distribution. It can be surrounded by a protective housing (23) which has air-passage orifices (29, 28) and air-guide means (54, 55). <IMAGE>
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