| 摘要 |
<p>Air filter system having a blower (26) which sucks external air via an intake shaft (24) into a closed space (14,16) and a pre-cleaner (28,29) which has an outlet (38) via which pre-cleaned air is directed into the space. At the same time, the blower (26) increases the pressure above that of the external air and is connected upstream of the pre-cleaner (28,29) with respect to the direction of airflow, which pre-cleaner has a further outlet (36) which is open to the atmosphere outside the closed space (14,16). <IMAGE></p> |
