| 摘要 |
At least one vent hole is provided on an aerodynamically constructed covering part for the underside of a motor vehicle, particularly a passenger car, through which vent hole a partial flow of the cold fresh air flowing through between the covering part and the roadway during the driving operation is guided to a space which is situated above and accommodates assemblies and/or chassis parts, such as the engine compartment and/or transmission space or the like, which partial flow cools the assemblies and/or chassis parts situated there. In order to achieve an efficient feeding and carrying-away of the air flow flowing through the engine compartment and the transmission space while simultaneously utilizing the aerodynamic potential of a smooth-surface underbody, it is provided that at least one suction device is provided on the covering part for carrying away the heated air situated in the space disposed above in the direction of the roadway, the at least one suction device being arranged at a distance from the vent hole.
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