| 主权项 |
1. A car comprising:
a car body; and a rear spoiler, which is integral with the car body, is arranged in a rear position and projects from the outline of the car body to deflect the air flow upwards so that the air flow skims over an upper surface of said rear spoiler; wherein the rear spoiler comprises at least one through aerodynamic duct, which starts in an inlet opening arranged in correspondence with an initial end of the rear spoiler and ends in an outlet opening arranged in correspondence with a final end of the rear spoiler, so that a part of the air flow hitting the rear spoiler flows above the rear spoiler skimming over the upper surface of said rear spoiler and the remaining part of the air flow hitting the rear spoiler flows through the rear spoiler crossing the aerodynamic duct; wherein: the aerodynamic duct has, on the inside, a narrowing, which is arranged in a central position along the aerodynamic duct and locally reduces the area of the cross section; and the area of the cross section of the aerodynamic duct upstream of the narrowing is equal to the area of the cross section of the aerodynamic duct downstream of the narrowing. |
