Car with an underbody provided with an aerodynamic diffuser

摘要

A car having a frame, which supports a pair of front wheels and a pair of rear wheels, a passenger compartment, at least one pair of doors, and an underbody which delimits the car on the lower side, faces the road surface, and has an aerodynamic diffuser, which is arranged in a rear position and is provided with a chute having a height with respect to the road surface that progressively increases when longitudinally moving from the front to the rear. The underbody can include a pair of aerodynamic channels, each of which extends longitudinally, leads to the aerodynamic diffuser, is open on the lower side towards the road surface, has a shape of an upside-down “U” in its transverse section and is open underneath towards the road surface and has, in its transverse section, an area that progressively increases when longitudinally moving from the front to the rear.

主权项

1. A car comprising:
a frame, which supports a pair of front wheels and a pair of rear wheels; a passenger compartment, which is arranged between the front wheels and the rear wheels; at least one pair of doors, which are hinged to the frame and allow access into the passenger compartment; and an underbody, which delimits a lowest portion of the passenger compartment and the frame and faces a road surface, the underbody comprising an aerodynamic diffuser, which is arranged in a rear position and comprises a chute presenting a height with respect to the road surface that progressively increases when longitudinally moving from the front to the rear; wherein the underbody comprises a pair of aerodynamic channels formed in the underbody and arranged perpendicular to the road surface, each of which extends longitudinally, leads to the aerodynamic diffuser, is open on the lower side towards the road surface, and includes a transverse section presenting an area that progressively increases when longitudinally moving from the front to the rear; wherein a portion of the underbody extends beneath each door and defines a segment of the corresponding aerodynamic channel which is arranged under a corresponding door.