	US 12,459,583 B2
	Vehicle with bottom structure for reducing aerodynamic resistance
Jorden David Steenbeek, Utrecht (NL); Annemiek Jeanine Koers, Nijmegen (NL); and Federico García López, Eindhoven (NL)
Assigned to Lightyear IPCo B.V., Helmond (NL)
Appl. No. 18/009,562
Filed by Lightyear IPCo B.V., Helmond (NL)
PCT Filed Jun. 22, 2020, PCT No. PCT/EP2020/067317 § 371(c)(1), (2) Date Dec. 9, 2022, PCT Pub. No. WO2021/259445, PCT Pub. Date Dec. 30, 2021.
Prior Publication US 2023/0347994 A1, Nov. 2, 2023
Int. Cl. B62D 35/02 (2006.01); B62D 25/20 (2006.01); B62D 37/02 (2006.01)

CPC B62D 35/02 (2013.01) [B62D 25/2027 (2013.01); B62D 37/02 (2013.01)]

16 Claims

1. A vehicle comprising a bottom structure arranged at a bottom rear side of the vehicle, wherein the vehicle is an automobile for use on public roads, wherein the bottom structure:

comprises at least a vortex part which is inclined upwards when seen in a direction from a front end of the vehicle to a rear end of the vehicle,

is adapted to, when the vehicle is moving forward, generate a bottom air vortex below the vortex part,

and wherein a departure line is defined as a virtual line from a ground level towards a rear end of the vehicle and tangent to a rear wheel,

wherein:

the bottom structure is arranged above said departure line, and

the bottom air vortex exceeds said departure line.