Ventilation device and vehicle with a ventilation device

A ventilation device, comprising:

• a fan wheel;
• a holder having a substantially circular continuous opening formed therein for receiving said fan wheel rotating about a center axis of said opening, said holder having a peripheral face and said opening being bordered by said peripheral face running substantially cylinder-symmetrically about said center axis;
• and
• said peripheral face having two separate circumferential portions diametrically opposite one another with a radius being at least partly enlarged in comparison with a cylinder-symmetrical form in remaining circumferential portions of said peripheral face;
• said peripheral face being concavely curved in said two separate circumferential portions diametrically opposite one another in a longitudinal section, said circumferential portions of said peripheral face which are of concave design in a longitudinal section forming part of a spherical face having a spherical center point within said opening.

A vehicle, comprising:

• a ventilation device having a fan wheel and a holder for said fan wheel, said holder having a substantially circular continuous opening formed therein with said fan wheel rotating about a center axis of said continuous opening, said holder having a peripheral face bordering said continuous opening, said peripheral face running substantially cylinder-symmetrically about said center axis, and formed between a circumferential contour of said fan wheel and said peripheral face is a gap;
• said peripheral face having two separate circumferential portions diametrically opposite one another and remaining circumferential portions between said separate circumferential portions;
• a circumferential projection projecting from said peripheral face radially inwards and being axially offset from said fan wheel, said circumferential projection being spaced from said fan wheel at a greater axial distance in said separate circumferential portions than in said remaining circumferential portions;
• and
• an installation position of said ventilation device in the vehicle being such that said center axis is substantially oriented in a straightforward driving direction of the vehicle, said separate circumferential portions being disposed in an uppermost region of said peripheral face and in a lowermost region of said peripheral face.