IP Library Granted Patent US 12686448
Granted Patent B2
US 12686448 · App. 18/588,043 · Granted Jul 21, 2026

Air guiding device of a motor vehicle body with a flexible air guiding element

Inventors: Bernd Herrmann (Ehningen, DE); Riccardo Bauer (Owen, DE); Stefan Rudersdorf (Santa Clara, CA)
Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
B62D35/007
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Quick Facts
Patent No.
US 12686448
App. No.
18/588,043
Granted
Jul 21, 2026
Kind
B2
Abstract

An air guiding device of a motor vehicle body having a flexible air guiding element, wherein the air guiding element includes a frame, in whose interior a flexible active element, is arranged. The flexible active element is configured so that its geometry can be changed under the action of a pulling force (F), wherein at least one pulling element is configured on the active element, on which the pulling force (F) can act with the aid of a kinematic system of the air guiding device.

Claims (14)

1 . An air guiding device for a motor vehicle body, said air guiding device comprising:

a flexible air guiding element having a moveable frame and a flexible active element extending across an interior of the frame, wherein a geometry of the flexible active element is configured to be changed under the action of a pulling force that is applied onto an underside of the flexible active element, and

at least one pulling element fixed to the flexible active element at a location within the interior of the frame, wherein applying the pulling force onto the pulling element changes a position of the frame and the geometry of the flexible active element.

2 . The air guiding device according to claim 1 , wherein the frame comprises four frame elements, which form the interior, wherein at least two of the frame elements are configured to be changeable.

3 . The air guiding device according to claim 2 , wherein the frame elements, which extend along a body longitudinal axis (X) of the motor vehicle body, are configured to be changeable.

4 . The air guiding device according to claim 1 , wherein the active element has a textile design, and wherein the active element remains extended across the interior of the frame in every position of the frame.

5 . The air guiding device according to claim 1 , wherein at least one support element extending along a body transverse axis (Y) is operatively connected to the active element to stabilize the active element.

6 . The air guiding device according to claim 1 , wherein the pulling element is a tab.

7 . The air guiding device according to claim 1 , further comprising a guide arm for raising and lowering the frame.

8 . The air guiding device according to claim 1 , wherein the active element is configured to cover a cavity located between the active element and an underbody of the air guiding element.

9 . The air guiding device according to claim 1 , wherein the active element comprises a first element edge extending along the body transverse axis (Y) and a second element edge, which is formed facing away from the first element edge, which also extends along the body transverse axis (Y), wherein one of the two element edges is fixedly connected to the frame and the other of the two element edges is fixedly received in a tensioning element formed independently of the frame.

10 . The air guiding device according to claim 9 , wherein the tensioning element is configured to be spring-loaded.

11 . A motor vehicle body comprising the air guiding device of claim 1 .

12 . A motor vehicle comprising the motor vehicle body of claim 11 .