DRIVEN FAN FOR VEHICLE WHEEL BRAKE

1 . A fan for a wheel brake of a vehicle, the fan comprising:

a coupling portion for coupling the fan to the vehicle;

a blade assembly that is rotatable relative to said coupling portion to generate an air flow; and

a drive unit for rotating the blade assembly.

2 . The fan according to claim 1 , characterized in that said drive unit is adapted to drive said blade assembly at a rotational speed that is different from a rotational speed of at least one of:

wheel or a wheel hub of the vehicle, which are coupled to the wheel brake; and

a rotatable component of the wheel brake, in particular a brake disc.

3 . The fan according to claim 1 , characterized in that the drive unit is configured to drive the blade assembly for generating an air flow by means of which brake noises of the wheel brake can at least partially be dampened.

4 . The fan according to claim 1 , characterized in that the drive unit is selectively activatable for generating the rotation, the selective activation depending on at least one operating parameter of the vehicle.

5 . The fan according to claim 4 , characterized in that the operating parameter is one of the following:

an activation state of the wheel brake;

a movement parameter of the vehicle, in particular a vehicle speed or a vehicle acceleration.

6 . The fan according to claim 1 , characterized in that the wheel brake comprises a brake disc and a vehicle wheel coupled to the wheel brake comprises a rim, wherein the blade assembly is arrangeable between the brake disc and the rim.

7 . The fan according to claim 6 , characterized in that the coupling portion is couplable to an inner side of the rim or to the brake disc.

8 . The fan according to claim 1 , characterized in that the blade assembly is configured to change between a first configuration, in which the blade arrangement has a first radial extension, and a second configuration in which the blade assembly has a second radial extension, the first and second radial extensions being different.

9 . The fan according to claim 1 characterized in that the fan is adapted to collect brake dust emitted by the wheel brake.

10 . A vehicle wheel arrangement, comprising:

a vehicle wheel;

a wheel brake; and

a fan according to claim 1

11 . A method of operating a fan for a wheel brake of a vehicle, wherein the fan comprises a blade assembly for generating an air flow, the method comprising: generating a rotation of the blade assembly relative to at least one of:

a wheel or wheel hub of the vehicle coupled to the wheel brake; and

a rotatable component of the wheel brake, in particular a brake disc.