US Patent 10953933 Active wheel spoiler

A wheel spoiler apparatus encompassing a flow impingement body, a displacement drive system, and a displacement guidance system, the flow impingement body being displaceable between a retracted inactive position and an extended active position, the displacement guidance system comprising a vehicle connection region in which it is connectable to a vehicle body, and comprising a flow impingement body connection region in which it is connected to the flow impingement body, the displacement guidance system encompasses two four-joint linkages coupled to one another via a common pivot joint.