Vehicle wheel suspension with an adjustment system for the base point of a body suspension spring

摘要

The invention relates to a vehicle wheel suspension with a hydraulic adjustment system for the base point of a suspension spring provided between a wheel guide component and the vehicle body, with a piston pump driven by a relative movement of the vehicle body relative to a wheel-guiding component for conveying hydraulic medium through a check valve in a hydraulic chamber provided at the spring base, as well as with a pressurized compensation volume to provide hydraulic medium. The piston pump preferably has a pump cylinder and a pump piston which is displaceably guided opposite it, and a return channel connected to the hydraulic chamber opens into the pump cylinder in such a way that its opening is blocked or released depending on the position of the pump piston, with hydraulic medium from the hydraulic chamber through the pump cylinder being released through the released opening can flow into the compensation volume.