Patent ID: 6135250
Filing Date: 2000-10-24
Classification: F16F

Abstract:
A hydropneumatic vibration damper of variable damping force comprising:a piston rod guide;a bottom valve;a cylinder having an interior and a bottom said cylinder extending at least between said piston rod guide and said bottom valve and having a piston and a valve therein, said piston defining a first work space located on the piston rod side of the piston and a second working space, said cylinder interior space being filled with damping fluid;a container surrounding said cylinder at a radial distance therefrom forming a compensating space therebetween, said compensating space being filled with a damping fluid and gas and being in fluid communication with said second working space via said bottom valve;an electromagnetically actuable valve device, said device controlling a hydraulic connection between the interior of the cylinder and the compensating space, said electromagnetically actuable valve being arranged on a side of the bottom valve which is opposite the cylinder.