Hydraulic damper with a hydraulic compression stop assembly

A hydraulic damper for a vehicle, the hydraulic damper comprising:

• a main tube extending about and along an axis and having a first inner diameter and filed with working liquid;
• a first piston assembly disposed in said main tube and axially dividing said main tube into a rebound chamber and a primary compression chamber, and axially moveable in a compression stroke and a rebound stroke to generate a damping force;
• a hydraulic compression stop assembly disposed in said compression chamber, said hydraulic compression stop assembly including:
• a narrowed section disposed in said compression chamber of said main tube and extending between an open end and a closed end and having a second inner diameter being smaller than said first inner diameter of said main tube;
• a second piston assembly slideably disposed in said narrowed section and coupled with said first piston assembly for axially moving with said first piston assembly for generating an additional damping force during said compression stroke;
• said second piston assembly having a piston tube extending between an opened end and a shut end, with said shut end disposed opposite said closed end of said narrowed section;
• and
• a displaceable partition slideably disposed in said piston tube of said second piston assembly for providing an additional damping force during said compression stroke, said displaceable partition defining a first auxiliary compression chamber between said displaceable partition and said closed end of said narrowed section, and a second auxiliary compression chamber between said displaceable partition and said shut end of said piston tube,
• wherein a spring extends between said shut end of said second piston assembly and said displaceable partition to bias said displaceable partition toward said closed end of said narrowed section,
• wherein a sleeve is disposed in said first auxiliary compression chamber and coupled with said piston tube,
• wherein said displaceable partition is provided with a cylindrical projection disposed slidably within the sleeve and extending through the sleeve into the first auxiliary compression chamber to provide axial guidance for said displaceable partition.