Patent ID: 6161821
Filing Date: 2000-12-19
Classification: B60G,F16F

Abstract:
A hydropneumatic spring strut for suspending the chassis of a trailer or a motor vehicle including an automobile, a truck and a bus, the hydropneumatic spring strut comprising:a gas spring defining a longitudinal axis and including a gas spring cover, a gas spring piston having a piston plate and an annular resilient member connected between said gas spring cover and said gas spring piston;said gas spring cover, said gas spring piston and said annular resilient member conjointly defining a first space for a gas;a shock absorber defining a longitudinal axis and being arranged coaxially in said gas spring;said shock absorber including a damper cylinder defining a volume, a damper piston mounted for reciprocating movement in said damper cylinder and a piston rod connected to said damper piston;an impact disc mounted in said damper cylinder so as to partition said volume into second and third spaces;said impact disc and said piston plate having respective pass-through openings formed therein for accommodating said piston rod; and,said piston rod and said piston plate conjointly defining a first connecting gap between said first space and said second space and said piston rod and said impact disc conjointly defining a second connecting gap between said second and third spaces.