Patent ID: 6561326
Filing Date: 2003-05-13
Classification: F16F

Abstract:
An arrangement for attenuating impact amplitudes against a wheel of a vehicle, comprising: at least one piston traveling in a housing and dividing said housing into two attenuating spaces; a piston rod attached to said piston; a hydraulically parallel component operating in conjunction with said piston and handling smaller amplitudes; said component being a diaphragm or a displaceable rigid disk dividing a closed space and communicating hydraulically with one of said attenuating spaces or with the other one of said attenuating spaces, said one attenuating space being an upper space and said other attenuating space being a lower space; said disk having at least one face bordered by an annular groove holding a resilient ring extending above said face; said disk being displaceable in said closed space having a half portion connected with said attenuating spaces, so that attenuation of vibrations with small amplitudes is weak and said attenuation is actuated only when travels of said piston inside said housing are extensive.