Patent ID: 6042091
Filing Date: 2000-03-28
Classification: B60G,B62K,F16F

Abstract:
A telescopic system for an adjustable hydropneumatic shock absorber, said telescopic system comprising:an inner sliding tube having a first plug assembly attached at one end of said inner sliding tube and a first elastic means positioned within the internal cavity of said inner sliding tube;an outer sliding tube having a closed end comprising attachment means for fastening to a wheel axis and an open end for telescopically mounting said inner sliding tube; andan adjustment means comprising:at least one valve means;a barrel which is closed at a first end by a second plug assembly and fastened at a second end to said closed end of said outer sliding tube;a piston positioned within said barrel creating an upper and a lower chamber, and comprising a first valve means for allowing the flow of fluid in a compression phase and a second valve means for allowing the flow of said fluid in expansion and compression phases, both of which control the passage of said fluid between said upper chamber and said lower chamber; anda support tube connected to said first plug assembly and to said piston wherein said support tube axially traverses said second plug assembly;wherein said telescopic system has at least one internal chamber arranged such that the liquid contained therein flows through at least one of said valve means;wherein said second valve means is adjustable by means of an adjustment screw positioned axially within said support tube and which protrudes with lateral seal from said first plug assembly.