ES243257U - A shock absorber of telescopic hydraulic shocks. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A telescopic hydraulic shock absorber, which comprises two concentric cylinders, one external and one internal, between which an intermediate space is delimited and in which a piston that has a shank protruding from the shock absorber slides from the inner cylinder. By one of the ends thereof which is the upper one in the position of use of the shock absorber, passing through it a head common to the two cylinders, said head being like a bushing with a hole which, followed in the axial direction of inside out of the shock absorber, it has a part of a smaller diameter through which the piston rod slides and a part of a larger diameter that acts as a well collecting the hydraulic fluid that comes from the cavity of the inner cylinder dripping between the stem and the part of the orifice of smaller diameter, said collecting well being delimited towards the interior of the shock absorber by an this is formed by a radial direction of transition between the two said parts of the hole and towards the exterior of the shock absorber by a joint having a friction lip attached to the sleeve rubbing on the stem, and said manifold being in communication with the latter. Intermediate space by a radial inclined evacuation duct that is in the sleeve and that ends in the intermediate space so that the hydraulic fluid passes from the collective well to the intermediate space, characterized in that the evacuation duct (52) has its entrance in the well collector (34) separated from the bottom (36) of said manhole, thereby ensuring when the damper is in use, that there is always a layer of liquid at the bottom (36) of the well (34). (Machine-translation by Google Translate, not legally binding)