| 摘要 |
<p>The invention relates to a valve (7a, 7b) intended to adjust a hydraulic flow in a shock absorber (1), or to a shock absorber including such a valve (7a, 7b). The valve (7a, 7b) includes a valve core (11) having ports (lie, lid) extending through the core (11). The ports (lie, lid) are delimited by first and second leaf valves (16, 17) disposed on each side of the valve core (11). The first leaf valves (16) disposed on one side (lla) of the valve core are flexible and are elastically deformed when exposed to a certain damping force. The second leaf valve (17) is rigid, disposed on the other side (lib) of the valve core, and has a centred hollow (20a) having an inner diameter (20b) and guide surfaces in the form of radially protruding projections (21a) having an outer diameter (21b). The rigid second leaf valve (17) is intended to slide in a cylindrical volume (13a) against a substantially smooth surface on or in the valve housing (12). Between the projections, cavities (21c) having a specific area are created, through which damping medium can flow such that, when the rigid second leaf valve (17) lifts from the valve core (11), it lets through damping medium both through the centred hollow (20a) and through the cavities (21c). In the shock absorber (1) according to the invention, two valves (7a, 7b) realized according to the invention are placed in a first valve chamber (10) in a valve housing (12). The first valve chamber (10) communicates hydraulically, via ports (9a, 9b, 9c), with one or both of the damping chambers (3a, 3b) disposed in the shock absorber (1) and delimited by a main piston (2).</p> |
