Hydraulic Shock Absorber Equipped With A leading Stop Having An Adjustable Braking Rule
AssigneePsa Automobiles SA
InventorAntonin GROUL
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Abstract
A hydraulic shock absorber equipped with a leading stop, comprising a piston (4) sliding inside a body (2) for the purpose of shock absorption. The piston (4) moves a sleeve (10) which is disposed towards the front and provided with axially-distributed holes (18), and, at the shock absorber end-of-stroke, the sleeve fits around a stationary chamber (12) that gradually closes the holes (18), thereby reducing the cross-section through which fluid can flow into the sleeve (10). The chamber (12) comprises additional holes (40a, 40b) and said chamber (12) receives a moving gate (42) therein, which, depending on its position, either closes or opens the additional holes (40a, 40b).
Claims12
A hydraulic shock absorber equipped with a leading stop, including a piston sliding in a body to achieve a dampening, the piston displacing a sleeve disposed toward the front, the sleeve having axially disposed bores, the sleeve, at the end of stroke of the shock absorber, fitting around a fixed chamber that gradually closes the bores by reducing the passage cross-section of the fluid towards the interior of the sleeve, wherein the chamber comprises additional bores, and in that this chamber internally houses a movable gate that, depending on its position, closes or opens the additional bores.
Dependencies are inferred from the claim text.