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US 2020/0325956 A1Published application
Rail brake damper
AssigneeStabilus GmbH
InventorsUlrich Probst, Lars Löhken, Raphael Piroth, Markus Müller
Life of this patent
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Abstract
A rail brake damper includes a cylinder-piston arrangement. A damping device assigned to the piston comprises at least one damping valve having at least one piston channel, which passes through the piston, connecting the two operating chambers of the cylinder, and a closure element assigned to the piston channel. The closure element is spring pre-loaded with the effect of closing the piston channel and is acted on by the hydraulic pressure which prevails in the operating chamber facing away from the piston rod with the effect of opening the damping valve.
Claims19
A rail brake damper comprising
- a cylinder-piston arrangement having
- a cylinder,
- a piston that is guided in the cylinder in an axially movable manner and divides the inner chamber of the cylinder into two working chambers,
- a piston rod connected to the piston and guided out of the cylinder at one end thereof in a sealed manner,
- an ejector arrangement, which acts on the piston in such a manner as to slide the piston rod out of the cylinder, and
- a damping device associated with the piston,
- wherein the damping device comprises at least one damping valve having at least one piston channel which passes through the piston, thereby connecting the two working chambers, and at least one closure element associated with the at least one piston channel,
- the at least one closure element being spring-biased in such a manner as to close the at least one piston channel, and hydraulic pressure active in the working chamber remote from the piston rod acting on said at least one closure element in such a manner as to open the damping valve.
5 more elements
Dependencies are inferred from the claim text.