US 12,103,490 B2
Self-regulating damper unit
Lars Löhken, Linz am Rhein (DE); Raphael Piroth, Koblenz (DE); Markus Müller, Koblenz (DE); Ulrich Probst, Hillscheid (DE); and Marcus Weber, Neuwied (DE)
Assigned to Stabilus GmbH, Koblenz (DE)
Appl. No. 17/999,597
Filed by Stabilus GmbH, Koblenz (DE)
PCT Filed May 21, 2021, PCT No. PCT/EP2021/063693
§ 371(c)(1), (2) Date Nov. 22, 2022,
PCT Pub. No. WO2021/239630, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 10 2020 113 961.6 (DE), filed on May 25, 2020.
Prior Publication US 2023/0219519 A1, Jul. 13, 2023
Int. Cl. B60R 22/28 (2006.01)
CPC B60R 22/28 (2013.01) [B60R 2022/282 (2013.01); B60R 2022/288 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A self-regulating damper unit, comprising:
a cylinder filled with a fluid;
a piston dividing an interior of the cylinder into a first working chamber and a second working chamber, wherein the piston is displaceably disposed in the cylinder;
a piston rod connected to the piston and emerging from the cylinder at one or more ends of the cylinder;
at least one through-hole configured to place the first working chamber in fluid communication with the second working chamber;
a shiftable weight configured to modify a passage cross-section of the at least one through-hole available for the passage of fluid due to a relative movement with respect to the at least one through-hole, wherein the shiftable weight is movably mounted relative to the at least one through-hole such that retardation of the moving piston or the moving piston rod causes enlargement of the passage cross-section of the at least one through-hole;
an elastic element connected to the shiftable weight, wherein the elastic element is configured to push the shiftable weight into a rest position; and
a stop, wherein the elastic element connected to the shiftable weight pushes the shiftable weight against the stop.