Patent · US Active

Rail brake damper

US11028896B2 · kind B2 · utility

0Cited by

15References

15Claims

0Family size

Assignee

Stabilus GmbH · DE

Inventors

Ulrich Probst · Aachen, DE
Lars Löhken · Bonn, DE
Raphael Piroth · Koblenz, DE
Markus Müller · Männedorf, CH

Key dates

Filing date	Jul 12, 2017
Grant date	Jun 8, 2021
Priority date	—
Expiry date	May 29, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F9/5126
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.