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US 7,243,606 B2Granted
System for the secondary suspension of a superstructure of a rail vehicle having an active spring element
AssigneeKnorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
InventorsWinfried Hommen, Henry Kirsch, Eduard Nies, Martin Waldstein, Reinhard Loebner
Life of this patent
Estimating the term…
Abstract
A secondary suspension system for a rail vehicle includes a superstructure, a bogie arranged below the superstructure, a hydropneumatic spring unit located between the superstructure and the bogie, and at least one emergency spring cylinder.
Claims22
A secondary suspension system for a rail vehicle comprising:
- a superstructure;
- a bogie arranged below the superstructure;
- a hydropneumatic spring unit located between the superstructure and the bogie and providing in a normal operation at least one raised traveling level for the superstructure and a lowered platform level for the superstructure lower than the at least one raised traveling level;
- and
- at least one emergency spring cylinder, wherein when the system fails, the at least one emergency spring cylinder moves into an emergency operation and provides an emergency spring level situated between the at least one raised traveling level and the lowered platform level.
2 more elements
Dependencies are inferred from the claim text.