Patent ID: 6637348
Filing Date: 2003-10-28
Classification: B60G,B61F

Abstract:
A rail car (1) with a substructure (2) and a car body (3) arranged thereon having a main suspension system (4) on a fluid basis provided with at least one strut (5) supporting the car body (3) against the substructure (2), a pressure prevailing in said strut being correlated to the weight of the car body, and at least one emergency spring (6) supporting the car body (3) against the substructure (2) in case of a failure of the main suspension system (4), characterized in that the at least one emergency spring (6) is biased and maintained in normal operation position (FIG. 1, 2) by a force (F) generated by the pressure (p) prevailing in the strut (5), the emergency spring (6) expanding from said normal operation position into an emergency operation position (FIG. 3) in which it resiliently supports the car body (3) in case of a failure of the main suspension system (4).