Reduced radiated-noise rail

Details Reduced radiated-noise rail Reduced radiated-noise rail

E - Fixed Constructions

01

B

E01B 5/02 (2006.01)

Patent

CA 2215962

The invention relates to a profiled rail (1), especially for a railway track, with a reduced total radiated noise level when in use. In order to reduce the noise radiation level, at least one web side surface (31) is substantially concavely rounded without any salient points in the lower region (31') between the transition edge (32) on the side of the rail patten (3) and the centre of gravity axis (X) in the rail cross-section and/or the height (H) of the pattern is increased by comparison with a normally profiled rail having a corresponding total rail height A.

L'invention concerne un rail de roulement profilé (1), notamment un rail de chemin de fer, qui présente, lors du passage de trains, un faible niveau de radiation sonore total. En vue de réduire la radiation acoustique, il est prévu de concevoir, au moins une face latérale de l'âme (31) sensiblement concave sans point de brisure, dans la zone inférieure (31') entre le bord de transition (32) du patin de rail (3) et l'axe du centre de gravité (X) de la section du rail et/ou d'augmenter la hauteur (H) du patin du rail comparativement à un rail profilé normal d'une hauteur totale A correspondante.

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