COMPACT, RELIABLE AND CHEAPER COOLING SYSTEM FOR TIGHT TRACTION CUBICLE, METHOD OF ACTUATION AND AND RELATED RAILWAY VEHICLE.

摘要

The present invention relates to a traction box (10) of a railway vehicle, comprising: electrical equipment (16, 17, 18); and a cooling device (20), comprising: a first and a second fluid circuit, respectively passing through a first (38,39) and a second (40) heat exchange zone with said electrical equipment; and a first (34) and a second (36) heat exchanger, respectively traversed by said first (54) and said second (60) fluid circuits and allowing a heat exchange between said fluid and a first air stream (32). ). The fluid circuits comprise a first common fluid flow conduit (70, 71, 54) passing through the first heat exchanger (34), then connected to a second (60) and a third (62) parallel duct, the second duct ( 60) belonging to the second fluid circuit and first passing through the second heat exchanger (36) and then the second heat exchange zone (40).