TRACTION BOX OF A RAILWAY VEHICLE WITH A COOLING SYSTEM, ASSOCIATED APPLICATION METHOD AND RAILWAY VEHICLE

摘要

The present invention relates to a traction box (10) of a railway vehicle, comprising: pieces of electric equipment (16, 17, 18); and a cooling device (20), comprising: a first and second fluid circuits, respectively crossing a first (38, 39) and a second (40) heat exchange area with said pieces of electric equipment; and a first (34) and a second (36) of heat exchangers, respectively crossed by said first (54) and said second (60) fluid circuits and allowing heat exchange between said fluid and a first air flow (32). The fluid circuits comprise a first common conduit (70, 71, 54) for fluid circulation, crossing the first exchanger (34), and then connected to the second (60) and to a third (62) parallel conduits, the second conduit (60) belonging to the second fluid circuit and first crossing the second exchanger (36) and then the second heat exchange area (40).