Traktionssystem mit einem Elektromotor und einem Externen Flüssigkeits-Luft-Wärmetauscher zur Kühlung des Rotors

Details

Veröffentlichungs-Nr.

EP4790880

Anmeldetag

6. Februar 2025

Veröffentlichung

12. August 2026

Rechtsraum

EP

Abstract

A traction system for a railway vehicle, comprising: - an electric motor (14) comprising a housing (20) including a peripheral part (40) in thermal contact with the stator, the motor defining two chambers (36, 38), the rotor defining a plurality of air passages (58) between the two chambers, the peripheral part defining a first liquid circuit (48) receiving a first flow of cooling liquid (32) intended to be heated by the stator, - a heat exchanger (22) outside of the housing, with an air inlet (64) in fluid communication with one of the two chambers, an air outlet (66) in fluid communication with the other one, and a second liquid circuit (68) receiving a second flow of cooling liquid (34), the air passages, the two chambers and the heat exchanger defining an air loop (78) for cooling the rotor, the heat exchanger performing a heat exchange between the air loop and the second flow of cooling liquid, - a fan (24) for circulating air in the air loop.

Anmelder

Firma

ALSTOM Holdings

Land

🇫🇷 Frankreich