MUMBAI, India, Aug. 12 -- Intellectual Property India has published a patent application (202644001853 A) filed by Alstom Holdings on January 07, 2026, for A Traction System Comprising An Electric Motor And An Outside Liquid-Air Heat Exchanger For Cooling The Rotor.
Inventor includes Boualem Benali.
The application for the patent was published on August 07, 2026, under issue no. 32/2026.
Abstract: TITLE :A traction system comprising an electric motor and an outside liquid-air heat exchanger for cooling the rotor A traction system for a railway vehicle, comprising: - an electric motor comprising a housing including a peripheral part in thermal contact with the stator, the motor defining two chambers, the rotor defining a plurality of air passages between the two chambers, the peripheral part defining a first liquid circuit receiving a first flow of cooling liquid intended to be heated by the stator, - a heat exchanger outside of the housing, with an air inlet in fluid communication with one of the two chambers, an air outlet in fluid communication with the other one, and a second liquid circuit receiving a second flow of cooling liquid, the air passages, the two chambers and the heat exchanger defining an air loop for cooling the rotor, the heat exchanger performing a heat exchange between the air loop and the second flow of cooling liquid, - a fan for circulating air in the air loop. Figure: 2
Disclaimer: Curated by HT Syndication.
