A method and apparatus for cooling a transverse flow synchronous machine is provided which uses a coolant that is entrained by the rotor rotation during operation of the synchronous machine and is sprayed into the intermediate spaces between the plurality of stepped elements along the surface of the...http://www.google.de/patents/US7129602?utm_source=gb-gplus-sharePatent US7129602 - Method for cooling a transverse flow synchronous machine and transverse flow synchronous machine
