Rolls-royce Deutschland Ltd & Co. Kg

Siemens Aktiengesellschaft

Peter Van Haßelt

Michael Frank

Heinz Schmidt

Jörn Grundmann

Werner Kaiser

Johannes Richter

Christian Weidermann

Various embodiments include a rotor for an electric machine comprising: an electric coil arrangement; and a winding carrier mechanically carrying the coil arrangement and at least partially enclosing the coil arrangement on a radially outer side of the coil arrangement. The rotor includes an inner cavity for circulating a fluid coolant such that the coil arrangement comes into contact with the liquid coolant on its radially inner side as the rotor rotates.

Rotor with a coil arrangement and a winding carrier

The disclosure relates to a system having an electric machine with a superconductive component cooled using a cryogenic liquid, and in particular to the full utilization of the refrigeration power available from vaporization of the cryogenic coolant. The system also has a fuel cell, in which an operating medium may be reacted to provide electrical energy. The coolant is fed in liquid form to the superconductive component to cool the component, utilizing the vaporization enthalpy of the coolant. The coolant is then fed in gaseous form to a further component of the machine to cool the component, utilizing the heating enthalpy of the coolant. The now heated coolant is fed to the fuel cell, which uses the coolant supplied to the fuel cell as an operating medium and reacts it.

System having an electric machine with a cryogenic component, and a method for operating the system

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Erlangen, Germany

Peter Van Haßelt