Electric machine, has stator comprising cooling circuit with liquid coolant, and rotor comprising thermal siphon with vaporizer and condenser, which is designed as hole and attached at cooling circuit for dissipation of heat from rotor

摘要

The machine (1) has a stator (2) comprising a cooling circuit (3) with liquid coolant i.e. water. A rotor (4) has a shaft thermal siphon with a vaporizer (5) and a condenser (7), which is designed as a hole. The condenser is attached at the cooling circuit for dissipation of heat from the rotor. The condenser is designed with cooling fins (8), which are connected with a shaft (6) of the rotor in a fixed manner. Liquid metal bearings have a permanent magnet and liquid metal. A dynamic gasket e.g. labyrinth seal, is provided between the condenser and a cabinet (9).