FIELD: electricity.
SUBSTANCE: invention relates to the electrical machine. The invention suggests an electrical machine (100) comprising a stator (107) and a rotor (101), at that the rotor (101) has a hollow shaft (102), herewith by means of the hollow shaft (102) an enclosed hollow space (103) is formed, at that the enclosed hollow space (103) is intended for the placement of a cooling agent; at that in the enclosed hollow space (103) a three-dimensional transporting (pumping) structure (200) is provided for the transportation of the cooling agent, which is designed to ensure the transportation of the cooling agent due to the rotation of the three-dimensional transporting structure (200). At that the transportation of the cooling agent in the first aggregative state and the second aggregative state is made in different directions. The three-dimensional structure may be manufactured by the additive application of the material.
EFFECT: improved cooling of the electrical machine.
20 cl, 7 dwg
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