Cooling system for a highly utilized high-speed rotating electric synchronous machine

摘要

The system has key holders (21) possessing a defined spacing to a tooth head such that a coil-free groove space is formed on a stator winding. A tangential cooling passage (11) is formed between partial bundles of laminations such that inflow channels (8) and diverting channels (9) with equal axial cross-sections are distributed over the length of individual partial bundles of the laminations. The inflow channels and the diverting channels are centrally closed, where the cooling air is deflected and pressurized axially through tangential cooling channels (1) on a rotor surface.