Rotary electric machine having a turbine having increased negative pressure
AssigneeMoteurs Leroy-Somer
InventorsVit Zahradsky, Alexis Dutau
Life of this patent
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Abstract
A rotary electric machine that includes a rotor and a stator and is cooled by a stream of air generated by at least one fan. The fan is driven by a main shaft of the machine or by its own drive system. The fan includes main blades (33) for generating a stream of cooling air and, upstream of said main blades, tins which at least partially cover coil heads of the stator in the axial direction.
Claims12
An open rotary electric machine that comprises a rotor and a stator and is cooled by a stream of air generated by at least one fan, in which the at least one fan is driven by a main shaft of the machine or the at least one fan comprises a drive system and is driven by the drive system, and the at least one fan comprises main blades for generating a stream of cooling air and comprises, upstream of the main blades, fins which at least partially and axially cover coil heads of the stator in the axial direction, the fins adjoining an air inlet of a main part of the fan which comprises the main blades, the fins generating a stream of air that is directed in the radial direction toward the windings of the stator, the fins having a radial dimension that decreases with increasing distance from the rest of the fan.
Dependencies are inferred from the claim text.