Patent ID: 7378766

Claim:
A rotating electrical machine, comprising: a housing comprising a front bearing, a rear bearing, and passages, and inside the housing a stator carrying at least one stator winding, a shaft, a rotor mounted rotatably inside the stator with the aid of the shaft supported on said front and rear bearings, a rectifier device provided with electronic elements for rectifying the current generated in the winding of the stator, at least one fan, means for cooling by forced flow of a coolant fluid through the passages of the housing with the aid of the fan, and means for cooling and evacuating to the outside the heat produced in the machine, wherein said cooling and evacuating means comprises: the coolant fluid, and at least one heat pipe comprising: a closed enclosure, in which circulates the coolant fluid capable of absorbing heat from the environment, through a first change of state, and releasing heat back to the environment, through another change of state, at least one evaporation zone for absorption of the heat through evaporation of the coolant fluid, and at least one condenser zone for restoring the absorbed heat through condensation of the coolant fluid, wherein the heat pipe belongs to the rectifier device, wherein the passages consist of axial openings of the rear bearing for passage of the coolant fluid, and wherein the condenser section of the heat pipe is located in the flow of the coolant fluid above at least one of said axial openings.