Coanda effect bearing cooler

An apparatus for air cooling a module of a system that includes a rotating shaft extending through and beyond an end face of a housing of the module, the end face being substantially perpendicular to the rotating shaft and a side of the housing being substantially parallel to the rotating shaft, the system comprising:

• a Coanda panel mounted adjacent to the end face of the housing, the Coanda panel having a central opening through which the shaft extends,
• an exterior Coanda surface of the Coanda panel having a central region that is radially perpendicular to the shaft and a periphery that curves smoothly from radial to axial, so that a rim of the Coanda surface is directed axially and is substantially aligned with the side of the housing;
• a fan assembly including a fan blade and a fan cover;
• the fan blade is mounted to the shaft proximal and exterior to the Coanda surface and is located between the fan cover and the Coanda surface, both of the fan blade and the fan cover are smaller in diameter than the side of the housing and are configured to direct a flow of air parallel and adjacent to the Coanda surface, so that after it has flowed beyond the fan cover, the flow of air is attached by the Coanda effect to the Coanda surface, and is thereby redirected by the periphery of the Coanda surface, without impacting any ductwork, to the housing.