Patent ID: 8371364
Filing Date: 2013-02-12
Classification: F28F

Abstract:
1. A regulator, comprising: a cooling body for an electric machine including a heat exchange surface to which a cooling air stream may be applied during operation of the electric machine, the cooling body having an inflow region in which the cooling air stream impinges upon the heat exchange surface, and an outflow region from where the cooling air stream leaves the heat exchange surface; wherein: the outflow region includes a plurality of rib-shaped projections and a plurality of pin-shaped or needle-shaped projections disposed in each said subsection of the outflow region located between the saddle-shaped elevation and the rib-shaped projections; each of the rib-shaped projections extends linearly along a plane of the heat exchange surface, away from the inflow region and towards an adjacent edge of the heat exchange surface, adjacent ones of the rib-shaped projections forming channels through which air deflected by one of the at least two deflecting surfaces is directed outward toward a respective adjacent edge; and adjacent ones of the pin-shaped or needle-shaped projections are offset to each other along directions of deflected air flow.