CRANKSHAFT BEARING CAP WITH OPTIMIZED PILLARS

摘要

Crankshaft bearing cap (10) in the shape of a half-cylinder (13) of axis X coinciding with the axis of the crankshaft and comprising diametrically opposed attachment pillars (20), each column-shaped pillar comprises a substantially oval upper surface (18) incorporating a bearing surface (16) surrounding a borehole (15) through which a fixing screw can pass and a bearing surface for the screw head, said surface surrounding the borehole (15), the attachment pillar (20) comprising at least two lateral and vertical grooves over a portion of the height of the pillar, the grooves being situated outside a vertical bearing cylinder the base of which is equal to the bearing surface (16) and outside of a volume defined by the transverse plane passing through the axes of the attachment holes and extending symmetrically in the X-direction over a length e.