Automobile connecting rod

摘要

A light-weight bearing cap for attaching a connecting rod to a journal of a crankshaft pin has two longitudinally extending shoulders separated by an arcuate span conforming to the shape of the journal The shoulders are adapted to receive fasteners which connect mating surfaces of the connecting rod to those of the bearing cap. Mass is conserved by ensuring that the inner and outer arcuate surfaces are shaped as arcs of non-concentric circles such that the maximum thickness of the span occurs at the bisecting points of the respective arcs and the minimum thickness of the span occurs in the region between the shoulders and the maximum thickness. The thickness where the machined surface on the shoulder is located is greater than in the region between the shoulder and the region of maximum thickness.