Patent ID: 7441529

Claim:
A method of providing lubricating oil to a bearing surface of a connecting rod journal on a crankshaft, the connecting rod journal offset from an axis of rotation of the crankshaft wherein the connecting rod journal comprises an interior chamber at least partially defined by a base axially extending through the connecting rod journal wherein any open end of the bore is covered by a cap, the method comprising: immersing an open lower end of a conduit in a volume of oil contained within an engine crankcase, wherein an upper end of the conduit connects to the connecting rod journal and wherein a first channel is in fluid communication with the upper end of the conduit and the interior chamber; positioning the conduit such that the open lower end is oriented tangentially to a radius extending from the crankshaft axis of rotation to an upper end of the conduit, wherein the conduit is bent such that the lower open end has an opening facing towards a direction of rotation of the crankshaft; and, rotating the crankshaft around the axis of rotation such that the lower end of the conduit moves through the volume of oil in a circular path centered on the axis of rotation; wherein movement of the conduit through the volume of oil forces oil to flow through the conduit and first channel to the interior chamber.