Patent ID: 7975806
Filing Date: 2011-07-12
Classification: F01M,F16C,Y10T

Abstract:
1. A lubrication system comprising: a crankpin having an outer surface; a connecting rod having an inner surface slidably disposed relative to the outer surface of the crankpin, the inner surface having a first radius of curvature; a bore extending through the connecting rod, and having an inner passageway and an outlet configured to dispense lubrication onto the outer surface of the crankpin; and wherein the outlet of the bore includes a pair of sidewalls and a pair of end walls, each of the pair of end walls including a curved surface having a continuous curvature extending from the inner passageway of the bore to the inner surface and having a second radius of curvature that is less than the first radius of curvature of the inner surface of the connecting rod, and wherein an entirety of the outlet of the bore is directly exposed to the crankpin.