Analyses of High‐Speed Crankshaft Loads Available to Purchase

In the design of an articulated connecting‐rod system for a radial engine, certain conflicting desiderata have to be fulfilled, which of necessity dictate recourse to compromise. Considerations of strength, weight, a small overall diameter, component interchangeability and satisfactory combustion in all cylinders, often mean irregular disposition of the wrist‐pin centres on the master rod and variations in the stroke of different cylinders; consequent on which small differences occur in compression ratio, leading to dissimilar combustion conditions between the cylinders.