Patent ID: 7743746
Filing Date: 2010-06-29
Classification: B05D,C08K,C08L,C23C,F16C,F16J,Y10T

Abstract:
1. A connecting rod free of bearing shells for an internal combustion engine, having a small connecting rod end provided with a slide bearing surface, for accommodating a piston pin, and a large connecting rod end provided with a slide bearing surface, which surrounds a crank journal, wherein at least one of the slide bearing surfaces has a substantially permanent self-lubricating coating of a resin that is hardened thermally, with solid lubricant particles embedded in it, directly connected with the connecting rod material, wherein the resin is a polyamide imide, and wherein the solid lubricant particles consist of one or of a mixture of two of the materials graphite, molybdenum disulfide, tungsten disulfide, hexagonal boron nitride, or PTFE, in each instance, wherein the coating of the slide bearing surface contains 50 to 60 wt.-% of the solid lubricant particles, and wherein the solid lubricant particles have a particle size of 1 to 3 μm.