Patent ID: 6283085
Filing Date: 2001-09-04
Classification: F02B,F16C

Abstract:
A reciprocating engine, and more particularly an internal combustion engine, having at least two cylinders, each accommodating a reciprocating piston, and with at least one primary connecting rod and at least one secondary connecting rod, whose small ends are connected to the respective piston, and whose crankshaft ends opposite the small ends of the connecting rods are mounted on a common crank pin of a crankshaft, the crankshaft end of the primary connecting rod having at least one shoulder whose inner surface is rotatably connected to the crank pin via a first big end bearing and whose outer surface constitutes a bearing surface for at least one secondary connecting rod, wherein the inner and outer surfaces constituting the bearing surfaces of the essentially tubular shoulder are configured as essentially cylindrical surfaces extending around the full periphery, and wherein the at least one secondary connecting rod has a crankshaft end with a non-divided, big eye surrounding the shoulder of the primary connecting rod, the inner surface of said eye being supported on the outer surface of the shoulder via a second big end bearing.