Patent ID: 6745740
Filing Date: 2004-06-08
Classification: F16C,F16F,Y10T

Abstract:
An internal combustion engine comprising:a crankshaft having at least one rod journal and at least one main journal; a cylinder block rotatably supporting said crankshaft; at least one coupling member rotatably coupled to said crankshaft; said at least one coupling member having an annular, substantially cylindrical inner wall defining a crank bore circumscribing one of said at least one main journal and said at least one rod journal of said crankshaft; said inner wall of said crank bore having at least one substantially annular recessed portion formed therein, said at least one recessed portion is axially spaced from opposite ends of said inner wall; and a vibration dampener assembly disposed in said at least one recessed portion thereby substantially dampening a transmission of vibrations in said internal combustion engine.