Crankshaft for reciprocating piston engine i.e. internal-combustion engine, has joint formed between crank cheek and bearing elements, where joint is formed outside transient area of cylindrical lateral contour of bearing elements

摘要

The crankshaft has a stroke bearing element (2) for supporting a connecting rod. A crank cheek (3) connects a crank bearing element (1) to the stroke bearing element. A joint (4) between the crank cheek and the bearing elements is formed outside a transient area (5) of a cylindrical lateral contour of the bearing elements and an outer contour of the crank cheek running angularly to the lateral contour. A circulating bar (6) is formed at the crank bearing element and/or stroke bearing element, where axial width of the circulating bar is larger than cross-section of the crank cheek.