Crank drive for a reciprocating piston engine, and reciprocating piston engine with such a crank mechanism

摘要

The invention relates to a crank mechanism (1) for a reciprocating piston engine, having a crankshaft (2) which has at least one crankpin (6) with at least one eccentric (7) rotatably mounted on the crankpin (6), under the intermediary of which on the crankpin (6) at least one connecting rod is rotatably to store, via which a translatorisch movable in a variable compression ratio having cylinder of the reciprocating piston can be coupled articulated to the crankshaft (2), with at least one coaxial with the crankshaft (2) arranged adjusting shaft (9 ), by which by driving the adjusting shaft (9) of the eccentric (7) relative to the crank pin (6) is rotatable, whereby the compression ratio of the cylinder is adjustable, and with an actuator (10), by means of which the actuating shaft (9) drivable is, wherein the actuator (10) at one end (13) of the crankshaft (2) is arranged and in the axial direction of the crankshaft (2) connected to this eat.