| 摘要 |
The invention relates to a multistage control drive between a crankshaft and at least one camshaft of an internal combustion engine according to the preamble of claim 1, in particular for an internal combustion engine to be used in a motor vehicle. The aim of the invention is to provide a multistage control drive between a crankshaft and at least one camshaft of an internal combustion engine with reduced friction, wherein the control drive can be implemented in an inexpensive manner. An internal combustion engine multistage control drive according to the invention comprises a crankshaft (46) and at least one camshaft, and the control drive (10) comprises a primary drive (12), by means of which a first rotor (24) coupled to a crankshaft (46) drives a second rotor (28) via a first belt drive structure (16). The second rotor (28) is rotationally fixed to a third rotor (34), and the third rotor (34) is the drive element of a secondary drive (14), by means of which a fourth rotor (38) coupled to the at least one camshaft is driven via a second belt drive structure (20). The second rotor (28) and/or the third rotor (34) has a noncircular contour. |
