초록 ▼

The invention concerns a system for active reduction of radial vibrations of a rotating shaft (4), especially the drive shaft of an internal combustion engine (1), with at least one active electromagnetic device (7; 10; 15, 16), which is configured and controlled such that it applies radial forces t

The invention concerns a system for active reduction of radial vibrations of a rotating shaft (4), especially the drive shaft of an internal combustion engine (1), with at least one active electromagnetic device (7; 10; 15, 16), which is configured and controlled such that it applies radial forces to the shaft (4), which counteract the radial vibrations of the shaft (4).

대표청구항 ▼

[ What is claimed is:] [1.] System for active dampening of vibrations of the drive shaft of an internal combustion engine, by means of an electric machine, which has two active electromagnetic units that can rotate relative to each other, one of which is connected to the rotating shaft and the other

[ What is claimed is:] [1.] System for active dampening of vibrations of the drive shaft of an internal combustion engine, by means of an electric machine, which has two active electromagnetic units that can rotate relative to each other, one of which is connected to the rotating shaft and the other is secured against turning or--alternatively--connected to another rotating shaft, wherein one of the active units comprises at least two electrically independently actuable active sectors for generating traveling fields, each of which exerts forces with radial and tangential components on the other active unit, such that the electric machine dampens both radial and rotational vibrations of the shaft.