Electrical machine for coupling to piston combustion engine has coupling element with torsional spring constant for damping rotational irregularities of non-active electric machine

摘要

The machine (14) has a rotor (16), a stator (26) essentially rigidly connected to the engine (10) and a coupling element (20) for connecting the rotor to a crankshaft in the engine so as to transfer torsion. The coupling element has such a torsional spring constant that rotational irregularities of the non-active electric machine with a certain resonant frequency of the engine are damped by interaction with the inertial moment of the rotor. An Independent claim is also included for an internal combustion piston engine.