Accessory gearbox device with a generator for a turbine engine

The generator (12) has a rotor (23) coupled to a shaft (13) of an auxiliary gearbox device (9) of an engine and rotatably mounted relative to a stator (25). A stator region (28) receiving the stator is separated from a rotor region (27) receiving the rotor, where the rotor in the rotor region is supplied with a cooling medium i.e. oil. A separator (29) is extended between the stator and the rotor to separate the stator region from the rotor region. The separator is made of non-magnetic material. A cooling device supplies the cooling medium to the rotor region. An independent claim is also included for an auxiliary gearbox device.