Patent ID: 8398363

Claim:
A device for sealing a bearing housing which holds a lubricating oil, from which an exhaust gas turbocharger rotor which is supported inside the housing is guided into a compressor housing, which is loadable by a mass flow of a charger, the device comprising: a partition for separating an oil-collecting chamber enclosed by the bearing housing and an impeller backspace of the compressor housing from each other, the partition having an axially extending wall extension for guidance annularly around the rotor; an annular sealing disk for fastening on a shaft of the rotor and for projecting into the oil-collecting chamber; a separating gap arranged between the sealing disk and the wall extension; a seal for arrangement between the rotor and the partition; a first oil-collecting channel formed in a surface of the wall extension for arrangement in the oil-collecting chamber; and a drip device connected to the first oil-collecting channel for directing lubricating oil collected in the oil-collecting channel into an oil drain by gravity; wherein the drip device is formed in a lower sector of an end face of the wall extension, to lie beneath a rotational axis of the rotor for delimiting the separating gap, the drip device including a drain-off surface for lubricating oil and for orientation substantially perpendicularly to a rotational axis of the rotor and for axial offset towards the impeller backspace in relation to a remaining part of the end face.