Patent ID: 7479720

Claim:
A seal of an electric machine installed within a motor vehicle drive mechanism with of one of a wet-running oil-cooled disk gearshift element, a multiple disk clutch and a multiple disk brake being accommodated within a free construction space of a rotor of the electric machine, the seal comprising: to achieve a very high degree of oil-free annular gap ( 3 ) between the rotor ( 2 ) and a stator ( 1 ) of the electric machine at a face side of an electric machine annular gap ( 3 ), at least one lining ( 9 ) is fixed to the rotor ( 2 ) adjacent an end of the annular gap ( 3 ), such that the lining ( 9 ) at least partially encloses and seals the annular gap( 3 ), the rotor ( 2 ) is located within the stator( 1 ) such that rotation of the rotor ( 2 ) centrifugally directs oil within the annular gap ( 3 ) radially outward past the at least one lining ( 9 ) and rotation of the rotor draws a flow of air into the annular gap ( 3 ) which flows towards the lining ( 9 ) and prevents fluid from entering the annular gap ( 3 ).