Voith Patent Gmbh

Michael Rosovits

Hans Schirle

Hartmut Graf

An axial thrust offloading device for axial thrust balance of a machine shaft including a thrust balance ring with a supply channel for a pressurized medium opening into an annular space on the ring's face, first and second side disks disposed axially adjacent to and on opposed sides of the ring and forming first and second pressure chambers closed off on an exit flow inside by a labyrinth seal and on an inlet flow side to a pressurized medium via first and second restrictor locations, and a disk-shaped restrictor element disposed in the annular space, wherein relative axial movement between the ring and the restrictor element provides for reciprocal opening of the first and second restrictor locations to form a pressure difference between the first and second chambers.

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Crailsheim, Germany

Michael Rosovits