Burgmann Dichtungswerke Gmbh and Co. Kg

Werner Wolf

Berthold Schulten

Thomas Keller

Peter Haselbacher

Josef Nosowicz

Guenther Lederer

Georg Steigenberger

Andreas Schruefer

Peter Droescher

A face seal device for use with components rotating at a high rotational speed includes a non-rotating face seal ring ( ) and a rotary face seal ring ( ) mounted in a loose fit on and rotatable together with the rotary component. The rotary face seal ring includes a sealing face ( ) which, in operation, is essentially radially aligned for cooperation with an opposite sealing face ( ) of the non-rotating face seal ring. The rotary face seal ring is formed of at least a base portion ( ) and an extension portion ( ). The extension portion provides an additional mass and has an areal center of gravity axially spaced from the areal center of gravity of the base portion An axial spacing z between the areal centers of gravity and the mass m of the extension portion are in specific relationship with each other, whereby in operation a torque directed towards the non-rotating face seal ring is applied to the rotary face seal ring. This torque arises from the centrifugal forces that are a function of the mass of the extension portion and the spacing between the areal centers of gravity.

Face seal device for high rotational speeds

A face seal device for use with components rotating at a high rotational speed includes a non-rotating face seal ring ( ) and a rotary face seal ring ( ). The rotary face seal ring is mounted in a loose fit for common rotation with a rotating component and includes a sealing face ( ) which, in operation, is essentially radially aligned for cooperation with an opposite sealing face ( ) of the non-rotating face seal ring. A heavy-mass-contributing element ( ) is arranged to rotate in common with the rotating component and engages a portion of the rotary face seal ring. The center of gravity of the heavy-mass-contributing element is axially spaced from that of the rotary face seal ring, whereby, in operation, a torque directed towards the non-rotating face seal ring is applied to the rotary face seal ring. This torque arises from the centrifugal forces that correspond to the mass-contributing element and the spacing between the centers of gravity.

Face seal device with additional mass for high rotational speeds

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Mammendorf, Germany

Werner Wolf