Eagleburgmann Germany Gmbh & Co. Kg

Feodor Burgmann Dichtungswerke Gmbh & Co.

Robert Woppowa

Wolfgang Ries

Dieter Ziegenbein

Reinhard Svejkovsky

Rudolf Schicktanz

Peter Haselbacher

Andreas Eiletz

Elisabeth Brustmann

Thomas Keller

Jorg Thomas Thelke

Jörg Thelke

Ulrich Reinfrank

Joerg Thelke

The invention relates to a mechanical seal arrangement, comprising a rotating slide ring () and a stationary slide ring (), which define a sealing gap () in between them, and a bellows unit () with a bellows element () and an intermediate disc (), wherein the bellows element () has a first connector area (), a second connector area (), and a bellows intermediate area (), wherein the bellows element () is made of an elastomer material and provides a connection between the rotating slide ring () and a rotating structural component (), wherein the intermediate disc () is arranged between the bellows element () and the rotating slide ring (), and wherein the intermediate disc () has at least one slit () that has a slit width (B) that is smaller than a slit length (S), and wherein the slit () is closed at one side, so that a connection area () remains at the slit () at the intermediate disc ().

Mechanical seal arrangement with a bellows element

The invention relates to a mechanical seal arrangement, comprising a rotating slide ring and a stationary slide ring which define a sealing gap therebetween, and a bellows unit with a bellows element and an intermediate disk, wherein the bellows element has a first connection region, a second connection region and a bellows intermediate region, wherein the bellows element is produced from an elastomer material and provides a connection between the rotating slide ring and a rotating component, wherein the intermediate disk is arranged between the bellows element and the rotating slide ring, and wherein an inner peripheral region of the intermediate disk is arranged for support on the rotating component.

Mechanical seal arrangement having a bellows element

A retaining ring for a seal ring of a mechanical seal assembly comprises a recess () inserted at the side of one of its axial ends for a sealing receipt and force-fit assembly of the seal ring (). In the recess (), an engaging ring () made of a flexible material and having a corrugated profile at its inner periphery is retained, wherein at least the elevations () of the corrugated profile may be brought in a force-fit engagement with the outer periphery of the seal ring, when the seal ring is moved into the engaging ring by an external mounting force. Each elevation has a leading flange in direction (P) of the mounting movement having a inclination angle &#x3b1;larger than &#x3b1;of a lagging flange ().

Retaining ring for a seal ring of a mechanical seal assembly

A mechanical face seal device includes a bellows assembly comprising a bellows member of resilient material having axially spaced mounting portions interconnected by an intermediate foldable portion, one of said mounting portions being adapted to be fixed relative to a rotary component whilst the other is in torque transferring relationship with a rotary annular seal member, and a biasing means for diasing the rotary annular seal member against the stationary annular seal member. An essentially stiff support member having a predetermined radial dimension is provided for axially supporting the rotary annular seal member and is itself supported by the bellows member. The bellows assembly further comprises a driving housing having axially spaced force transferring portions, of which one is in force transferring relationship with the mounting portion of the bellows member at the annular seal member side, whilst the other one is in force transferring relationship with the mounting portion at the rotary component side thereof, wherein the force transferring portion facing the mounting portion at the component side has an internal radial dimension which is less than the external radial dimension of the support member and greater than external radial dimension of the rotary annular seal member.

Mechanical face seal device

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Wolfratshausen, Germany

Robert Woppowa