Eagleburgmann Germany Gmbh & Co. Kg

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Peter Droscher

Berthold Schulten

Andreas Schrüfer

Klaus Lang

Joachim Otschik

Armin Laxander

Günther Lederer

Ferdinand Werdecker

Rolf Johannes

Thomas Keller

Rudolf Schicktanz

Peter Haselbacher

Dieter Pfeil

Andreas Pehl

Jörg Thelke

Petia Philippi

Josef Gerg

Hans Steigenberger

Joseph Fichtner

Glenn Schmidt

Carsten Scholz

Sven Meier

Stefan Schnakenberg

Bernhard Jenisch

Thomas Stemplinger

Robert Reischl

Eric Vanhie

The invention relates to a mechanical seal assembly comprising a mechanical seal () with a rotating slide ring () and a stationary slide ring () defining a seal gap () therebetween, a pretensioning device () which biases the stationary slide ring () in the axial direction (X-X) of the slide ring seal arrangement, a support ring () which is arranged on the stationary slide ring (), the support ring () being axially movable relative to the stationary slide ring () the pretensioning device () being arranged between the support ring () and the stationary slide ring, a fixing device () which is arranged for axially movable fixing the support ring () to a stationary component, a stop () which limits a distance (W) by which the axially movable support ring () can be moved, and a secondary seal () which is arranged to seal between the support ring () and the stationary component.

Mechanical seal arrangement suitable for pressure reversal

The invention relates to a mechanical seal arrangement comprising a mechanical seal () including a rotating slide ring () and a stationary slide ring (), defining a seal gap () therebetween, a one-piece, ring-shaped slide ring carrier (), which holds the stationary slide ring (), a one-piece, ring-shaped cover (), which is arranged on the slide ring carrier (), a one-piece, ring-shaped housing (), which is detachably fixed to the cover () using fixing device (), and a one-piece first retaining ring (), which is detachably arranged on the slide ring carrier (), wherein the stationary slide ring () is clamped between the first retaining ring () and the cover (), and wherein the slide ring carrier () is connected to the slide ring carrier () by means of at least one elastic biasing member () such that the slide ring carrier () can perform movements in the axial direction of the mechanical seal arrangement together with the stationary slide ring ().

Maintenance-friendly mechanical seal

A mechanical seal arrangement includes a first mechanical seal with a rotating slide ring and a stationary slide ring, which define a sealing gap in between them. The mechanical seal arrangement includes a first sealing space that is filled with a sealing liquid. The first mechanical seal seals off the sealing space against a surrounding area, a first piston arrangement with a piston element and flexible wall areas that define a first piston interior space, wherein the first piston interior space is in fluid connection with the first sealing space. A piston outer surface of the piston element is in fluid connection with the surrounding area, and a first pre-stressing appliance that exerts a first preload force (F) on the piston element of the first piston arrangement.

Mechanical seal arrangement and well bore conveyor device

The invention relates to a mechanical seal arrangement comprising a rotating slide ring () and a stationary slide ring () which define a sealing gap () between them, a holding ring () for holding the stationary slide ring (), and a housing (), a clamp connection () being provided between the housing () and the holding ring () by way of at least one clamp component ().

Mechanical seal having a simplified construction

A seal ring for a mechanical seal, comprising a base body, a first layer applied to a first face side of a base body, and a second layer applied to a second face side of the base body. At least one of the layers is configured as a slide surface of the seal ring.

Seal ring of a mechanical seal assembly having properties extending the running time, and method for the production thereof

The present invention refers to an apparatus for rotationally fixing a seal ring () of a mechanical seal assembly retained at a mounting component () to be axially movable, comprising a force transmitting ring () retained at the mounting component to be axially movable and a rotation prevention device comprising at least one first engaging member () configured to engage with the mounting component and the force transmitting ring in a form-fit manner and at least one second engaging member () configured to engage with the force transmitting ring and the seal ring in a form-fit manner, the first engaging member being arranged circumferentially offset with respect to the second engaging member, characterized in that the engaging members () protrude axially from the force transmitting ring () or the seal ring () toward the respectively other component (seal ring or force transmitting ring) and are configured to be received in axial recesses () provided in the respectively other component with a play.

Apparatus for rotationally fixing a seal ring of a mechanical seal assembly axially movably retained at a mounting component

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Geretsreid, Germany

Peter Droscher