Eagleburgmann Germany Gmbh & Co. Kg

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

Carl Freudenberg Kg

Ferdinand Werdecker

Andreas Fesl

Benjamin Hellmig

Florian Bauer

Josef Strobl

Klaus Lang

Andreas Schrüfer

Joachim Otschik

Peter Droscher

Berthold Schulten

Thomas Keller

Rudolf Schicktanz

Rolf Johannes

Peter Dröscher

Peter Feigl

Peter Haselbacher

Jörg Thelke

Michael Müller

Glenn Schmidt

Sven Meier

Stefan Schnakenberg

Stephan Rankl

Johannes Strohmeier

Dieter Klusch

Maximilian Frank

Giuliano Rossi

Klaus Kneissl

The invention relates to a mechanical seal arrangement for sealing a process chamber (), which is filled with a non-toxic, gaseous process medium, with respect to a bearing chamber (), comprising a first mechanical seal () with a rotating slide ring () having a first sliding surface () and a stationary slide ring () having a second sliding surface (), which define a first sealing gap () between the sliding surfaces (), a second mechanical seal () with a rotating slide ring () having a third sliding surface () and a stationary slide ring () having a fourth sliding surface (), which define a second sealing gap () between the sliding surfaces (), a first pretensioning device () which prestresses the stationary slide ring () of the first mechanical seal () in the axial direction (X-X) and a second pretensioning device () which prestresses the stationary slide ring () of the second mechanical seal () in the axial direction (X-X), a fluid chamber () arranged between the first mechanical seal () and the second mechanical seal (), which is in fluid connection with the first and second sealing gap and, in operation, receives leakage from the process chamber () via the first sealing gap (), and from which a return line () leads off, configured for a return of process medium from the fluid chamber () to a process area.

Mechanical seal arrangement

The invention relates to a compressor arrangement comprising a compressor () for compressing a process gas () from a suction region () towards a pressure region (), a mechanical seal arrangement () for sealing against an atmosphere () on a shaft () of the compressor (), wherein the mechanical seal arrangement comprises a mechanical seal () having a stationary slide ring () with a first sliding surface () and a rotating slide ring () with a second sliding surface (), which define a sealing gap () between the sliding surfaces (), and a barrier fluid supply () with a barrier fluid line () which extends from the pressure region () of the compressor () to the mechanical seal () and through which process gas is branched off from the pressure region, the stationary slide ring () having a through opening (), which extends from a rear side () of the stationary slide ring () to an orifice at the first sliding surface () of the stationary slide ring to supply process gas from the barrier fluid line () through the stationary slide ring () to the sealing gap ().

Compressor arrangement with reduced process gas consumption

The invention relates to a gas-lubricated mechanical seal arrangement () comprising a first mechanical seal () having a first rotating slide ring () and a first slide ring () defining a first sealing gap () between sealing surfaces (), the first slide ring () having a passageway () for supplying a barrier fluid to the first sealing gap (), wherein the passageway () extends from a rear surface () to the sliding surface () of the first stationary slide ring (), and wherein on the first rotating slide ring () a first secondary seal () for sealing and a centering device () for centering of the first rotating slide ring () are arranged.

Zero-emission mechanical seal arrangement

The invention relates to a gas-lubricated mechanical seal arrangement using a gaseous fluid as a barrier medium, comprising a mechanical seal comprising a rotating slide ring () and a stationary slide ring () defining a seal gap () therebetween, a biasing means () biasing the stationary slide ring () towards the rotating slide ring (), a fluid space (), into which the gaseous fluid can be introduced, a first slide ring carrier () for retaining the rotating slide ring (), the first slide ring carrier () having a first axial surface (), a second slide ring carrier () for retaining the stationary slide ring (), the second slide ring carrier () having a second axial surface (), the second slide ring () and the stationary slide ring () being arranged together on a displacement surface () so as to be displaceable in the axial direction (X-X), an axial gap (), which is limited by the first axial surface () and the second axial surface (), and an antechamber () which is formed at the sealing gap () of the mechanical seal and which is connected to the fluid space () via the axial gap ().

Gas-lubricated mechanical seal having improved soiling protection

The invention relates to a mechanical seal assembly comprising a mechanical seal () comprising a rotating mechanical seal () and a stationary mechanical seal () defining a sealing gap () therebetween, and a one-piece safety seal () provided as a redundant seal in the event of failure of the mechanical seal () and adapted to seal at a rotating component, the safety seal () comprising a base body () and a sealing area () projecting from the base body () in the axial direction (X-X) and being flexible, a thickness of the sealing area () in the radial direction being smaller than a thickness of the base body () in the radial direction, and the safety seal () being arranged in a stationary manner and comprising a sealing surface () on an inner circumference.

Mechanical seal assembly with safety seal

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

Growing community of inventors

Walchensee, Germany

Ferdinand Werdecker