Eagleburgmann Germany Gmbh & Co. Kg

Burgmann Industries Gmbh & Co. Kg

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

Peter Dröscher

Andreas Schrüfer

Klaus Lang

Andreas Fesl

Joachim Otschik

Günther Lederer

Berthold Schulten

Ferdinand Werdecker

Armin Laxander

Thomas Keller

Rolf Johannes

Rudolf Schicktanz

Peter Haselbacher

Josef Nosowicz

Dieter Pfeil

Josef Gerg

Jörg Thelke

Petia Philippi

Berthold Vogel

Andreas Pehl

Glenn Schmidt

Hans Steigenberger

Georg Steigenberger

Carsten Scholz

Joseph Fichtner

Stefan Schnakenberg

Robert Reischl

Thomas Stemplinger

Peter Waidner

Gerard Hamelink

Michael Sattler

Eric Vanhie

Manfred Oppler

Bernhard Jenisch

Thomas Holzapfel

Sven Meier

Gerard Harmelink

A slide ring seal arrangement comprises a rotationally fixed slide ring () and a slide ring (), which is provided for rotating together with a rotating component, these slide rings each being held in a loose seat and interacting, in, in essence, radially oriented sealing surfaces, which are prestressed with a main prestressing force while in contact with one another. Each slide ring, on its front face that faces away from the sealing surface, is axially supported on a supporting part () via an annular bearing surface () provided between the respective supporting part and the adjacent front face of the respective slide ring. A load ratio (d&#x2212;d)/(d&#x2212;d) of =2.0, preferably between 0.8 and 2.0, preferably no greater than between 1.0 and 1.5, more preferably approximately 1.3 is maintained on the bearing surface (). The measurement (d&#x2212;d) of each bearing surface () is equal to =10 mm, preferably between 0.2 and 2.0, preferably no more than approximately 0.6 mm.

Slide ring seal arrangement

A mechanical seal assembly including at least one pair of co-operating seal rings, one of which is provided for common rotation with a rotating component and the other of which is provided rotationally fixed at a stationary component. One of the seal rings is axially movable and axially biased with a biasing force against the other seal ring, the biasing force being transmittable through a force transmitting ring to the respective seal ring, in order to bias facing sliding surfaces of the seal rings, between which a sealing gap is formed during operation, in a mutual sealing engagement, and a secondary sealing assembly provided at the force transmitting ring for sealing the axially movable seal ring with respect to at least one circumferential guiding surface of a guiding component guiding the movement of the seal ring and the force transmitting ring.

Mechanical seal assembly

A dual seal assembly, in particular for sealing a gas compressor, includes a first mechanical seal assembly including a pair of co-operating seal rings, one of which is provided for common rotation with a rotating component and the other of which is provided rotationally fixed at a stationary component. A second mechanical seal assembly includes a pair of co-operating seal rings, one of which is provided for common rotation with a rotating component and the other of which is provided rotationally fixed at a stationary component. One of the seal rings is axially movable and axially biased with a biasing force against the respectively other seal ring to bias facing sliding surfaces of the seal ringss in a mutual sealing engagement. A secondary sealing assembly is provided for sealing the axially movable seal ring with respect to at least one circumferential guiding surface of a guiding component.

Dual seal assembly

A secondary sealing element comprises a base body () made of a synthetic material and comprising a base portion () and a seal portion () which each comprise coaxially aligned, axially adjacent through bores () for the passage of a component, and an annular disc element () accommodated in the base portion and comprising a through bore () coaxially aligned with the through bores in the base and seal portions and being made of a material which differs from that of the base body. In the unloaded state, the through bore () of the annular disc element () has a radial dimension d which is greater than that Dof the through bore () in the seal portion () and smaller than that Din the base portion () of the base body (). The annular disc element consists of a carbon material. An important field of application for the secondary sealing element is that of mechanical face seals for sealing relatively moveable components.

Secondary sealing element

Growing community of inventors

Geretsried, Germany

Peter Dröscher