Eagleburgmann Germany Gmbh & Co. Kg

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

Carl Freudenberg Kg

Burgmann Industries Gmbh & Co. Kg

W. Muller Gmbh

Klaus Lang

Rolf Johannes

Andreas Schrüfer

Joachim Otschik

Günther Lederer

Armin Laxander

Peter Dröscher

Thomas Zauner

Jens Hofmann

Eberhard Bock

Andreas Fesl

Herbert Reichl

Berthold Schulten

Ferdinand Werdecker

Peter Droscher

Thomas Keller

Rudolf Schicktanz

Clemens Simon

Peter Feigl

Peter Haselbacher

Josef Nosowicz

Soeren Neuberger

Jörg Thelke

Petia Philippi

Berthold Vogel

Michael Müller

Jurgen Wolf

Georg Steigenberger

Sven Meier

Peter Waidner

Stefan Schnakenberg

Michael Glawion

Alexander Guentert

Thomas Holzapfel

Manfred Oppler

Volkert Wanner

The invention relates to a mechanical seal assembly comprising a slide ring seal () having a rotating slide ring () with a first slide surface () and a stationary slide ring () with a second slide surface (), a sealing gap () being defined between the first and second slide surfaces, the stationary slide ring () having a through hole () extending from a rear side () of the stationary slide ring to an orifice () of the second slide surface () and a gas supply line () extending from a gas source to an inlet () of the through hole () at the rear side of the stationary slide ring, wherein grooves () are formed in at least one of the sliding surfaces (), the grooves being arranged in radial direction between the orifice () of the through hole () and a radially outer outlet portion () of the sealing gap ().

Self-suctioning mechanical seal assembly

The invention relates to a method of operating a mechanical seal assembly () having a mechanical seal () with a rotating sliding ring () and a stationary sliding ring (), defining a sealing gap () between the sliding surfaces thereof, comprising the steps of: collecting operating data and/or environmental data of the mechanical seal (), transmitting the collected operating data and/or environmental data to a digital twin () of the mechanical seal (), simulating and monitoring the operation of the mechanical seal () using the digital twin () based on the transmitted operating data and/or environmental data of the mechanical seal (), and retransmitting a simulation result and/or data of the digital twin.

Method for operating a mechanical face seal assembly, and mechanical face seal assembly

The invention relates to a mechanical seal comprising a rotating slide ring and a stationary slide ring defining a sealing gap therebetween, one of the slide rings having at least a first row of a plurality of first grooves with a foot region on a first radius and a head region on a second radius wherein a second circumferential sliding region is provided between the head regions of the radially outermost row of grooves of the slide ring and an outer radial edge of the slide ring, the other of the slide rings having at least a second row of a plurality of second grooves with a foot region at a third radius and a head region at a fourth radius wherein a second circumferential sliding region is provided between the head regions of the radially outermost row of grooves of the slide ring and an external radial edge of the slide ring, wherein the first radius is smaller than the third radius, and wherein the second radius is smaller than the fourth radius.

Mechanical seal with improved groove arrangement

A pre-mounted exchange insert of a drill wash device is disclosed for connecting a stationary washpipe to a rotating washpipe, which includes a mechanical seal assembly with a stationary seal ring and a rotating seal ring, a first seal ring carrier on which the stationary seal ring is arranged, a second seal ring carrier on which the rotating seal ring is arranged, a connection component which is configured to connect the exchange insert to the stationary washpipe, and an adjusting mechanism operative in an axial direction with a screw connection for changing an axial length of the exchange insert, wherein the screw connection is connected to the second seal ring carrier to permit, in an axial direction, an adjustment of the second seal ring carrier, the mechanical seal assembly, and the first seal ring carrier relative to the connection component.

Pre-mounted exchange insert of a drill wash device

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

A slide ring seal has a slide ring, supported such that the slide ring is axially movable, and a counter ring. The slide ring and the counter ring have respective sealing surfaces contacting one another. The slide ring sealing surface faces the counter ring sealing surface. The slide ring is pressed against the counter ring by a bellows-like spring element. The slide ring seal may be designed so the slide ring seal has an especially flexible slide ring and/or counter ring after economical and trouble-free production, the slide ring seal has at least one sealing surface with elevations or unevenness of a magnitude from 0.1 &#x3bc;m to W mm, W conforms to the formula W=0.03 Dm/s, wherein the average diameter Dm is the average of the circular-ring-shaped sealing surface's outside (Da) and inside (Di) diameter, and s is the slide ring or counter ring thickness.

Slide ring seal

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 device for continuous measurement of the forces acting upon a movable compressible playable object is provided with at least one transmitter communicating with at least one receiver outside the movable object. The at least one receiver transforms signals received and evaluates them online. The movable compressible playable object, for instance a ball, includes at least one pressure sensor and/or at least one three-dimensional acceleration sensor as well as a converter for transforming signals therefrom to transmit them to the transmitter. A method for the use of this device causes activation of the transmitter in the movable object so that a system is created for the measurement of the forces acting upon such an object wherein the received measuring signals are present in evaluated form, online or offline, to be analyzed. By means of the activation method, the active sensor system is initiated to receive and transmit measuring signals.

Stand-alone miniaturized communication module

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

Beuerberg, Germany

Klaus Lang