Eagleburgmann Germany Gmbh & Co. Kg

Thomas Zauner

Klaus Lang

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 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.

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Pullach, Germany

Thomas Zauner