Mechanical seal arrangement suitable for pressure reversal

US11821522B2 · kind B2 · utility

Assignee

• EagleBurgmann Germany GmbH & Co. KG · DE

Inventors

• Peter Droscher · Geretsried, DE
• Robert Reischl · Bad Tölz, DE
• Thomas Stemplinger · Gaißach, DE
• Carsten Scholz · Eurasburg, DE

Key dates

• Filing date: Dec 17, 2019
• Grant date: Nov 21, 2023
• Expiry date: May 28, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16J15/3452
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a mechanical seal assembly comprising a mechanical seal (2) with a rotating slide ring (3) and a stationary slide ring (4) defining a seal gap (5) therebetween, a pretensioning device (6) which biases the stationary slide ring (4) in the axial direction (X-X) of the slide ring seal arrangement, a support ring (7) which is arranged on the stationary slide ring (4), the support ring (7) being axially movable relative to the stationary slide ring (4) the pretensioning device (6) being arranged between the support ring (7) and the stationary slide ring, a fixing device (8) which is arranged for axially movable fixing the support ring (7) to a stationary component, a stop (9) which limits a distance (W1) by which the axially movable support ring (7) can be moved, and a secondary seal (10) which is arranged to seal between the support ring (7) and the stationary component.