Mechanical seal assembly

US7862046B2 · kind B2 · utility

Assignee

• EagleBurgmann Germany GmbH & Co. KG · DE

Inventors

• Günther Lederer · Geretsried, DE
• Andreas Schrufer · Wolfratshausen, DE
• Peter Droscher · Geretsried, DE
• Petia Philippi · Wolfratshausen, DE
• Armin Laxander · Ebenhausen, DE

Key dates

• Filing date: Nov 17, 2008
• Grant date: Jan 4, 2011
• Expiry date: Nov 17, 2028

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16J15/342
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

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.