Mechanical face seal with a rotating counter ring and precisely defined clamping

US9759331B2 · kind B2 · utility

Assignee

• Carl Freudenberg KG · DE

Inventors

• Martin Kirchhof · Miesbach, DE
• Armin Laxander · Ebenhausen, DE
• Guenther Lederer · Geretsried, DE
• Thomas Keller · Morges, CH

Key dates

• Filing date: Apr 18, 2011
• Grant date: Sep 12, 2017
• Expiry date: Jul 3, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16J15/3468
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A mechanical face seal includes a rotating counter ring having a sealing surface and two radial planes. Each of the radial planes is associated with a clamping cam. A stationary face seal ring has a sealing surface opposite from the sealing surface of the counter ring. The sealing surfaces of the counter ring and the face seal ring bear against each other.