Slide ring seal

US9476506B2 · kind B2 · utility

Assignee

• Carl Freudenberg KG · DE

Inventors

• Soeren Neuberger · Hockenheim, DE
• Eberhard Bock · Prüm, DE
• Alexander Guentert · Heidelberg, DE
• Klaus Lang · Munster, DE

Key dates

• Filing date: Apr 8, 2014
• Grant date: Oct 25, 2016
• Expiry date: Apr 8, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16J15/36
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

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 μm 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.