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Patent Searching and Data


Title:
SLIDE RING SEAL
Document Type and Number:
WIPO Patent Application WO/2014/173495
Kind Code:
A3
Abstract:
The invention relates to a slide ring seal, comprising a slide ring (1), which is supported in such a way that the slide ring is axially movable, and a counter ring (3). The slide ring (1) and the counter ring (3) have respective sealing surfaces (1a, 3a) contacting one another. The sealing surface (1a) of the slide ring (1) faces the sealing surface (3a) of the counter ring (3). The slide ring (1) is pressed against the counter ring (3) by a bellows-like spring means (4). With regard to the aim of designing and further developing a slide ring seal of the aforementioned type in such a way that the slide ring seal has an especially flexible slide ring and/or counter ring after economical and trouble-free production, the slide ring seal is characterised in that at least one sealing surface (1a, 3a) has elevations or unevenness of a magnitude from 0.1 μm to W mm, W being calculated in accordance with the formula W = 0.03 Dm / s, the average diameter Dm being the average of the outside diameter (Da) and the inside diameter (Di) of the circular-ring-shaped sealing surface (1a, 3a), and s representing the thickness of the slide ring (1) or counter ring (3).

Inventors:
NEUBERGER SOEREN (DE)
BOCK EBERHARD (DE)
GUENTERT ALEXANDER (DE)
LANG KLAUS (DE)
Application Number:
PCT/EP2014/000936
Publication Date:
March 12, 2015
Filing Date:
April 08, 2014
Export Citation:
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Assignee:
FREUDENBERG CARL KG (DE)
International Classes:
F16J15/34; F16J15/36
Foreign References:
DE102011114349A12012-04-05
GB2061411A1981-05-13
US20040245729A12004-12-09
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