Hydraulic Rod Seals with laser-structured Back-Surface
U. Frenzel, and H. Müller. Proceedings of the 14th International Conference on Fluid Sealing, page 493--503. London, Mechanical Engineering Publications, (1994)
Abstract
Optimum rod seals of hydraulic cylinders require effective wiping on the outstroke and, ideally, a complete inward pumping of the adhering film on the instroke. This is achieved by an asymmetric profile which creates a high maximum contact pressure gradient at the sealing edge on the fluid side and a corresponding low gradient near the outside end of the contact. In practice, however, by rising the fluid pressure inward-pumping diminishes which is due to a continuing increase of the maximum pressure gradient at the outside end of the seal contact. Based on the experience that a second circumferentially closed edge does not prevent the increase of leakage, the authors pursued the idea to support the back-surface with a large number of small asperities forming small interconnected gaps which boost inward pumping and reduce friction. Experimental results on the sealing capacity and friction of various back-surface structures are presented, and the design characteristics ofoptimum rod seals are discussed.
Proceedings of the 14th International Conference on Fluid Sealing
year
1994
pages
493--503
publisher
Mechanical Engineering Publications
series
BHR Group conference series
isbn
0852989202
file
Frenzel, Müller 1994 - Hydraulic Rod Seals with laser-structured:C\:\\Users\\Bruno Josef Müller\\Documents\\Citavi 6\\Projects\\VeröffentlichungenDT-Homepage - Upload\\Citavi Attachments\\Frenzel, Müller 1994 - Hydraulic Rod Seals with laser-structured.pdf:pdf
%0 Conference Paper
%1 Frenzel.1994
%A Frenzel, Ulrich K.
%A Müller, Heinz Konrad
%B Proceedings of the 14th International Conference on Fluid Sealing
%C London
%D 1994
%E Halligan, B.
%I Mechanical Engineering Publications
%K from:brunomueller ima Dichtungstechnik
%P 493--503
%T Hydraulic Rod Seals with laser-structured Back-Surface
%X Optimum rod seals of hydraulic cylinders require effective wiping on the outstroke and, ideally, a complete inward pumping of the adhering film on the instroke. This is achieved by an asymmetric profile which creates a high maximum contact pressure gradient at the sealing edge on the fluid side and a corresponding low gradient near the outside end of the contact. In practice, however, by rising the fluid pressure inward-pumping diminishes which is due to a continuing increase of the maximum pressure gradient at the outside end of the seal contact. Based on the experience that a second circumferentially closed edge does not prevent the increase of leakage, the authors pursued the idea to support the back-surface with a large number of small asperities forming small interconnected gaps which boost inward pumping and reduce friction. Experimental results on the sealing capacity and friction of various back-surface structures are presented, and the design characteristics ofoptimum rod seals are discussed.
%@ 0852989202
@inproceedings{Frenzel.1994,
abstract = {Optimum rod seals of hydraulic cylinders require effective wiping on the outstroke and, ideally, a complete inward pumping of the adhering film on the instroke. This is achieved by an asymmetric profile which creates a high maximum contact pressure gradient at the sealing edge on the fluid side and a corresponding low gradient near the outside end of the contact. In practice, however, by rising the fluid pressure inward-pumping diminishes which is due to a continuing increase of the maximum pressure gradient at the outside end of the seal contact. Based on the experience that a second circumferentially closed edge does not prevent the increase of leakage, the authors pursued the idea to support the back-surface with a large number of small asperities forming small interconnected gaps which boost inward pumping and reduce friction. Experimental results on the sealing capacity and friction of various back-surface structures are presented, and the design characteristics ofoptimum rod seals are discussed.},
added-at = {2019-12-04T17:00:37.000+0100},
address = {London},
author = {Frenzel, Ulrich K. and Müller, Heinz Konrad},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/275e79085865d1627e67ed32805c58993/brunomueller},
booktitle = {Proceedings of the 14th International Conference on Fluid Sealing},
editor = {Halligan, B.},
file = {Frenzel, Müller 1994 - Hydraulic Rod Seals with laser-structured:C\:\\Users\\Bruno Josef Müller\\Documents\\Citavi 6\\Projects\\VeröffentlichungenDT-Homepage - Upload\\Citavi Attachments\\Frenzel, Müller 1994 - Hydraulic Rod Seals with laser-structured.pdf:pdf},
interhash = {36340b53d493f067280fc67cc50e1a2d},
intrahash = {75e79085865d1627e67ed32805c58993},
isbn = {0852989202},
keywords = {from:brunomueller ima Dichtungstechnik},
pages = {493--503},
publisher = {{Mechanical Engineering Publications}},
series = {BHR Group conference series},
timestamp = {2019-12-12T10:44:03.000+0100},
title = {Hydraulic Rod Seals with laser-structured Back-Surface},
year = 1994
}