%0 Conference Paper %1 Schollhammer.2003 %A Schöllhammer, Gerd %A Haas, Werner %B Proceedings of 17th International Conference on Fluid Sealing %C Cranfield %D 2003 %E Hoyes, John %I BHR Group %K G_Schöllhammer W_Haas dichtungstechnik from:brunomueller from:samuelschwamm ima %P 113-126 %T Inverted sealing arrangement - A new concept for dynamic sealing tasks %X The influence of oil temperature on the sealing function of inverted sealing arrangements was introduced. These experimental investigations were planned and analysed by experimental design software. In general the friction between the mating seal faces is higher for T oil = 40°C than for T oil = 80°C. The Pareto-diagram, coming from the experimental design method, for the leakage shows, that the factors oil- and air side contact angle a + ß and the width of contact b do effect the leakage, while the factor oil temperature Toil fect of T oil doesn't. This non-existing ef- is not that clearly detectable without experimental design. The possibility of using a PTFE-Carbon-Compound as sealing material was shown. Due to the lower frictional coefficient Il of the combination PTFE-Carbon - steel than the combina- tion rubber - steel the measured frictional torque was lower. This conforms to experimental results obtained with commonly PTFE lip seals and metal shafts. The frictional torque in- creased by increasing the width of contact b. A radial loaded inverted sealing arrangement was introduced. There was no significant influ- ence of circumferential velo city and load on the frictional torque measurable. Leakage was measured in dependence of the direction of shaft rotation. In most cases this effect is due to microasperities a few micrometers high which are metrological not observable. A spaced optimised arrangement was introduced. A reduction ofaxial space of nearly 48\% was achieved. The basic functions of the weIl known \textquotedblmodular inverted test-sealing system\textquotedbl got remained. Options for optimisation are realised and will be considered in future arrangements. %@ 9781855980444

@inproceedings{Schollhammer.2003, abstract = {The influence of oil temperature on the sealing function of inverted sealing arrangements was introduced. These experimental investigations were planned and analysed by experimental design software. In general the friction between the mating seal faces is higher for T oil = 40°C than for T oil = 80°C. The Pareto-diagram, coming from the experimental design method, for the leakage shows, that the factors oil- and air side contact angle a + ß and the width of contact b do effect the leakage, while the factor oil temperature Toil fect of T oil doesn't. This non-existing ef- is not that clearly detectable without experimental design. The possibility of using a PTFE-Carbon-Compound as sealing material was shown. Due to the lower frictional coefficient Il of the combination PTFE-Carbon - steel than the combina- tion rubber - steel the measured frictional torque was lower. This conforms to experimental results obtained with commonly PTFE lip seals and metal shafts. The frictional torque in- creased by increasing the width of contact b. A radial loaded inverted sealing arrangement was introduced. There was no significant influ- ence of circumferential velo city and load on the frictional torque measurable. Leakage was measured in dependence of the direction of shaft rotation. In most cases this effect is due to microasperities a few micrometers high which are metrological not observable. A spaced optimised arrangement was introduced. A reduction ofaxial space of nearly 48{\%} was achieved. The basic functions of the weIl known {\textquotedbl}modular inverted test-sealing system{\textquotedbl} got remained. Options for optimisation are realised and will be considered in future arrangements.}, added-at = {2020-04-06T14:04:55.000+0200}, address = {Cranfield}, author = {Schöllhammer, Gerd and Haas, Werner}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/24ce374dbf77b5b9e8d1202c53edc0ecf/test-ima}, booktitle = {Proceedings of 17th International Conference on Fluid Sealing}, editor = {Hoyes, John}, eventdate = {8. 10. April 2003}, eventtitle = {17th Int. Conference on Fluid Sealing}, interhash = {a70547bcffbfa6140362be5707c5bc21}, intrahash = {4ce374dbf77b5b9e8d1202c53edc0ecf}, isbn = {9781855980444}, keywords = {G_Schöllhammer W_Haas dichtungstechnik from:brunomueller from:samuelschwamm ima}, note = 232, pages = {113-126}, publisher = {BHR Group}, timestamp = {2021-03-25T16:51:15.000+0100}, title = {Inverted sealing arrangement - A new concept for dynamic sealing tasks}, venue = {York, UK}, year = 2003 }