%0 Conference Paper %1 haffner2024insights %A Haffner, Georg %A Baumann, Matthias %A Bauer, Frank %B Proceedings of the 22nd International Sealing Conference (ISC) %C Frankfurt am Main %D 2024 %I Fachverband Fluidtechnik im VDMA e.V %K F_Bauer G_Haffner M_Baumann dichtungstechnik ima peer-review %P 479 - 494 %R 10.61319/DI2CJQ5C %T Insights into the pumping behaviour of sealing counterfaces using continuous logging %U https://doi.org/10.61319/DI2CJQ5C %X Surface structures of the sealing counterface are called “lead structures” when they have the capability to pump oil rotation dependent through the sealing contact of a rotary shaft seal systems. This feature is called “pumping effect”. The structures interrupt the equilibrium state of the sealing system, which may cause dry run or leakage as failure result. Especially for higher circumferential velocities the pumping effect increases and therefore cannot be neglected. To assess the functional influence of lead structures on the sealing system, one can measure the pumping rate of the sealing counterface experimentally. The higher the pumping capability of a sealing counterface, the more likely the sealing system will fail. In this paper, the development a new pumping rate evaluation method with the help of a continuously measuring scale, which allows to visualize the course of the pumping rate over time, is described. With this knowledge it is possible to determine the end of the running-in phase of the rotary shaft seal and to determine the minimum duration of the pumping rate tests. The pumping rate evaluation method is demonstrated with different shaft counterfaces to validate the stability of the new method. %@ 978-3-8163-0768-6

@inproceedings{haffner2024insights, abstract = {Surface structures of the sealing counterface are called “lead structures” when they have the capability to pump oil rotation dependent through the sealing contact of a rotary shaft seal systems. This feature is called “pumping effect”. The structures interrupt the equilibrium state of the sealing system, which may cause dry run or leakage as failure result. Especially for higher circumferential velocities the pumping effect increases and therefore cannot be neglected. To assess the functional influence of lead structures on the sealing system, one can measure the pumping rate of the sealing counterface experimentally. The higher the pumping capability of a sealing counterface, the more likely the sealing system will fail. In this paper, the development a new pumping rate evaluation method with the help of a continuously measuring scale, which allows to visualize the course of the pumping rate over time, is described. With this knowledge it is possible to determine the end of the running-in phase of the rotary shaft seal and to determine the minimum duration of the pumping rate tests. The pumping rate evaluation method is demonstrated with different shaft counterfaces to validate the stability of the new method.}, added-at = {2024-11-04T17:35:10.000+0100}, address = {Frankfurt am Main}, author = {Haffner, Georg and Baumann, Matthias and Bauer, Frank}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2fe3db47793107b88647ebeb1486954ed/ima-publ}, booktitle = {Proceedings of the 22nd International Sealing Conference (ISC)}, doi = {10.61319/DI2CJQ5C}, eventdate = {01.-02. Oktober}, eventtitle = {22nd ISC, Stuttgart}, interhash = {cdfa65c90a796d23df96e5a2e41e7e3b}, intrahash = {fe3db47793107b88647ebeb1486954ed}, isbn = {978-3-8163-0768-6}, keywords = {F_Bauer G_Haffner M_Baumann dichtungstechnik ima peer-review}, language = {english}, month = {Oktober}, note = {759 (peer-review)}, pages = {479 - 494}, publisher = {Fachverband Fluidtechnik im VDMA e.V}, series = {Fluidtechnik}, timestamp = {2025-06-02T16:18:38.000+0200}, title = {Insights into the pumping behaviour of sealing counterfaces using continuous logging}, url = {https://doi.org/10.61319/DI2CJQ5C}, venue = {Stuttgart}, year = 2024 }