This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Influences of Leakage Gap Variations on the Dynamics of Hydraulic Chain Tensioners – Experiment and Simulation
Technical Paper
2008-01-0294
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In this work several hydraulic chain tensioners with and without check valves are analysed. Using experiment and simulation the influence of the variation of the leakage gap on the performance of the tensioners is shown. Firstly, an experimental test setup to analyse the dynamical behavior of the tensioners is introduced. The tensioners can be excited kinematically with sinusoidal signals having amplitudes between 0.02mm and 1mm and frequencies up to 250 Hz. The temperature range of the measurements matches real engine operation points. Secondly, a modular simulation approach for the hydraulic tensioning systems is presented. These models are suitable for the integration in timing chain simulations. Hence, influences of parameter variations such as leakage gap variations are directly seen. Thirdly, a comparison between simulation and measured data is shown for the analysed hydraulic chain tensioners. The simulation shows a very good match of the experimental data and the significant influence of the leakage gap on the dynamics is seen.
Recommended Content
Authors
Citation
Krueger, K., Ginzinger, L., and Ulbrich, H., "Influences of Leakage Gap Variations on the Dynamics of Hydraulic Chain Tensioners – Experiment and Simulation," SAE Technical Paper 2008-01-0294, 2008, https://doi.org/10.4271/2008-01-0294.Also In
References
- BORCHSENIUS, F. Simulation oelhydraulischer Systeme VDI Fortschrittsberichte 2003
- ENGELHARDT, T. Dynamik von Steuer- und Ventiltrieben VDI Fortschrittsberichte 2007
- ENGELHARDT, T. HOESL, A. LEBRECHT, W. ULBRICH, H. PFEIFFER, F. Simulations of Timing Chain Drives using KetSim Proceedings of the ASME Internal Combustion Engine Division Technical Conference
- FRITZ, P. Dynamik schnellaufender Kettentriebe VDI Fortschrittsberichte 1998
- HOESL, A. Dynamiksimulation von Steuerketten-trieben VDI Fortschrittsberichte 2005
- HOESL, A. ULBRICH, H. Variable Abbildung der zum Steuerkettentrieb gehoerenden hydraulischen Span-nerelemente FVV Informationstagung Motoren Fruehjahr 2004
- KRUEGER, K. ENGELHARDT, T. GINZINGER, L. ULBRICH, H. Dynamical Analysis of Hydraulic Chain Tensioners- Experiment and Simulation SAE World Congress, Detroit 2007
- NORMUNG, Deutsches I. DIN 51 563 Pruefung von Mineraloelen und verwandten Stoffen: Bestimmung des Viskositaet-Temperatur-Verhaltens Beuth Verlag GmbH 1976
- TRUCKENBRODT, E. Fluidmechanik I, Band 1: Grundlagen und elementare Stroemungsvorgaenge dichtebestaendiger Fluide Springer Verlag 1995