Stefan Heitzig
Institute for Fluid Power Drives and Controls (IFAS), RWTH Aachen University, Aachen, Germany
S. Drumm
Institute for Fluid Power Drives and Controls (IFAS), RWTH Aachen University, Aachen, Germany
Hubertus Murrenhoff
Institute for Fluid Power Drives and Controls (IFAS), RWTH Aachen University, Aachen, Germany
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http://dx.doi.org/10.3384/ecp1392a43Published in: 13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden
Linköping Electronic Conference Proceedings 92:43, p. 437-446
Published: 2013-09-09
ISBN: 978-91-7519-572-8
ISSN: 1650-3686 (print), 1650-3740 (online)
In the scope of the cluster of excellence "Tailor-Made Fuels from Biomass" new biofuels are developed within an interdisciplinary research approach at RWTH Aachen University. The most promising fuel candidates so far tend to have a low viscosity and a low lubricity compared to diesel fuel. It is the task of the authors to develop a guideline for designing injection systems that are especially adapted to these fuels. The main focus is on high pressure pump within common rail systems. In this paper; the effects of those fuel candidates on the tribological contacts in standard common rail pumps are investigated by means of experiments and simulations. On the experimental side a test rig is presented; which allows the measurement of the transversal force on a piston and the friction force; which occur in the piston/bushing- contact. On the simulation side; elastohydrodynamic simulation models of several tribological contacts within the standard pump are presented. Results of simulation and measurement are presented
Elastohydrodynamic simulation; friction forces; tribological contacts; common rail pump; fuels; journal bearings
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