Reliability of Ceramic Valve Plates for Common-Rail Injection Pumps

  1. Prof. Dr. G. Müller
  1. R. Speicher1,
  2. G. A. Schneider2,
  3. W. Dreßler3,
  4. G. Lindemann3,
  5. H. Böder3 and
  6. V. Knoblauch1

Published Online: 27 APR 2006

DOI: 10.1002/3527607293.ch56

Ceramics - Processing, Reliability, Tribology and Wear, Volume 12

Ceramics - Processing, Reliability, Tribology and Wear, Volume 12

How to Cite

Speicher, R., Schneider, G. A., Dreßler, W., Lindemann, G., Böder, H. and Knoblauch, V. (2000) Reliability of Ceramic Valve Plates for Common-Rail Injection Pumps, in Ceramics - Processing, Reliability, Tribology and Wear, Volume 12 (ed G. Müller), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527607293.ch56

Editor Information

  1. Fraunhofer-Institut für Silicatforschung, Neunerplatz 2, 97082 Würzburg, Germany

Author Information

  1. 1

    Robert Bosch GmbH, Technical University Hamburg-Harburg/Advanced Ceramics Group, Germany

  2. 2

    Technical University Hamburg-Harburg/Advanced Ceramics Group, Germany

  3. 3

    Robert Bosch GmbH, Stuttgart, Germany

Publication History

  1. Published Online: 27 APR 2006
  2. Published Print: 27 JUN 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301942

Online ISBN: 9783527607297

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Keywords:

  • ceramic valve plates;
  • reliability;
  • common-rail injection pumps

Summary

In this paper, the dimensioning of ceramic components is demonstrated for a valve plate of Si3N4 which is used in high-pressure pumps for Common-Rail injection systems. Finite Elements (FE) calculations prior to lifetime considerations are done in order to investigate the stress states during cyclic loading. For calculations of failure probabilities and lifetimes the FE-post processor STAU [1] is used. 4-point-bending strengths as well as results from valve plate tests are presented. Static and cyclic subcritical crack growth parameters are investigated in bending techniques as well. Three different material suppliers of commercial Si3N4 are investigated.