Skip to main content
SpringerLink
Log in

Computation of pressure fluctuation frequency in electronic unit pump for diesel engine

  • Published:
Journal of Mechanical Science and Technology Aims and scope Submit manuscript

Abstract

Pressure variations inside a fuel injection system can lead to fluctuations in injected fuel quantity during injections and therefore can directly impact the stability and performance coherence of the fuel injection system and the engine it matched. Concepts of hydraulic capacitance and hydraulic inductance are introduced into fuel injection system by referencing LC oscillator electric circuit. A LC undamped hydraulic mathematical model is developed based on the structural parameters of the electronic unit pump (EUP). Pressure fluctuation frequency during injection process at different operating conditions of the EUP is computed by the LC undamped model. It is observed that the frequencies of pressure fluctuations tend to increase with the fuel injection process. Pressure curves and pressure fluctuation frequencies obtained by experiments at different operating conditions validated the results predicted by the LC undamped mathematical model.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. M. Oki, S. Matsumoto and Y. Toyoshima, 180MPa piezo common rail system, SAE Paper, 2006-01-0274 (2006).

    Google Scholar 

  2. P. Roels, Y. Sledsens, S. Verhelst, R. Sierens and L. Vervaeke, Reducing engine-out emissions for medium high speed diesel engines: influence of injection parameters, SAE Paper, 2009-01-1437 (2009).

    Google Scholar 

  3. K. Poorghasemi, F. Ommi, H. Yaghmaei and A. Namaki, An investigation on effect of high pressure post injection on soot and NO emissions in a DI diesel engine, Journal of Mechanical Science and Technology, 26(1) (2012) 269–281.

    Article  Google Scholar 

  4. G. Chiatti and O. Chiavola, Modelling high pressure injection system and its effect on engine performance, SAE Paper, 2003-01-1852 (2003).

    Google Scholar 

  5. F. Payri, R. Payri, F. J. Salvador and J. Gimeno, Comparison between different hole to hole measurement techniques in a diesel injection nozzle, SAE Paper, 2005-01-2094 (2005).

    Google Scholar 

  6. H. F. Su, Y. T. Zhang, X. Luo and X. L. Ding, Experimental investigation on water hammer pressure wave in high pressure common rail system, Transactions of CSICE, 29(2) (2011) 163–168.

    Google Scholar 

  7. X. Wang and W. H. Su, Analysis on pressure fluctuation and unsteady cavitation inside high-pressure diesel injection nozzles, Transactions of CSICE, 28(3) (2010) 193–198.

    Google Scholar 

  8. X. L. Liu, W. H. Su and Q. Zhan, Numerical study of ef fects of delivery pipe on performance of common rail system, Chinese Internal Combustion Engine Engineering, 31(5) (2010) 47–51 & 57.

    Google Scholar 

  9. H. Tsunemoto, R. M. Montajir, H. Ishitani and T. Hayashi, The influence of pressure in nozzle sac and needle lift on fuel spray behavior and HC emissions in DI diesel engines, SAE Paper, 1999-01-3491 (1999).

    Google Scholar 

  10. K. Ramamurthi and S. R. Patnaik, Influence of periodic Disturbances on inception of cavitation in sharp-edged orifices, Experiments in Fluends, 33(5) (2002) 720–727.

    Article  Google Scholar 

  11. X. Wang and W. H. Su, Influence of injection pressure fluctuations on cavitation inside a nozzle hole at diesel engine conditions, SAE Paper, 2008-01-0935 (2008).

    Google Scholar 

  12. M. Kumano, K. Yano, K. Nakamura and H. Uono, Advanced electronics for a clean diesel engine management system, SAE Paper, 2006-21-0059 (2006).

    Google Scholar 

  13. A. Mulemane, J. S. Han, P. H. Lu, S. J. Yoon and M. C. Lai, Modeling dynamic behavior of diesel fuel injection systems, SAE Paper, 2004-01-0536 (2004).

    Google Scholar 

  14. A. Ghurri, J. D. Kim, K. K. Song, J. Y. Jung and H. G. Kim, The effect of injection pressure and fuel viscosity on the spray characteristics of biodiesel blends injected into an atmospheric chamber, Journal of Mechanical Science and Technology, 26(9) (2012) 2941–2947.

    Article  Google Scholar 

  15. L. Y. Fan, B. Q. Tian and X. Z. Ma, Key parameters investigation on small cycle fuel injection quantity for a diesel engine electronic unit pump system, World Electric Vehicle Journal, 4(1) (2011) 603–609.

    Google Scholar 

  16. L. Y. Fan, W. Q. Long, Y. X. Zhu and Y. Y. Xue, A characteristic study of electronic in-line pump system for diesel engines, SAE Paper, 2008-01-0943 (2008).

    Google Scholar 

  17. C. Yao, L. Y. Fan, Q. Dong, E. Z. Song and B. Q. Tian, Correlation analysis of factors influencing the electronic unit pump cycle fuel injection quantity under overall operating conditions for diesel engines, Journal of Mechanical Science and Technology, 26(9) (2012) 2929–2939.

    Article  Google Scholar 

  18. L. Y. Fan, Y. X. Zhu, X. Z. Ma, B. Q. Tian, E. Z. Song and W. H. Li, Quantitative analysis on cycle fuel injection quantity fluctuation of diesel engine electronic in-line pump system, SAE Paper, 2010-01-0875 (2010).

    Google Scholar 

  19. C. L. Zhao, J. W. Tan, F. J. Zhang, Y. Huang and B. L. Liu, Research on injection system of electronic unit pump diesel, Neiranji Gongcheng, 25(2) (2004) 79–83.

    Google Scholar 

  20. X. J. Mao, W. Y. Xiao, M. L. Xun and B. Zhuo, Research on upraising the pressure in a pump-line-injector fuel supply system, Neiranji Gongcheng, 22(3) (2001) 27–31.

    Google Scholar 

  21. A. E. Catania, A. Ferrari, M. Manno and E. Spessa, Experimental investigation of dynamics effects on multipleinjection common rail system performance, Journal of Engineering for Gas Turbines and Power, 130(032806) (2008) 1–13.

    Google Scholar 

  22. T. Qiu, X. H. Liu, F. S. Liu and L. Yu, The study for cam profile design of EUP, Transactions of CSICE, 26(5) (2008) 476–479.

    Google Scholar 

  23. Z. Y. Gao, Determination of the propagation velocity of the pressure wave in diesel injection system, Neiranji Gongcheng, 1 (1983) 25–32.

    Google Scholar 

  24. P. Lino, B. Maione and A. Rizzo, Nonlinear modelling and control of a common rail injection system for diesel engines, Applied Mathematical Modelling, 31 (2007) 1770–1784.

    Article  Google Scholar 

  25. B. D. Nikolic, B. Kegl, S. D. Markovic and M. S. Mitrovic, Determining the speed of sound, density and bulk modulus of rapeseed oil, biodiesel and diesel fuel, Thermal Science, 16(2) (2012) S569–S579.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, China

    Tian Bingqi, Fan Liyun, Qaisar Hayat, Ma Xiuzhen, Song Enzhe & Hao Wang

Authors
  1. Tian Bingqi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Fan Liyun
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Qaisar Hayat
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Ma Xiuzhen
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Song Enzhe
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Hao Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Fan Liyun.

Additional information

Recommended by Associate Editor Kyoung Doug Min

Tian Bingqi received his B.S. degree in Thermal Energy and Power Engineering and M.S. degree in Power Machinery and Engineering from Harbin Engineering University, China, in 2007 and 2011, respectively. Mr. Tian is currently a Ph.D. student at Institute of Marine Engine Electronic Control Technology in the College of Power and Energy Engineering, Harbin Engineering University, China. His research interests include electronic control, fuel injection system modeling, simulation and optimization of marine diesel engine.

Fan Liyun received his B.S. degree in Power and Energy Engineering in 2003 and Ph.D. degree in Power Machinery and Engineering in 2008 from Dalian University of Technology, China. Mr. Fan is current an associate professor of power machinery and engineering in the College of Power and Energy Engineering, Harbin Engineering University, China. His research interests include electronically controlled fuel injection technology of advanced diesel engines and modeling and simulation of diesel engine power plants.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Bingqi, T., Liyun, F., Hayat, Q. et al. Computation of pressure fluctuation frequency in electronic unit pump for diesel engine. J Mech Sci Technol 28, 1529–1537 (2014). https://doi.org/10.1007/s12206-014-0304-3

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12206-014-0304-3

Keywords

Search

Navigation