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Further Pressure Pulsation Reduction in Fuel Rails
Technical Paper
2003-01-0407
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Fuel rails with integrated damping effect (FRID's), developed for MPI returnless fuel supply system s, effectively reduce fuel pressure pulsations without pulsation dampers (P/D's). One of the remained issues on FRID's is discussed in this paper. Pressure pulsation peak(s) at certain engine speed(s) (P/P engine speed) is significant issue in some cases. Intensive study revealed that the resonance speed is determined by the pressure change period (P /C period) at oil-hammer, induced by an injector open or close. The P/C period control parameters such as the sound speed in a fuel rail were identified, and suggested configurations to shift a P/P engine speed out of the typically used range in engines were established.
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Authors
Citation
Ogata, T., Serizawa, Y., Tsuchiya, H., Hayashi, K. et al., "Further Pressure Pulsation Reduction in Fuel Rails," SAE Technical Paper 2003-01-0407, 2003, https://doi.org/10.4271/2003-01-0407.Also In
References
- Mizuno et. al. 2002 Fuel Rail with Integrated Damping Effect SAE2002 World Congress Detroit, Michigan SAE 2002-01-0853 .