This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Nozzle Diameter Prediction for Optimal Combustion in Direct Injected Engines
Annotation ability available
Sector:
Language:
English
Abstract
An experimental expression was proposed as effective means for determining the optimal nozzle diameter. To obtain the expression, the cylinder pressure was measured and recorded in a combustion analyzer. The pressure data of 80 cycles were averaged. The fuel line pressure sensor was mounted in the inlet nozzle holder, and the needle lift was sensed by the variation of inductive current. The proposed expression based on experimental data was used for determining the nozzle diameter in direct injected engines. The validity of the proposed expression was identified with the experimental data from five different diesel engines. The results showed that the values from the expression agreed with the actual nozzle specification at medium and high engine speed. The nozzle diameter in diesel engines as a function of power and specific fuel consumption could be predicted. Also, the injection duration could be found as a terms of power, specific fuel consumption, and determined nozzle diameter.
Recommended Content
Topic
Citation
Kwon, S. and Choi, G., "Nozzle Diameter Prediction for Optimal Combustion in Direct Injected Engines," SAE Technical Paper 951802, 1995, https://doi.org/10.4271/951802.Also In
References
- Sitkei G. “Fuel injection and Combustion in Diesel Engine” Asakurashoten 26 31 1966
- Xu M. “A Study of Injection and Spray Characteristics in a Diesel Engine” University. of Hiroshima 1991
- Yokoda M. Kawamura Y. “Flow Characteristics of Fuel Injection Nozzles for Diesel Engine - Flow Coefficients of Small Round Orifices” Journal of the Marine Engineering Society of Japan 18 8 22 30 1983
- Kwon S.I. Kim W. “Effect of the Fuel Injection System on Combustion in a Diesel Engine’ Journal of Automotive Engineering 15 1 37 44 1993
- Lee S.Y. “The Theory of Error” Dongmyung Publication 15 91 1982