An Analysis of Induction Port Fuel Behavior

Paper #:
  • 912348

Published:
  • 1991-10-01
Citation:
Iwano, H., Jaitoh, M., Sawamoto, K., and Nagaishi, H., "An Analysis of Induction Port Fuel Behavior," SAE Technical Paper 912348, 1991, https://doi.org/10.4271/912348.
Pages:
12
Abstract:
Since the fuel supply specifications in a multi-point injection (MPI) system are usually determined experimentaly, the way fuel behaves in the induction port is still not clearly understood. In this study, a fuel behavior model is developed to gain a better understanding of how fuel behaves in the induction port so that the best fuel supply specifications can be determined on the basis of analysis. This paper outlines a model of fuel spray and wall film and presents some typical calculation results. Taking into account fuel properties, the vapor, the flow and other characteristics of fuel in the induction port are calculated using these models.A comparison of the calculated results with experimental data confirms the validity of the model. The calculated results show the effects of the fuel propeties and fuel supply system specifications on induction port fuel behavior.
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