This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Analysis of Mixture Formation Process in a PFI Motorcycle Engine
Technical Paper
2015-32-0767
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
PFI (Port Fuel Injection) gasoline engines for motorcycles have some problems such as slow transient response because of wall wet of fuel caused by the injector's layout. Hence, it is important to understand the characteristics of fuel sprays such as droplet size and distribution of fuel concentration. Considering the spray formation in a port, there are three kinds of the essential elements: breakup, evaporation and wall impingement. However, it is difficult to observe three of them at the same time. Therefore, the authors have made research step by step.
In the authors' previous study, the authors focused on the wall collision, droplet sizes, droplet speeds and the space distribution of the droplets. In this study, the authors focused on evaporation. A direct sampling method using FID (Flame Ionization Detector) for evaporating fuel was established and the concentration distribution of evaporating fuel in the port was measured and analyzed. As a result, it was found that higher velocity in the port increases fuel concentration with enhanced atomization and that evaporating fuel is easier to be affected by the flow and fuel distillation characteristics.
Recommended Content
Technical Paper | Multiple Injection in a Mixed Mode GDI Boosted Engine |
Technical Paper | Advantages of Lead in Gasolines for European Cars - The Lead Road Bonus |
Technical Paper | the economics of
|
Authors
Citation
Moriyoshi, Y., Kuboyama, T., Goto, H., and Iida, M., "Analysis of Mixture Formation Process in a PFI Motorcycle Engine," SAE Technical Paper 2015-32-0767, 2015, https://doi.org/10.4271/2015-32-0767.Also In
References
- Arcoumanis C. , Whitelaw D.S. , Whitelaw J.H. Gasoline Injection Against Surfaces and Films Atomization and Sprays 7 1977 437
- Yumoto M. , Goto K. , Kato S. , Iida M. Influence of Injection and Flame Propagation on Combustion in Motorcycle Engine -Investigation by Visualization Technique SAE Paper No. 2011-32-0566 2011
- Moriyoshi , Y. and Iida , M. Analysis of Port Injected Fuel Spray Under Cross Wind Using 2-D Measurement Techniques SAE Int. J. Fuels Lubr. 3 2 1081 1092 2010 10.4271/2010-32-0064
- Kawaguchi K. , Maeda K. , Hu X. , Moriyoshi Y. Application of Improved Interferometric Laser Imaging Droplet Sizing (ILIDS) System to Hollow-Cone Spray 2001 Proc. of COMODIA 646
- http://www.ricardo.com/en-GB/What-we-do/Software/Products/VECTIS/
- Bai C. , Gosman A.D. Development of Methodology for Spray Impingement Simulation SAE Paper No. 950283 1995
- Takagi M. , Moriyoshi Y. Modelling of a Hollow-Cone Spray at Different Ambient Pressures International Journal of Engine Research 5 1 39 52 2004