This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
An Alternative to the Conventional Natural Gas Conversion Kit for Vehicles: Computer Controlled Upstream Injection
Annotation ability available
Sector:
Language:
English
Abstract
This report is part of a research program carried out at Ecole Polytechnique de Montreal and aimed at the use of natural gas in automobiles.
A computer simulation, modeling the behavior of the conventional equipment (conversion kit) used to convert a gasoline engine to natural gas, was carried out under varying temperature and storage pressure conditions. The results of this study clearly indicated the need for an approach which would compensate for the variations of densities of both air and fuel. The design of an electronically controlled injection system with enough flexibility to allow its use on most engines with only minor modifications was thus undertaken. The ultimate goal of this research is to operate the engine with a closed loop fully auto-adaptative system but the first step in the design was limited to an open loop semi-empirical system that has shown good preliminary test results. The results obtained by simulation of the conventional conversion kit and with the open loop injection system are reported in this paper.
Authors
Topic
Citation
Perrault, M., Allard, G., Gou, M., and Guernier, C., "An Alternative to the Conventional Natural Gas Conversion Kit for Vehicles: Computer Controlled Upstream Injection," SAE Technical Paper 881659, 1988, https://doi.org/10.4271/881659.Also In
References
- Allard G. “Projet d'un système d'injection électronique pour un moteur monocylindre à allumage commandé fonctionnant au gaz naturel” Universitéde Montréal 1986
- Baets J.E. “Combustion of Natural Gas and Gasoline in a Spark-Ignited Engine” Université de Colombie Britanique AFL-82-02 1982
- Borne G.J. “The Alternate Fuelled Automobile (NG and Gasoline)” January 1982
- Carter S.A. “New Under-the Hood CNG Fuel System or GEN II” Virginie (Arlington), Non Petroleum Vehicular Fuels V: CNG Fuels 1985
- Evans R.L. “A Preliminary Assessment of the Performance of a Ricardo Hydra Engine Fuelled With Gasoline and Natural Gas” Université de Colombie Britanique AFL-83-03 1983
- Evans R.L, et al. “The Performance of a Spark-Ignition Engine Fuelled with Natural Gasand Gasoline” SAE No. 840234 1984
- Flemming R.D. Allsup J.R. “Emission Characteristics of Natural Gas as an Automobile Fuel” SAE 710833 1971
- Gou M. et al. “Simulation et analyse du comporterment d'un systeme de carburation pneumatique pour véhicule au gaz naturel sous différentes conditions de temperature et de pression” Ecole Polytechnique de Montréal EPM/RT-86-2 1986
- Gou M. et al. “Etude experimentale du comporterment d'un moteur Ricardo fonctionnant au gaz naturel, première partie - essais gaz naturel” Ecole Polytechnique de Montréal EPM/RT-86-3 1986
- Gou M. et al. “Etude expérimentale comparative du comportement d'un moteur Ricardo fonctionnant au gaz naturel et a l'essence” Ecole Polytechnique de Montréal EPM/RT-86-4 1986
- Gou M. Perrault M. “L'utilisation du gaz naturel dans le transport” Comptes rendus du 15° Colloque Augustin-Frigon 1985
- Guernier C. Baudry P. “Natural Gas for Vehicules (NGV) Technical Seminar” Quebec (Mont Gabriel) 1985
- Karim G.A. Ali I.A. “The Effects of Low Ambient Temperatures on the Combustion of Natural Gas in a Single Cylinder Spark Ignition Engine” SAE No. 730084 1984
- Perrault M. “Etude de la carburation dans un moteur à allumage commandé alimenté au gaz naturel” l'Ecole Polytechnique de 1'université de Montréal 1986
- Perry C. al. “A Review of Performance of Natural Gas Fuelled Otto Cycle Engines” Université de Colombie Britanique AFL-82-05 1985
- Taylor C.F. “The Internal Combustion Engine in Theory and Practice” Massachusetts 2 The MIT Press 1985 2
- Troesh E.R. “An Investigation of Venturi Type Air-Fuel Mixers for Gaseous Fuelled Engines” Université de Colombie Britanique AFL-83-02 1983