Reaserch on an Electronic Control System of CNG/Diesel Dual Fuel Engine

Abstract:

In order to convert the high pressure common rail system engine to CNG/Diesel dual fuel engine, an electronically controlled system is developed. The system includes a CNG fuel supply system, the CNG electronic control unit (ECU) and its matching harness etc. During starting and idle load conditions, the engine runs under pure diesel mode, when the speed and load reached a certain set point, the diesel ECU reduces the pilot diesel quantity, meanwhile, the CNG ECU increases the natural gas quantity, then the engine runs under dual fuel mode. The engine experiment data show that in different conditions, the highest substitution rate is 90% and the average substitution rate is 83%; the average savings ratio of operation cost per hour is 26%.

• Periodical: Applied Mechanics and Materials (Volumes 325-326)
• Pages: 1176-1179
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.325-326.1176
• Online since: June 2013
• Authors: Xiao Ning Lv, Jiang Tao Qin, Jing Bo Li, Bo Wen Zou, Fu Qiang Luo
• Keywords: CNG ECU, Dual Fuel, High Pressure Common Rail System Diesel Engine

References

[1] Youtong Zhang, Xinghua Liu, Qing Yang, Xiukun Han, Changqi Cheng: The Studies of an Electronically Controlled CNG System for Dual Fuel Engines. SAE International, (2001).

DOI: 10.4271/2001-01-0145

[2] A Shah, S S Thipse, S D Rairikar, K P Kavthekar, N V Marathe: Literature Review and Simulation of Dual Fuel Diesel-CNG Engine. SAE International, (2011).

DOI: 10.4271/2011-26-0001

[3] Zhiqiang Lin, Wanhua Su and Guoxiang Wang: Research of Ignition Characteristics and Its Influence Factors of Pilot Ignition Natural Gas Diesel Engine. Combustion Science And Technology,(2003).

[4] ACKNOWLEDGEMENT: A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions