The Electronically Controlled Gas Dual Fuel Engine

With worldwide volume engine maintain rapid growth, research and development of new "clean" cars, diesel fuel alternative for the protection of the environment and the survival of mankind has not ignore the role of energy conservation. Flammability gases such as liquefied petroleum gas (LPG) , natural gas, hydrogen, coal, gas, etc. are considered clean, rich and realistic alternative motor fuel.In this study and compare the various characteristics of the fuel gas combustion basis for the gas fuel characteristics, made to LPG as a clean alternative fuel, hydrogen (H₂) as LPG engines add fuel portfolio composition LPG+H2 fuel programme.Of the existing LPG engine technologies through research, combining the characteristics of gas, using electrical jet, spark plug ignition, completed laboratory LPG+ H₂ gaseous jet fuel supply system design. Electrical system in a single original LPG fuel engine improvement on the basis of using the Central control, control module (ECU) AT89C52 at the core, and the redesign of the capacitance discharge type ignition devices achieved through the replacement of ignition energy capacitance change.At the conclusion of 170F-gas hybrid engine fuel supply systems design and electrical system improvements basis, the completion of the initial combustion engine with gaseous fuel mix LPG+H₂ pilot study of gas in three different H₂ content of A/F ratio, ignition time, ignition energy, the engine power and the impact of emissions. Test results show that: Compared with LPG fuel alone, the use of hydrogen as a motor fuel gas mixture, the engine more stable, dynamic and have varying degrees of sexual improve emissions, but NOx emissions increase.