LPG/Gasoline Dual-Fuel Engine Design and Investigation about its Performance

Abstract:

In order to burning LPG and gasoline and dual fueled (LPG and gasoline) in the same engine, a new multi-function engine was refitted and designed based on 188F gasoline, mutative effects on the power and emission performance when burning those three kind fuel were investigated by the engine operated with the US EPA Phase-Ⅱ. Three schemes for the carburetor throat were designed. Balanced of the power and economy performance, when the diameter of the carburetor throat is 23mm, the performance was the best. By carrying engine performance test and the combustion process analysis, the results showed that: when the throttle was full opened, the power of burning only gasoline was 7.97kW, 0.5 kW and 0.28kW higher than burning LPG and dual –fuel. Burning gasoline pressure curve with the crank Angle siege area is the largest. As the emission test shows, when separately burning LPG and gasoline and dual fueled, the tendency of the excess air coefficient and the emission characteristics with the load change are same. When using LPG and dual-fuel, compared with burning gasoline, HC and NOx emission were reduced.

• Periodical: Applied Mechanics and Materials (Volumes 333-335)
• Pages: 2025-2029
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.333-335.2025
• Online since: July 2013
• Authors: Wei Liu, Sheng Ji Liu, Xin Kuang, Jian Sun
• Keywords: Dual-Fuel, Emission, Gasoline, Indicator Diagram, LPG

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