LPG-汽油双燃料发动机试验研究

An Investigation of a Gasoline and LPG Dual Fuel Engine

选用澳华液化石油气 (LPG)有限公司生产的汽车用石油气燃料供给装置配于EQ6 10 0 Ⅰ型发动机 ,改装成LPG 汽油双燃料发动机 ,进行性能测试分析。试验结果表明 ,在不改变原机压缩比和点火提前角时 ,燃用液化石油气的动力性下降 ,最大功率为原机的 90 % ;最大扭矩为原机的 92 %。燃用LPG比燃用汽油的当量比油耗低 ,节能率在 5 %左右。怠速排放试验表明 ,燃用LPG的CO、HC排放浓度分别为燃用汽油的 5 0 %和 36 %。

The experimental engine is a dual fuel engine that is a EQ6100-1 engine made by resembling LPG fuel system into it in order to probe some questions relatively. The experimental results show that, compared with gasoline engine, LPG engine has a lower brake power, 90% lower peak power, 92% lower maximum torque and cut specific fuel-consumption by about 5%, carbon monoxide compound by 50%, and carbon hydrogen compound by 36%.