介绍一例汽油机多气门化改造的结果。由普通二气门ＣＡ１１０２Ｑ汽油机改造为电控、进气道喷射的五气门汽油机，在未提高压缩比的情况下，采用可变进气技术。实验结果表明：小负荷工况降低比油耗２４％ ，怠速排放降低到仅为国标限定值的１０％ ，低速及高速动力性提高１０％ ，并将稀燃工况拓宽到了９０％ 负荷范围，显示了汽油机多气门化改造的潜力。 Introduce the result of a multi-valve retrofit of a gasoline engine. By the ordinary two-valve CA1102Q gasoline engine into electrical control, five-valve intake jet gasoline engine, without increasing the compression ratio, the use of variable intake technology. The experimental results show that the low load condition reduces the fuel consumption by 24%, the idle discharge reduces to only 10% of the national standard, the low speed and high speed dynamic increase by 10%, and the lean burn condition extends to 90% load range, Gasoline multi-valve transformation of the potential.