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为了降低车用汽油机的燃料消耗率,作者提出了一种带有特殊结构的新型燃烧室。在燃烧开始之前,利用活塞挤压,着火后利用已燃气体膨胀,在燃烧室内产生强烈的紊流,尤其是其中包括了大量的微涡流,从而使燃烧速度得到了大幅度地提高。在使用国产商用70号汽油时,可以将492Q汽油机的压缩比由7提高到11。使汽油机的最低燃油消耗率降到一般车用高速柴油机的油耗水平。
In order to reduce the fuel consumption rate of a gasoline engine, a new type of combustion chamber with a special structure is proposed. Before the start of combustion, the use of piston squeeze, the use of burned gas after the fire expansion, resulting in strong turbulence in the combustion chamber, in particular, which includes a large number of micro-eddy currents, resulting in a substantial increase in the combustion rate. When using the domestic commercial gasoline 70, 492Q gasoline engine compression ratio can be increased from 7 to 11. So that the minimum fuel consumption of gasoline engine down to the general high-speed automotive fuel consumption level.