所谓稀燃,顾名思义就是发动机混合气中的汽油含量低,汽油与空气之比可达1:25以上。稀燃技术就是发动机在实际空燃比大于理论空燃比的情况下燃烧。稀燃不仅使燃料能完全燃烧,而且也减少了换气损失,同时降低了汽油机的有害排放物, The so-called lean burn, as the name suggests is that the engine gas mixture of low gasoline content, gasoline and air ratio up to 1:25 or more. Lean burn technology is the engine combustion in the case of the actual air-fuel ratio is greater than the theoretical air-fuel ratio. Lean burn not only allows the fuel to burn completely, but also reduces the loss of ventilation while reducing harmful emissions from gasoline engines,