ASTM D6421用试验台法评定汽车火花点火发动机燃料污染电子便携式燃油喷射器的试验方法
日期:2012-02-08 10:48
upset in the air-fuel ratio, which can affect emissions and driveability. When heavy enough, these deposits can lead to driveability symptoms, such as hesitation, hard starting, or loss of power, or a combination thereof, that are easily noticed by the average driver and that lead to customer complaints. The mechanism of the formation of deposits is not completely understood. It is believed to be influenced by many factors, including driving cycle, engine and injector design, and composition of
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