Study on PEMS test emission characteristics of different fuel injection nozzles
In view of the problem of dump truck fuel injector selection,the portable vehicle emission test system(PEMS)equipment was sampled,the actual road driving measurement method(PEMS)test was carried out on the two fuel injectors A and B,and the harsh working conditions(low load,long test duration test)were selected,and the overall test results,instantaneous emission results,specific emissions and emission factor results of the two PEMS tests(cold start stage,urban area,suburban and high-speed stage)were compared and analyzed.Finally,it was confirmed that the emission effect of fuel injector B on the actual road was better than that of fuel injector A.
tip truckfuel injection nozzleslow loadactual road emissions
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