Typical performance behavior of a Diesel cycle agricultural tractor engine with electronic injection management and turbocharger

ABSTRACT: Over the past few years, changes have been observed in the behavior of typical performance curves, after higher technology has been incorporated into the agricultural tractor engines, either to satisfy the ceiling of the new pollutant gas emission limits or to achieve better efficiency. The aim of this study was to assess the typical performance behavior of an agricultural tractor engine, possessing electronic injection management, turbocharger, aftercooler and EGR (Exhaust Gas Recirculation) treatment system. An analysis was done of the information the manufacturers provided, in terms of nominal power, maximum power and maximum power with Booster, maximum torque and maximum torque with Booster. From the results, the percentage difference between the nominal power and maximum power were found to hover anywhere from 1.49 to 11.97%, for the same manufacturer, 0% in another manufacturer and 9% in a third manufacturer, for all the models. Similar results were noted for the data reported on the maximum torque and maximum torque with Booster, giving 0.62% as the minimum value, 7.44% as the average value and 12.65% as the maximum value for the entire series.

摘要：近年来，为满足新型污染物气体排放限值的上限要求或提升能效，农用拖拉机发动机搭载了更高规格的技术，其典型性能曲线的表现特征随之发生变化。本研究旨在评估搭载电子喷射管理系统、涡轮增压器、中冷器以及排气再循环（Exhaust Gas Recirculation）处理系统的农用拖拉机发动机的典型性能表现。研究人员针对厂商提供的相关参数展开分析，涵盖额定功率、最大功率、带增压装置的最大功率、最大扭矩以及带增压装置的最大扭矩。经分析发现，针对所有机型，同一厂商的额定功率与最大功率的百分比差值介于1.49%至11.97%之间，另有一家厂商的差值为0%，还有一家厂商的差值为9%。针对最大扭矩与带增压装置的最大扭矩的相关数据，研究得到了相似的结果：全系列数据的最小差值为0.62%，平均差值为7.44%，最大差值为12.65%。