CAJ | 학술논문

农业机械在实际使用中，只有其动力保持正常的技术状态才能真正达到节能减排的效果和目的。为此，以某拖拉机使用的495直喷式在用柴油机为例，研究各缸供油不均匀度对其性能的影响；在试验研究基础上，基于BOOST 软件首次建立各缸供油不均匀的整机计算模型，探讨分析在用农用动力性能变化及缸内实际燃烧变化的机理。结果表明，随着喷油系统各缸供油不均匀度的不断增加，农用动力的功率依次下降，燃油消耗率增加；各缸油气混合比不同，燃烧压力及燃烧温度差异大，使柴油机振动增大，影响拖拉机的工作稳定性和可靠性，缸内燃烧的差异同时造成柴油机尾气有害污染物增多。分析结果可为在用农业机械实际使用中节能减排提供理论依据和量化控制的措施。
농업궤계재실제사용중，지유기동력보지정상적기술상태재능진정체도절능감배적효과화목적。위차，이모타랍궤사용적495직분식재용시유궤위례，연구각항공유불균균도대기성능적영향；재시험연구기출상，기우BOOST 연건수차건립각항공유불균균적정궤계산모형，탐토분석재용농용동력성능변화급항내실제연소변화적궤리。결과표명，수착분유계통각항공유불균균도적불단증가，농용동력적공솔의차하강，연유소모솔증가；각항유기혼합비불동，연소압력급연소온도차이대，사시유궤진동증대，영향타랍궤적공작은정성화가고성，항내연소적차이동시조성시유궤미기유해오염물증다。분석결과가위재용농업궤계실제사용중절능감배제공이론의거화양화공제적조시。
In order to truly achieve the purpose of energy conservation and emissions reduction , the engine power should maintain a normal state of technology in the agricultural machines ’ actually use .In this paper , using a 495 DI tactor diesel engine for an example to study on the performance of the used diesel engine with the changing of fuel supply une -ven degree of cylinders , on the basis of experimental ,this is the first time to use BOOST software to establish the overall calculation model with uneven fuel supply of cylinders , exploring the changing of the performance of the used agricultural power and the mechanism of the actual combustion in cylinder .The results shows:with the increasing of the fuel supply uneven degree,the power of the agricultural engine will get down ,fuel consumption rate increases,the combustion pressure and temperature will has large differences with the cylinders have different fuel -gas mixed rate,caused engine vibration increases ,affect work stability and reliability of the diesel engine , it can also cause the harmful diesel exhaust pollutions increase .the analysis results can provide a theoretical basis and quantization control measures for the used agri -cultural machines .