低溫環(huán)境下噴油參數(shù)對(duì)柴油機(jī)燃燒和排放的影響

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中圖分類號(hào)：TK421 文獻(xiàn)標(biāo)識(shí)碼：A DOI：10.7535/hbkd.2025yx04001

Influence of fuel injection parameters on combustion and emissions of diesel engine under low temperature environment

ZHU Hairong1，GUO Xuefang1，DI Zhipeng1，WANG Zhao （1.Schoolof Mechanical Engineering，Hebei Universityof Scienceand Technology，Shjiazhuang，Hebei O5oo18，China; 2.Hebei Tuopu Machinery Electric Company Limited，Shijiazhuang，Hebei O5ool8，China）

Abstract：Inordertostudytheimpactof diferentinjection parameters （numberof injectionholes，injectionangle，injection advanceangle）onthe in-cylindercombustionandemision performanceof diesel engineunderlow temperature environment，a thre-dimensional modelofacertaintypeof direct-injection diesel enginewas established，andcombustionsimulation was carriedoutfordiferentinjectionparametersofdieselengineunderlowtemperatureenvironment.Theresultsshowthatthe fuelinjectionparameters influencethefuelinjectionduration，thefuelspatialdistribution，theswirlinthepitatthebottomof the combustion chamber，the penetration distance and difusionangleof the fuel spray，the fuel-air mixing timeand mixing efect，whichwillafectthecombustionandemisionperformanceof thedieselengine；Thedieselenginecanobtainthebest power performance under low temperature environment when the numberof injection holes is 8，theinjection angle is 150° ，and the injection advance angle is 18°CA BTDC（before top dead center）. The mechanism of the influence of injection parameters ondieselenginecombustionandemission underlowtemperatureenvironmenthasbeenobtained，which providessome reference for the optimization of diesel engine injection parameters under low temperature environment.

Keywords：internal combustion engineengineering；diesel engine；fuel injectionparameters；combustion simulation；low temperatureenvironment

柴油發(fā)動(dòng)機(jī)具有扭矩大、熱效率高、輸出功率大、運(yùn)行可靠性高和燃料安全性好等優(yōu)勢(shì)，廣泛應(yīng)用于車輛、船舶動(dòng)力、航空航天、農(nóng)業(yè)機(jī)械、國(guó)防裝備等諸多領(lǐng)域[1]。（剩余15401字）