柴油机加载低温冷起动特性研究

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中图分类号：U469.9 收稿日期：2026-01-10 DOI：10.19999/j.cnki.1004-0226.2026.02.015

Research on Cold Start Characteristics of Diesel Engines under Low Temperature and Loading Force

Liu Dianyun Li Shifeng Luo Fei Dong Wenlong Zhu Tinghui CATARC Automotive Test Center（Kunming）Co.，Ltd.，Kunming 651701，Chin：

Abstract：Thisstudyaddresss thechallengeofdieselenginecoldstartunderlowtemperatureconditionswithloading.Byconstructingahydraulicloadingdeviceandanenvironmentalchambertosimulatethelowtemperatureloadingandcoldstartconditionsof dieselengines，asystematic testwasconductedonthecoldstartcharacteristicsunderloadingconditionsranging from80to 210N⋅m and-35to 0qC .Theresearch results indicate thatunder the same loading force，as the temperaturedecreases，ubricatingoilviscosity increasesaisueotoaiteoatltdart tiplencreaseTestarttieofthdieseleginicreaseswithteincreasfladingforce，utfordieselegiesinspecificevion mentaltemperatures，thereislimitloadingfoce.Ifteloadingforceexcedstislmit，theenginewillfailtostartTisproidesa theoreticalbasisfortheselectionofdieselpowersystemsforconstructionmachinerywithhydraulicloadingstartincoldregions.

KeyWords：Diesel engine;Cold start;Low temperature;Loading force

1前言

柴油机作为工业装备的主要动力源之一，因其可靠性高和动力输出稳定，广泛应用于各种特殊环境下的工程机械中，这就对其在低温环境下的加载（工程机械液压系统）起动提出了新的要求。（剩余4023字）