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高压共轨多次喷射油量波动现象分析 被引量:7

Analysis on Multiple-Injection Fuel Quantity Fluctuation for High Pressure Common Rail System
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摘要 采用实验测量与数值模拟研究相结合的方法,研究了共轨燃油喷射系统动力学的基本原理,重点关注多次喷射过程中,水击现象造成的随间歇时间变化的喷射油量波动现象.利用AMES im软件建立的高压共轨燃油系统模型进行仿真,分析了多次喷射过程中,水击压力波动影响下的喷油器控制腔、蓄压腔液力过程和控制球阀、针阀运动规律.结果表明,高压共轨多次喷射油量波动是由于水击压力波动对针阀运动特性和喷射压力产生的周期性综合影响造成的. By an integrated numerical-experimental approach, fundamental aspects of CR system dynamics were investigated, paying specific attention to the multi-injection fuel quality fluctuation induced by water hammer with dwell time (DT). The model of high pressure common rail injection system model was built based on AMESim package and the simulation was implemented using the data of experimental injection rate. The hydraulic process of control chamber and delivery chamber, as well as the lift process of pilot and needle valve were simulated and analyzed under the impact of water hammer wave. It is summarized that the multi injection fuel quantity fluctuation is caused by synthetic cyclical factors of needle opening and closure delays, and injection pressure due to the impulse of water hammer.
出处 《北京理工大学学报》 EI CAS CSCD 北大核心 2011年第7期795-798,共4页 Transactions of Beijing Institute of Technology
基金 国家自然科学基金资助项目(51076014) 河北省教育厅科研计划资助项目(Z2009465)
关键词 多次喷射 油量波动 喷油器特性 喷射压力 multiple injection fuel quantity fluctuation injector characteristics injection pressure
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参考文献8

  • 1Mikio Kumano, Kenzo Yano, Kanehito Nakamura, et al. Advanced electronics for a clean diesel engine management system, SAE paper 2006-21-0059[R]. IS. 1. ] : SAE, 2006.
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二级参考文献10

  • 1Hitoshi Tomishima, Takeo Matsumoto, Mamoru Oki, et al. The advanced diesel common rail system for achieving a good balance between ecology and economy [C]. SAE Paper 2008 -28-0017, 2008.
  • 2Catania A E, Ferrari A, Spessa E. Temperature variations in the simulation of high-pressure injection-system transient flows under cavitation [J]. Int. J. Heat Mass Transfer, 2008, 51(7-8): 2090-2 107.
  • 3Marco Coppo, Claudio Dongiovanni, Claudio Negri. Numerical analysis and experimental investigation of a common rail-type diesel injector [J]. ASME Journal of Engineering for Gas Turbines and Power, 2004, 126(4) :874-885.
  • 4Mirko Baratta, Andrea Emilio Catania, Alessandro Ferrari. Hydraulic circuit design rules to remove the dependence of the injected fuel amount on dwell time in muhijet CR systems[J]. ASME Journal of Fluids Engineering, 2008, 130(12) :121- 104.
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  • 8丁晓亮,张幽彤,熊庆辉.压电式高压共轨喷油系统喷油量波动特性试验[J].农业机械学报,2010,41(7):11-14. 被引量:11
  • 9杨洪敏,苏万华,汪洋,李绍安.高压共轨式喷油器的无量纲几何参数对喷油规律和喷油特性一致性影响的研究[J].内燃机学报,2000,18(3):244-249. 被引量:33
  • 10何志霞,李德桃,胡林峰,袁建平,王谦,唐维新.柴油机高压共轨喷油系统内的瞬变流动研究[J].农业机械学报,2004,35(1):48-51. 被引量:10

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