循环变动

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  • Cyclic variation;cyclical fluctuations
循环变动循环变动
  1. 全负荷特性和全负荷速度特性工况时,pz、φA和φB的循环变动都有各自的规律。

    The variations of p z , φ A ,φ B have their own regular patterns on the load characteristics and full load performance .

  2. 提高滚流比可使循环变动降低,最终显著提高了废气容忍度,拓展了EGR的稀释极限。

    Increasing the tumble ratio can lower cycle by cycle coefficient of variation , thus the EGR ratio limit extended .

  3. 关于发动机循环变动Kantor模型的讨论

    Discussion on Kantor Model for Cyclic Variation in Spark-ignition Engines

  4. 本文主要研究采用低旋流进气、浅W型燃烧系统的SD2100直喷柴油机的循环变动。

    The characteristics of operating cyclic variations for low swirl shallow W type combustion system on SD2100 diesel engine are tested and measured .

  5. 本文利用三维燃烧模型对CNG发动机的燃烧过程进行数值模拟,研究过量空气系数的循环变动对CNG发动机火核形成和发展及燃烧各阶段的影响。

    In this paper , three-dimension models have been used to simulate the combustion processes in CNG engine , in order to study the effects of cyclic equivalence ratio variations on flame kernel formation and development .

  6. 传统进气总管EGR的最大EGR率受到燃烧循环变动的限制,在大EGR率下,油耗上升,严重时会导致CO和HC排放大量增加。

    The conventional EGR directly entering intake manifold is limited by cycle-by-cycle variation and further decreasing NOx emission , if large ratio of EGR leads to engine , which will increase fuel consumption and CO and HC emissions .

  7. 分层EGR可以减少缸内燃烧的循环变动,增加EGR率,在进一步降低NOX排放的同时,可以减小部分负荷下的泵吸损失,提高燃油利用率。

    However , the stratified EGR with decreasing of the cycle-by-cycle variation and increasing of the ratio of EGR , not only reduces the emission of NOx further and the pumping loss at part load but also improves the fuel economy .

  8. 在发动机试验台上,利用CB-466燃烧分析仪研究了整体式和分体式进气道对四气门汽油机燃烧压力循环变动的影响。

    The effects of integrated and separated intake ports on cyclic variation of combustion pressure in a four-valve gasoline engine were analyzed with a CB-466 combustion analyzer on the engine test-bed .

  9. 在发动机试验台上,用CB-466燃烧分析仪对四气门汽油机低速低负荷燃烧压力循环变动进行了试验研究。

    The cyclic variation of the combustion pressure in the cylinder of a four-valve gasoline engine was analyzed at low speed and light load with the CB-466 combustion analyzer on the engine test-bed .

  10. 天然气缸内直喷发动机燃烧循环变动特性研究

    Study on Cycle-by-Cycle Variations in a Direct Injection Natural Gas Engine

  11. 电控系统转速计算对燃烧循环变动的影响研究

    The Influence of Electronic Control System Speed Calculation on Cycle-to-cycle Variation

  12. 火花点火发动机燃烧循环变动的理论研究

    A Theoretical Study on Combustion Variations in Spark Ignition Engine

  13. 增压柴油机燃烧循环变动分析

    Analysis of Combustion Cyclic Variations in a Supercharged Diesel Engine

  14. 柴油机燃用甲醇燃料的燃烧循环变动的研究

    Investigation on combustion cyclic variations of Diesel Engine Fueled with neat methanol

  15. 汽油机最高爆发压力循环变动的分布规律

    Distribution Law of Peak Pressure Cyclic Variation in Gasoline Engine

  16. 火花点火发动机压力循环变动特性研究

    An Investigation on the Cyclic Pressure Variation in a Spark Ignition Engine

  17. 生物柴油掺烧率对非道路用柴油机燃烧循环变动特性的影响

    Effect of Bio-Diesel Fraction on Cycle-by-Cycle Variations of an Off-Road Diesel Engine

  18. 6190燃气发动机循环变动试验研究

    Experimental Research on Cyclic Variation of 6190 Natural Gas Engine

  19. 运转因素对汽油机最高燃烧压力循环变动影响的研究

    The Influence of Operation Factors on Gasoline Engine Maximum Combustion Pressure Cyclic Variation

  20. 湍流参数对燃烧循环变动影响的模拟分析

    Simulative Analysis of Influence of the Turbulent Flow Parameters on Cyclic Combustion Variation

  21. 电喷汽油机循环变动的测量分析

    The Measurement and Analysis of Cyclic Variability on an Electronically Injection Gasoline Engine

  22. 小型直喷柴油机循环变动特性分析

    The Study on Cycle to Cycle Variation of a Small DI Diesel Engine

  23. 汽油机的循环变动及其影响因素

    Gasoline Engine Cycle-to-Cycle Variations and Their Effect Factors

  24. 混合气偏浓,循环变动明显减小。

    Cycle-to-cycle variations decrease markedly with richer mixture .

  25. 典型工况下的稀燃天然气发动机燃烧循环变动研究

    Study on Cycle-to-cycle Combustion Variations under Typical Conditions in a Lean Burn Natural Gas Engine

  26. 内燃机缸内工作过程循环变动的快速测定方法

    A Method of Fast Measuring the Cyclic Variability of Working Process in Internal Combustion Engines

  27. 火花点火发动机燃用天然气掺氢混合燃料循环变动研究

    Study of Cycle-by-Cycle Variations of a Spark Ignition Engine Fueled with Natural Gas / Hydrogen Blends

  28. 符号时间序列方法在汽油机燃烧循环变动特征分析中的应用

    Applications on method of symbolic time series to characteristics analysis of cyclic combustion variations in gasoline engine

  29. 平均指示压力循环变动率随负荷增加而减小,供油提前角变化时,燃烧过程循环变动变化不大。

    The combustion characteristic cyclic variations do not change remarkably when the fuel supply advance angle changes .

  30. 由于混合气的快速燃烧,使燃烧过程的循环变动下降,燃烧滞后期和燃烧持续期都大为缩短。

    Because of the fast burning of the lean mixture , the stability of the combustion process is increased .