ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

溫度對柴油和二甲醚噴射系統(tǒng)性能的影
CSTR:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項(xiàng)目:


of Diesel and DME Injection System Performances at Different Temperatures
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    針對普通油泵—油管—油嘴燃油系統(tǒng),，建立了噴射系統(tǒng)的數(shù)學(xué)模型,。對不同溫度下柴油和二甲醚噴射系統(tǒng)性能進(jìn)行了數(shù)值模擬,。研究表明：在相同溫度下，二甲醚噴嘴壓力的上升和下降速率,、壓力峰值都比柴油低,，20℃時二甲醚較柴油下降51.1%,，50℃時較柴油下降45.2%，噴射速度和累積噴油量均遠(yuǎn)低于柴油,，針閥開啟時刻較柴油明顯延后,；在最大速度點(diǎn)，20℃和50℃時二甲醚分別較柴油下降38.8%和36.8%,。隨著溫度的升高,，柴油和二甲醚的噴嘴壓力、噴射速度下降,，針閥開啟時刻延遲,，且柴油的索特平均直徑明顯減小。

    Abstract:

    The mathematical model is established for the conventional pump-pipe-injector fuel system. Through the numerical simulations on diesel and DME injection systems, the effects of temperatures on these two injection systems are disclosed, and their differences are illustrated. At the same temperature, line peak pressure and the rate of pressure increase and decrease for DME are lower than that for diesel fuel. Pressure of DME drops 51.1% and 45.2% than that of diesel at 20℃ and 50℃. DME injection rate and cumulative volume flow through nozzle orifice are much lower than that of diesel. The open timing of nozzle is delayed. DME peak rate drops 38.8% and 36.8% than that of diesel at 20℃ and 50℃. With the increase of temperature, the diesel and DME pressures in nozzle, injection rate and SMD all decrease, and the open timing of nozzle is delayed. 

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

趙雪菲,李孝祿,方曉敏,特木樂.溫度對柴油和二甲醚噴射系統(tǒng)性能的影[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(6):10-15. of Diesel and DME Injection System Performances at Different Temperatures[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(6):10-15.

復(fù)制
分享
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期:
文章二維碼