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来源：百度知道 编辑：UC知道 时间：2024/05/21 10:26:28
METHODS OF INJECTION
learning objective Describe the principles and operation of the different diesel fuel systems
you have probably head the statement that "the fuel injection system is the actual heart of the diesel engine"
when you consider that indeed a diesel could not be developed until an adequate fuel injection system was designed and produced,this statement takes on a much broader and stronger meaning
in this section,various methods of mechanical injections and metering control are described.
there have been many important developments in pumps,nozzles,and unit injectors for diesel engines over the years with the latest injection system today relying on electronic controls and sensors.
fuel injection systems
diesel fuel injection systems must accomplish five particular functions-meter,inject,time,atomize,and create pressure . A description of these functions follows:
1.METER--accurately measure the amount of fuel to be inje
learning objective Describe the principles and operation of the different diesel fuel systems
you have probably head the statement that "the fuel injection system is the actual heart of the diesel engine"
when you consider that indeed a diesel could not be developed until an adequate fuel injection system was designed and produced,this statement takes on a much broader and stronger meaning
in this section,various methods of mechanical injections and metering control are described.
there have been many important developments in pumps,nozzles,and unit injectors for diesel engines over the years with the latest injection system today relying on electronic controls and sensors.
fuel injection systems
diesel fuel injection systems must accomplish five particular functions-meter,inject,time,atomize,and create pressure . A description of these functions follows:
1.METER--accurately measure the amount of fuel to be inje
METHODS的INJECTION学习目标描绘原则和运作的不同柴油机燃料系统你有大概头儿声明那个燃料喷射系统是真实
心的柴油机什么时候你考虑那个的确a内燃机车不能被发展直到一适当燃料喷射系统被设计的和生产这个声明发生
作用向前a宽广得多的和强有力地用意进入这个部分各种各样方法的机械注射和用表计量控制被描绘.今天在过去
多年中已经有很多为柴油机随着最新注射系统在泵,管嘴和单位注射者中重要发展信赖电子控制和传感器.燃料喷
射系统柴油机燃料注射系统必须完成五特殊功能-米,注射,选定的时间,使压力雾化和建立.一这些功能的描绘下面
是:1.METER--准确测量燃料的总量被注射.2.INJECT--迫使进入和把燃料分成燃烧室.在恰当时刻3.TIME----燃料
的注射必须开始和停止.4.ATOMIZE--拆散向上燃料成一晴朗薄雾.5.CREATE为注射向--必然高压压力施压力----建
立. 以后英语有什么难题找我
我过6级了
注入方法
掌握不同燃料发动机系统客观描述和基本操作原理，你大概已经听过“燃料注入系统事实上是发动机的心脏”这样的陈述。
如果一个燃料注入系统没有被设计和生产出来那么引擎就不可能得到发展，这句陈述更加拓展和强化了燃料注入系统的意义
本章介绍了各种机械式注入系统和标尺控制，在经过油泵、nozzles和燃料注入单元的持续几年发展后，才出现了现今采用的依靠电子装置和传感器控制的注入系统。
燃料注入系统
燃料注入系统必须完成五项特定功能即测量、注入、前后时间、自动混合、增压。以上功能具体阐述如下：
1.燃料液面标尺-精确测量注入燃料的数量
2.化油器-注入和分配燃料进入内燃机气缸
3.继电器-燃料注入的开始和结束的恰当时间
4.喷嘴-混合燃料
5.增压阀-产生注入燃料必须的高压