柴油喷射系统分类
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">最先出现的是电控喷油泵技术,而后又发展了电控泵喷嘴技术和高压共轨喷射技术,后两种技术是现在最主要的柴油机电控喷射技术。其中,电控泵喷嘴技术的喷油压力非常高,可以达到</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">200MPa</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">,并且泵和喷嘴装在一起,所以只需要很短的高压油引导部分,泵喷嘴系统也可以实现很小的预喷量,其喷油特性是三角形的,并采用了分段式预喷射,这是很符合柴油机的要求</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">(</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">大众公司的</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">TDI</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">发动机就是使用这种技术</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">)</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">。但电控泵喷嘴技术的喷油压力受柴油机转速影响,使用蓄压系统的高压共轨技术可以解决这个问题。它的喷油压力低于泵喷嘴系统,能达到</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">160MPa</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">。有些公司看中了它对任意缸数的发动机喷油压力调节很宽泛的特点,逐步扩大其使用范围</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">(</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">最早使用高压共轨的轿车是阿尔法罗密欧</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">156</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">和奔驰</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">C</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">级别车</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">)</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">。</SPAN></FONT><FONT size=3><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt"> <BR>4.1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">第一代柴油机电控燃油喷射系统也称位置控制系统,它用电子伺服机构代替机械调速器控制供油滑套位置以实现供油量的调整。其特点是保留了传统的喷油泵</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">——</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">高压油管</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">——</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">喷油器系统,只是对齿条或滑套的运动位置由原来的机械调速器控制改为计算机控制。这类技术已发展到了可以同时控制定时和预喷射的</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial; mso-bidi-font-size: 10.5pt">TICS</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Arial; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial">系统</SPAN></FONT><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>Re: 柴油喷射系统分类
电喷侠客,请多发一点有关柴油机电控方面的知识,好吗?十分感谢!
Re: 柴油喷射系统分类
目前,电喷技术经历了三个阶段:泵管嘴、泵嘴和高压共轨。Re: 柴油喷射系统分类
看来关心这方面的人挺多啊,前几天在北油看了.呵呵,不过还不是很懂,希望各位大虾多发点好资料,小弟在此谢过拉!:) 不错
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