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<h1 class="h1">柴油高压共轨系统运作原理是什么？</span></h1>
<div class="text">发布来源：康柴（深圳）电力技术有限公司　　发布日期: 2025-03-15　　访问量:942</div>
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<p>柴油高压共轨系统指在高压油泵、压力探头和电子控制单元(ECM)构造的闭环系统中，将喷射压力的产生和喷射过程彼此完全分开的一种供油步骤。其主要特点是可以在宽广的范围内改变喷射压力和喷射时间，通过将油压发生过程和燃油喷射控制过程分开考虑实现柴油发电机电子控制。</p><p>燃油从燃油箱被吸入到进油泵，然后通过PCV输送到抽吸系统<a href="http://www.gdkmsfdj.com" target="_blank">柴油发电机组厂家</a>。PCV将抽吸机构抽吸的燃油量调节到必要的排出量<a href="http://www.gdkmsfdj.com" target="_blank">发电机不正常运行状态</a>，然后燃油通过出油阀被压送到油轨。</p><p>从进油泵输送的燃油经过柱塞抽吸。为了调整油轨压力，PCV对排放量进行控制。实际操作如下所示。</p><p>就在柱塞进入上升行程时，PCV不通电并保持开启。此时，通过PCV吸入的燃油没经过加压（预行程）而通过PCV返回。</p><p>在获得所需排放量的较佳时机，提供电力使PCV关闭，则返回通道关闭，同时柱塞室中的压力上升。因此，燃油流经出油阀（反向切断阀），然后被抽吸到油轨。详细情形是，PCV关闭之后柱塞升程部分变成排放量，而且通过改变PCV关闭正时（柱塞预行程的终点），排放量得到改变，从而使油轨压力得到控制。</p><p>当凸轮超过较大升程时，柱塞进入下降行程，同时柱塞室中的压力下降。此时，出油阀关闭，燃油抽吸停止。此外，PCV由于被断电而打开，低压燃油被吸入到柱塞室。具体状况是，机构进入A状态。</p><p>如果压力不正常高，则压力限制器打开以释放压力。如果油轨中的压力不正常高，压力限制器作业（打开）。它在压力减少到一定水平之后恢复（关闭）。由压力限制器释放的燃油返回到油箱。</p><p>b.油轨压力探头（Pc传感器）油轨压力传感器（Pc传感器）装配在油轨上。它检测油轨的燃油压力，然后发送信号给发电机监控系统。这是一个半导体传感器，它利用了压力施加到硅元件上时电阻产生变化的压电效应。</p><p>c.流动缓冲器流动缓冲器可降低加压管中的压力脉动，并以稳定的压力向喷油嘴提供燃油。流动缓冲器也可在产生燃油过量排放时（例如喷射管道或喷油器出现燃油泄漏的情况）切断燃油通道，从而避免燃油异样排放。</p><p>(1)作业原理当高压管中出现压力脉动时，它穿过大孔发生的阻力破坏了油轨侧和喷油器侧的压力平衡，因此活塞将移到喷油器一侧，从而吸收压力脉动。正常压力脉动状况下，喷射因燃油流量降低而停止。随着通过量孔的燃油量增加，油轨和喷油器之间的压力得到平衡。结果，因为弹簧压力，活塞被推回油轨侧。但是，如果因为喷油器侧燃油泄漏等而产生异常流量状态，通过大孔的燃油就会失去平衡。这将使活塞被推动抵住底座而导致燃油通道封闭。</p><p>·喷油器根据ECM发出的信号，将油轨中的加压燃油以较佳的喷射正时、喷射量、喷射率和喷射方法喷射到发电机燃烧中。</p><p>TWV对控制室中的压力进行控制<a href="http://www.gdkmsfdj.com" target="_blank">康明斯发动机故障码查询表</a>，从而对喷射的开始和结束进行控制。量孔可通过限制喷嘴打开的速度来控制喷射率。</p><p>喷油器通过控制室中的燃油压力来控制喷射。TWV通过对控制室中的燃油泄漏进行控制，从而对控制室的燃油压力进行</p><p>以上是由广东康明斯发电设备授权厂商为大家共享的柴油高压共轨装置的作业原理，希望对各位用户有帮助。康明斯发电机公司创始于1974年，为广东康明斯动力集团全资子公司，是国内生产发电机组较早的OEM主机厂之一。主营品牌有：康明斯发电机组、玉柴发电机组、康明斯发电机组等等。康明斯发电机公司设有64个出售服务部，持久为用户提供技术咨询，免费调试，免费修理，免费培训服务。服务热线：</p></div><a href="http://www.gdkmsfdj.com/" target="_blank">http://www.gdkmsfdj.com</a>
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