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<h1 class="h1">柴发机组配气相位和气门间隙的引荐</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: 2024-11-28　　访问量:2184</div>
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<p>机理上发电机组柴油发电机的进气、压缩、做功和排气步骤都是在活塞到达上止点和到达下止点时开始或完成。但是为了进气更充分，排气更干净，进排烟门要提早打开、延长关闭。柴油发电机的进排烟开始开启和关闭的时刻以及开启的延续时间，通常用相对于上下止点的主轴转角来表示，称为配气相位或配气定时。表示每缸进排气配气相应（正时）关系的环形图，称配气相伴（正时）图，如图1所示。</p><p>在上止点附近，进排气门同时开启的角度称为气门重迭角。由于新鲜气体和废气流动惯性都很大，虽然进排气门同时开启，但气流并不互相错位与混合。</p><p>气门重迭角必须根据柴油发电机详细情况通过试验来确定。重迭角过小，达不到预期改善换气品质的目的，过量则可能出现废气倒流现状。</p><p>配气相位要根据柴油发电机的操作工况和主用转速来确定。不同的柴油发电机，其配气相伴是不一样的。配气相位的数值要通过试验确定。为保证配气相位的准确，在主轴与凸轮轴驱动机构之间一般设有专门的记号，在安装程序中必须按照操作介绍的要求将记号对准，不得随意改动。</p><p>柴油发电机工作时，气门、推杆、挺柱等零件因温度升高而伸长。如果在室温下装配时，气门和各传动零件及凸轮轴之间紧密接触，在热状态下，气门势必关闭不严，造成气缸漏气。为保证气门的密封性，必须在气门与传动件之间留出适当的间隙。</p><p>气门传动组在常温下装配时必须留有适当的间隙，以补偿气门及各传动零件的热膨胀<a href="http://www.gdkmsfdj.com" target="_blank">柴油发电机公司厂家</a>，此间隙称为气门的冷间隙。在柴油发电机正常运转时（热状态下）也需要一定的气门间隙，保证凸轮不用途于气门时，气门能完全密闭。柴油发电机在热态下的气门间隙称为气门的热间隙。</p><p>在柴油发电机操作过程中，由于零件的磨耗与变形，气门间隙会逐渐增大，促使进排气门迟开、早关，致使进排烟的时间变短，进气不足，排气不净，使柴油发电机的动力性与经济性下降，同时使各零件之间的撞击与磨损加剧，噪声增大。</p><p>在操作流程中，应按期检修和调整气门间隙。柴油发电机的气门间隙一般由制造厂给出，各机型都有详细规定，在常温下（冷间隙），通常进气门间隙在0.20~0.35mm之间，排气门间隙在0.30~0.40mm之间。调节气门间隙较好在冷机状态下，气门完全关闭时进行。因为在热机状态下，因为柴油发电机工作时间长短不一样，其机温也不同，气门间隙的大小不好把握。调整时<a href="http://www.gdkmsfdj.com" target="_blank">柴油发电机不发电维修方法</a>，首先转动主轴使要调整缸的活塞恰长处于压缩冲程上止点位置，此时，进排烟门处于完全关闭状态，然后用旋具和厚薄规调节该缸的进排气门间隙，调整完毕后按同样步骤依次调整其他缸<a href="http://www.gdkmsfdj.com" target="_blank">柴油机常见的故障以及维修</a>。调整气门间隙的方法是：先松开调节螺钉的锁紧螺母，再旋转调节螺钉，用规定数值的厚薄规插入气门杆与摇臂之间进行测量，使气门间隙符合规定，调节后再将锁紧螺母拧紧，复查一次，直到气门间隙在规定的范围内。</p><p>广东康明斯发电装备厂家公司为广东康明斯动力集团全资子公司，是国内生产发电机，柴发机组较早的厂家之一。主营品牌有：康明斯发电机组、里卡多发电机组、玉柴发电机组等。全国设有64个出售服务部，随时为用户提供规划、提供、调试、修复服务。电话：</p></div><a href="http://www.gdkmsfdj.com/" target="_blank">http://www.gdkmsfdj.com</a>
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