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<h1 class="h1">柴油发电机组喷油提前角调节系统</span></h1>
<div class="text">发布来源：重康电力（深圳）有限公司　　发布日期: 2025-06-24　　访问量:775</div>
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<p>喷油提前角是指柴油开始喷入汽缸的时刻相对于主轴上止点的曲轴转角，而供油提前角则是喷油器开始向气缸供油时的曲轴转角。显然，供油提前角销大于喷油提前角。因为供油提前角便于严查调整，所以在生产单位和使用部门采用较多。喷油提前角需要复杂而精密的仪器方能测定，通常在科研中运用。也就是说，</p><p>的喷溅提前角（供油时间）是通过调整喷油泵的供油提前角来实现的。整体式喷油嘴柴油发电机的总供油时间一般以喷油嘴第一缸供油提前角为准，调整整个喷油器供油提前角的方法是改变喷油嘴凸轮轴与曲轴间的相对角位置。为此，喷油咀凸轮轴一端的联轴器一般是做成可调节的。如图1所示为一种联轴器组成。</p><p>联轴器主要由两个凸缘盘组成，装在驱动齿轮轴上的凸缘盘和装在喷油咀凸轮轴一端的从动凸缘盘，两凸缘盘间用螺钉连接。驱动凸缘盘装配螺钉的孔是弧形的长孔。松开固定螺钉可变更两凸缘盘间的相对角位置，从而变更了整个喷油泵的供油提前角。</p><p>将喷油咀从柴油发电机上拆下后再重新装回时，可先将喷油咀固定在柴油发电机机体上的喷油泵托架上，再慢慢转动主轴，使柴油发电机第一缸的活塞位于压缩行程上止点前相当于规定的供油提前角的位置，然后使喷油嘴凸轮轴上与喷油咀壳体相应记号对准，如图2所示，再联轴器的固定螺钉。</p><p>多数柴油发电机是在标定速度和全负荷下通过试验确定在该工况下的较佳喷油提前角的，柴油发电机作业步骤中一般不再变动。对于速度范围变化比较大的柴油发电机，为了增强其经济性和动力性，希望柴油发电机的喷油提前角能随转速的变化自动进行调整，在这种柴油发电机的喷油嘴上，往往装有离心式供油提前角自动调节装器。</p><p>如图3所示为一种离心式供油提前角自动调节器。调整器装在联轴器和喷油咀之间。前端面有两个方形凸块的驱动盘。在驱动盘的腹板上装有两个销轴。两个飞块的一端各有一个圆孔套在此销轴上。两个飞块的另一端则压装有两个销钉。每个销钉上松套着一个滚轮内座圈和滚轮。调整器的从动盘的毂部用半月键与喷油咀凸轮轴相连。从动盘两臂的弧形侧面与滚轮接触，另一侧面则压在两个弹簧上<a href="http://www.fdjhs.cn" target="_blank">康明斯发电机生产厂家</a>。弹簧的另一端支在弹簧座圈上。弹簧座圈则由螺钉固定在销轴的端部。从动盘还固定有筒状盘，其外圆面与驱动盘的内圆面相配合，保证驱动盘与从动盘的同心度。整个调整器为一密闭体，内腔充满机油以供润滑。</p><p>柴油发电机工作时，驱动盘连同飞块被曲轴驱动而旋转。飞块在离心力的用途下绕销轴转动，其活动端向外摆动。同时，滚轮则迫使从动盘沿箭头方向转动一个角度<a href="http://www.fdjhs.cn" target="_blank">柴油发电机型号规格及功率</a>，直到弹簧的弹力与飞块的离心力相平衡为止。故而驱动盘与从动盘开始同步旋转。当柴油发电机转速升高，飞块活动端进一步向外张开，从动盘被迫再沿箭头方向相对于驱动盘转过一定角度，使供油提前角随速度增加而相应增大。反之，主轴转速降低，飞块离心力降低，从动盘在弹簧的用途下退回一定角度，使供油提前角相应减少。这种离心式供油提前角自动调节器可以保证供油提前角在速度变化时，在0~10度范围内自动调整。</p><p>以上是广东康明斯发电装备服务商为您引荐的柴发机组喷油提前角调整装置。康明斯发电机公司自1992年开始，一直为国家内燃机发电机组品质监督检查中心检查合格的发电机组制造厂商，通过CE认证<a href="http://www.fdjhs.cn" target="_blank">康明斯发电机组厂家排名</a>、IS09001-2008质量管理体系认证、ISO1400:2004环境管理体系认证，GBIT28001-2001职位健康安全管理体系认证并获得自营进出口资格、信息产业部入网资格、广电部入网资格、中石油入网资格、中国移动入网资格、船用机组制造资格。更多发电机/柴油发电机组/柴油发电机组详情欢迎拨打康明斯热线：</p></div><a href="http://www.fdjhs.cn/" target="_blank">http://www.fdjhs.cn</a>
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