由于生产上的需要,我们对木材生产中一种载重汽车柴油机的配气凸轮进行了测绘。这种柴油机功率大,转速高,属于一种高速柴油机。它的凸轮升程曲线为较复杂的函数曲线。现将我们对该凸轮测绘的方法与体会介绍如下。 如众所周知,配气凸轮的形状对发动机的工作有着极大的影响。因为它一方面决定气门开启的时间断面大小(即气门开闭的快慢及开度的大小),另一方面又决定配气机构的动力特性(即机构各另件的运动规律与惯性负荷的大小)。一般来说,气门开度越 Due to production needs, we mapped the distribution cam of a truck diesel engine in wood production. This diesel engine power, high speed, is a high-speed diesel engine. Its cam lift curve is a more complex function curve. Now we on the cam mapping methods and experience are described below. As we all know, the shape of the gas distribution cam has a great influence on the work of the engine. Because it determines on the one hand the timing of valve opening cross-sectional size (ie, the speed of the valve opening and closing and opening size), on the other hand, and decided the dynamic characteristics of the valve body (that is, the movement of the body parts and other parts of the inertia load size ). In general, the more the valve opening