单缸内燃机的平衡方法

本文首先分析单缸内燃机不平衡惯性力的产生，给出平衡方程，并对平衡条件及常见平衡方法进行分析，着重分析和论证过量平衡的最简单方法，给出仅考虑一级惯性力时正置和偏置平衡重剩余惯性力的矢端轨迹，此外在考虑一、二级惯性力时，通过数值计算法求出最大剩余惯性力为最小或最合理方向的条件，这对单缸内燃机的设计和生产均有现实意义。

BALANCING METHOD OF SINGLE CYLINDER INTERNAL-COMBUSTION-ENGINE

There are many causes to make the vibration of reciproeating internal combustion-engine. The main causes are as follow: (1) no balanced reciprocating inertial force; (2) no balanced centrifugal inertia1 force; (3)twist changing in four processes; (4) press changing of gas in the cylinder. Because single cylinder internal-combustion-engine has no balance parts as multiple cylinder internal-combustion-engine, it is more clear in no balancing. The major affecting factors are no balanced reciprocating inertial force and centrifugal inertial foree. After analysing the no balanced inertial force of single cylinder internal-combustion-engine, the balanced equation were obtalned and several usual balancing methods were analysed. In these mainly analysing and discussing the over weight method is the simplest one. The results are about the balance weight in the opposite and leaning opposite direction to balance the first grade no balanced inertial force as well as about strongness and direction of the minimal force left no balanced. Otherwise, the problem of the first and the second grade inertial force is solved through data calculated mothod.