摘要
本文根据发动机气门机构的工作特点，从物理意义出发，介绍了不同机构与气门间隙之间的关系及其气门间隙的精确计算与简略估算方法。按照这一关系及其计算方法，为发动机设计和维修人员在确定不同气门机构的气门间隙时提供一个参考。
Based on the characteristics of structure and operation for valve mechanism,two calculation formulas are put forward to determine the valve clearance while designing a new engine.One of them will give an accurate value,the other is an estimate one.According to the formulas,both design and service can take them as references.
