陈坚

（胜利油田胜利动力机械集团有限公司，山东东营 257032）

摘要：气阀及其气阀座圈这对摩擦副是气体发动机重要零部件之一，也是主要的易损件之一。本文根据某款气体发动机经1000小时耐久试验后的气阀及气阀座圈磨损情况，通过对其外观检测、几何外形结构、材料及金相组织、摩擦副硬度匹配等方面进行逐一比对分析，阐述了气阀及气阀座圈易磨损的原因，并提出了解决问题的途径及改进优化的对策。

关键词：气体发动机、气阀、气阀座圈、磨损、燃烧室

Abstract：Valve and valve seat of the friction pair is one of the important parts of gas engine, is also the main vulnerable parts of the. In this paper, combined with a gas engine after 1000 hour endurance test of the valve and valve seat wear, one by one analysis by detecting, the appearance of geometry, material microstructure and hardness, friction pair matching etc., expounds the reasons of valve and valve seat is easy to wear, and puts forward the way to solve the problem and Countermeasures for improvement.

Key words：gas engine,Valve, valve seat, wear, combustion chamber

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