Study on the Analysis and Test Method of Valve Guide Wear Issues in a Type of Natural Gas Engine
This study analyzed the wear issues of the valve guide in a type of natural gas engine during short-distance use,finding a strong correlation with temperature.Preliminary judgment suggests that the guide material may not meet the requirements of high-tem-perature environments.The material of the valve guide was improved to enhance its hardness at high temperatures for better wear resist-ance,and its thermal conductivity was increased to strengthen heat dissipation,effectively reducing the operating temperature of the valve guide and solving the wear problem.In addition,to assess the wear condition of the valve guide,a new test method was proposed that can quickly evaluate the high-temperature wear resistance of the valve guide during actual engine operation.This not only ensures the effectiveness of the improvement measures but also shortens the verification cycle and reduces the test cost.
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