谈气门的密封与研磨南安县杨才辉，陈守朴气门是否密封直接影响发动机的起动性能和功率，密封良好的发动机在压缩冲程临终时燃烧室里压力和温度较高，起动易着火，燃料燃烧也较完全．马力就较大，否者则相反．气门密封是靠气门头的环形斜面与气门孔座的环形斜面密合接触而... On the sealing and grinding valve Nanan Yang Caihui, Chen Shou Park valve seal is a direct impact on the engine starting performance and power, a good seal of the engine at the end of the compression stroke high pressure and temperature in the combustion chamber, easy to start the fire, the fuel combustion is more complete . Horsepower is larger, the other is the opposite. Valve seal is by the valve head of the annular bevel and the valve seat ring bevel contact intimate contact ...