通过模拟柴油机气阀机构的两种常见的主要故障：气阀漏气和气门间隙异常。
By simulating two kinds of main fault of a valve train, which are the gas leak and abnormal lash, the vibration signals of a cylinder head have been measured.
该仪器通过测量柴油机缸盖表面的振动信号，提取特征参数，对柴油机的气阀漏气与间隙异常进行诊断。
The instrument measures vibration signal of diesel cylinder header, extracts the characteristic parameters, to diagnosis for fault of leakage and abnormal space of valve.
进气阀和排气阀密封有问题也会造成压缩时漏气。
The intake or exhaust valves are not sealing properly, again allowing a leak during compression.
试着放松或绷紧进气阀安装螺钉，可以校正漏气的故障。
By either loosening or tightening the inlet-valve mounting screws, the leakage may be corrected.
可以将三阶谱的峰值作为判断气阀是否漏气的一个诊断特征量，同时也为诊断内燃机气阀的早期漏气故障提供了依据。
The peak value varies in different fault conditions and it can be used as a characteristic for diagnosing leakage fault of exhaust valve, the fault in initial stages can also be diagnosed.
气阀关闭及时、迅速，关闭时不漏气，以提高机器的效率，延长使用期。
Air valve closed timely, rapid, not leak closed to improve the efficiency of machines and extended use period.
气阀关闭及时、迅速，关闭时不漏气，以提高机器的效率，延长使用期。
Air valve closed timely, rapid, not leak closed to improve the efficiency of machines and extended use period.
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