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发动机在运转中,内部发出不正常的响声是多种多样的,往往发动机在运转过程中产生的超过技术文件规定的不正常响声,称为发动机异响。发动机异响在同一发动机上不同性质的故障反映出来的响声很相似,在不同的发动机上同样性质的故障所反映出来的响声却不一样,加上正常声音和不正常的响声混杂在一起,因此给判断响声带来一定的困难。但是,只要我们掌握检查、判断的基本方法,弄清响声特点,出现时机、变化规律,就可较准确地判断出响声发生的部位及性质。
Engine in operation, the internal abnormal noise is issued a variety of, often in the course of operation of the engine over the provisions of technical documents abnormal sound, called the engine noise. Engine abnormal noise in the same engine on the nature of different faults reflected the sound is very similar to different engines on the same nature of the fault reflects the sound is not the same, together with the normal noise and abnormal noise mixed together, therefore To judge the sound brought some difficulties. However, as long as we master the basic methods of inspection and judgment, understand the characteristics of noise, the timing and the law of change, we can judge more accurately the site and nature of the sound.