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qi men chuan dong zu yi xiang gu zhang yuan yin fen xi
Author(s): 
Pages: 42
Year: Issue:  10
Journal: Farm Machinery Using & Maintenance

Abstract: 气门传动组是发动机配气机构的重要组成部分,主要由凸轮轴、凸轮轴正时齿轮、挺柱等组成.气门传动组按规定的配气相位定时地驱动气门开闭,并保证气门有足够的开度和适当的气门间隙. 下面将气门传动组异响故障原因及诊断方法叙述如下. 一、气门液压挺柱产生异响 1.故障现象 在发动机运转时,出现有节奏的"嗒、嗒"声,发动机怠速时较为明显,但在中速以上时响声会减弱或消失.
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