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柴油饥敲缸或异响的产生原因.总括起来有两方面,即燃油燃烧引起的和机械方面引起的。燃油敲缸或异响是由于燃油喷入气缸后不能马上燃烧(即延迟期过长),使燃烧时因油量积累过多,爆发压力过高而引起的。机械敲缸的原因,是由于各运动部件的间隙过大所致。鉴别两种敲缸的方法是采用停缸法,停某缸供油,敲击声消失为燃油敲缸,反之则为机械敲缸。 1 燃油敲缸或异响其发生原因有: 1.1 喷油时间过早其特征是气缸内发出有节奏而清脆的金属敲击声。起动爆发时明显.突然加油明
The causes of the diesel cylinder knocking or abnormal sound .To sum up there are two aspects, that is caused by the combustion of the fuel and caused by the mechanical. Fuel knocking or abnormal sound is due to the fuel injected into the cylinder can not be immediately burned (ie, the delay period is too long), so that the combustion due to excessive accumulation of oil, the pressure caused by the explosion. Mechanical knocking cylinder is due to the various parts of the movement due to excessive clearance. Identification of two knocking cylinder method is to stop the cylinder method, stop a cylinder of oil, percussion disappeared as the fuel knock cylinder, on the contrary for the mechanical knock cylinder. 1 fuel knock or abnormal sound The reasons are as follows: 1.1 fuel injection time is too early, characterized by a rhythmic and crisp metal bellow issued within the cylinder. When the start of the outbreak is obvious