What you must understand of diesel engine rough work

Most of the engineering machinery and equipment use diesel engines as power, but there are also many problems, today Hovor on diesel engines work rough to tell you.

A, understand the diesel engine work rough

So what is the diesel engine work rough? Diesel engine work rough is an abnormal combustion phenomenon in the combustion process of the engine, in layman's terms, refers to the diesel engine fuel consumption, the work of the cylinder is not smooth, there is the feeling of punching the cylinder. Performance in the exhaust gas is the exhaust black, particulate matter, the car sound trembling violently.

This phenomenon will make the diesel engine moving parts by a strong shock load, thus reducing its service life, engine combustion noise increases, smooth running decline, the stability and reliability of the diesel engine is not good.

The mixture ignition should have the right mixture concentration and temperature two conditions. Diesel engine to meet the two conditions of the region has many, so the diesel engine ignition for multi-point spontaneous combustion ignition, and the location of the fire with different cycles and different.

As in the fire stall combustion period sprayed into the cylinder of diesel, the fire delay is different, first sprayed into the diesel fire delay time is longer, then sprayed into the diesel fire delay time is shorter. Therefore, is often more fire, once the fire, there are more fuel to participate in the combustion, so that the cylinder pressure rises sharply after the start of combustion, will occur in the diesel engine work rough phenomenon.

Second, preventive measures.

1, should not make the engine idle.

2, to choose high cetane value of diesel. Ensure the performance of the small fire delay, not to replace diesel with paraffin.

3, maintenance of the engine in time to check whether the injection advance angle within the specified range, such as does not meet should be adjusted.

4, even if the replacement of worn engine cylinder liner, piston, piston ring, to avoid cylinder leakage, compression ratio decline.

5, when starting the engine, must be fully warmed up. In winter, it is best to add hot water to the tank for preheating before starting.