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How did the cylinder liners get corroded?

2016-08-15


The corrosion of the cylinder liner is the damage caused by the electrochemical action of acids. When the cylinder liner wall temperature is low, the water vapour into the cylinder will condense into water droplets. These droplets and the role of combustion gas and generate acids, such as organic acids, sulfuric acid, carbonic acid, etc., they condensed on the cylinder wall will corrode the cylinder. Practice has proved that when the cooling water temperature is lower than 65 ~ 70 ℃, or diesel engine in the low temperature of frequent starts, corrosion and wear will increase significantly. Therefore, in the use of the process to pay attention to the cooling water temperature control, try to reduce the number of cold starts.

2016/08/15

Factors to consider when choosing a diesel engine

the use of diesel engines. For frequent starting and often moving machinery, such as tractors, agricultural vehicles, mobile power stations, etc., can choose light high-speed diesel engine; for fixed power devices, such as agricultural irrigation and drainage, agricultural by-products processing machinery supporting power, you can choose a lower speed and the potential of a larger diesel engine. At the same time, for agricultural power, most of the time long-term continuous operation, so good economy is very important.

2016/08/15

What are the characteristics of the wear process of cylinder liners?

To the normal technical condition, because with the parts fit well, lubrication conditions are improved, in a longer working time, wear is slow and uniform. When due to wear and cylinder gap more than a certain value, due to the gas and oil leakage and moving parts of the knock and other factors, wear and increase.

2016/08/15

Basic requirements for diesel engines

Basic requirements for diesel engines

This question concerns how to evaluate the diesel engine. With the development of socialist construction cause, China's diesel engine models continue to increase, the performance indicators gradually improve and enhance. At present, the domestic civilian diesel engine has more than one hundred kinds, there is a comprehensive use of high degree of general models, but also for special purposes of special models. In this case, how to correctly evaluate, reasonable choice of diesel engine is a very important issue.