People oriented, scientific management, customer first, harmonious development


Average effective pressure

2023-06-30


As can be seen from the work diagram, the pressure in the cylinder is changing all the time. Assuming that there is an average pressure of constant size, the work done by this pressure to move the piston one stroke is exactly equal to the effective work done per cycle. This is expressed in terms of e.

The average effective pressure is a very important basic parameter. It represents the engine unit cylinder volume issued by the effective work, in other conditions the same, the higher the рe value, the better the power performance of diesel engines. At present the average effective pressure of agricultural diesel engines is generally 4.5-8 kg/cm2.

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.