With the increasing demand for high-end motorcycles, riders pay more and more attention to engine technology. However, there will inevitably be some misunderstandings in this process, which may be caused by personal cognition or influenced by surrounding sounds. Therefore, Knight sharing will be divided into several issues from time to time, and briefly elaborate on the application of some common technologies of motorcycles with personal understanding, so as to provide reference for motorcyclists.
What we want to talk about in this issue is the cooling mode of motorcycles. Let's start with the characteristics of water-cooled engine and air-cooled engine.
The water-cooled engine and air-cooled engine we often say are a description of the cooling mode of the engine. Because the heat dissipation forms adopted by these two types of models are different, the actual working principle will be different.
However, in essence, these two types of engines use natural wind for heat dissipation, but the heat dissipation efficiency of water-cooled engines will be higher. Therefore, there are the most basic differences between these two types of engines, and the heat dissipation effects are different.
Generally speaking, the water-cooled engine can quickly take away the heat generated by the engine during the whole working process because it dissipates heat with the help of additional liquid.
The air-cooled engine has no additional auxiliary heat dissipation system, so it will be relatively low energy, but the structure will be simpler. As long as we keep the cleanliness of the cylinder head and cylinder block, its heat dissipation system will not have any failure.
Here, there is another difference between the two types of models, cost and failure rate. Because the water-cooled engine needs additional water pump, radiator and coolant, the manufacturing cost in the early stage and the maintenance cost in the later stage are higher than that of the air-cooled engine.
So why are there different forms of heat dissipation systems for the same motorcycle engine? In fact, the core element here mainly depends on the work ability of the engine, because from the mechanical characteristics, what form of heat dissipation system it adopts mainly depends on the compression ratio of the engine, and the compression of the engine will affect the work ability of the current engine to a great extent.
In short, the low compression ratio engine usually does not adopt the form of water cooling, because the simple air cooling structure can meet the heat dissipation requirements of this type of model in the normal use process.
The high compression ratio engine must use the form of water cooling and heat dissipation. Otherwise, this kind of engine will easily be unable to maintain a relatively constant temperature due to the high temperature generated in its own working process, resulting in excessive wear and even cylinder pulling.
Therefore, in terms of heat dissipation form alone, the water-cooled engine is not necessarily better than the air-cooled engine, and the air-cooled engine is not necessarily inferior to the water-cooled engine. It is possible that the water-cooled engine is prone to some adverse reactions such as water leakage and abnormal water temperature due to the additional heat dissipation system.
Therefore, we can draw a conclusion that whether a motorcycle engine is good or not depends not only on its heat dissipation form, but also on its actual working state.
After all, the cooling system is only a basic auxiliary function of the engine. As long as this system can ensure the normal cooling requirements of the engine, I think the air cooling with simpler structure will be more reliable.
This is one reason why some public upgraded motorcycle engines still use air cooling for heat dissipation. So don't say that wind chill is the representative of backwardness. It's easy to slap your face.
Finally, the biggest difference between motorcycle air-cooled engine and water-cooled engine is cost and heat dissipation effect. However, the actual heat dissipation effect depends on the compression ratio of the engine, so these two types of models are not good or bad in an absolute sense. It can only be said that the most suitable is the best. Therefore, when choosing a motorcycle, there is no need to place too much emphasis on the form of heat dissipation, but should look at its internal technology. After all, air cooling and water cooling are just a representation.