Disadvantages: poor cooling effect and loud noise, which are mostly suitable for small diesel engines.
Advantages of water-cooled diesel engine: Water-cooled diesel engine has good cooling effect and is suitable for high-power diesel engine. When the temperature or workload changes, the cooling intensity can be adjusted conveniently, so that the diesel engine can always work in the specified temperature range (65℃ ~ 95℃). In addition, it can be preheated with hot water in winter, which is convenient for starting.
Disadvantages: due to the limitation of water cooling mode, there are also shortcomings that cylinder liners are easy to scale and cavitation.
Extended data
The manufacturing process requirements of air-cooled diesel engines are higher than those of water-cooled diesel engines, and the requirements for the heat resistance, wear resistance and expansion coefficient of the materials used are also higher. Air-cooled diesel engine is easy to start, economical to run and has strong adaptability to the environment, which is welcomed by the majority of users. Attention should be paid when using: after starting, idle at low speed for a period of time, and then put into operation after the standby temperature rises and the oil pressure is normal, so as to avoid the machine temperature rising too fast and damaging parts.
If the engine can't be shut down immediately after stopping running, the diesel engine should be idling at medium and low speed for a period of time, and then shut down after the standby temperature drops properly; During operation, it should be noted that the engine temperature should not be too high. The air-cooled diesel engine completely relies on the strong airflow generated by the fan to cool the engine body, and the working temperature shall not exceed 120 degrees (higher than that of the water-cooled diesel engine), and cylinder pulling accidents may occur if you are not careful in operation.
Application: Air-cooled diesel engines are mainly used in agricultural machinery, construction machinery, automobile industry, marine machinery, oil exploitation and other fields.
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