What happens if the oil cooler of a diesel generator set is broken? If the oil cooler is damaged and not replaced in time, it can lead to serious consequences. The function of the oil cooler is to cool the lubricating oil and maintain the oil temperature within the normal working range. If the oil cooler is damaged, the engine oil will experience continuous high temperature, and the system will also issue an alarm for high oil temperature. Moreover, the lubricating effect of the oil cannot be effectively exerted, which will cause intensified wear inside the engine, greatly reduce its performance, shorten its service life, and in serious cases, even cause damage to the engine.

When the diesel generator set is in operation, when the oil temperature reaches a certain level, the oil will decompose and deteriorate, causing poor lubrication. Therefore, high-power diesel engines are often equipped with oil coolers. To maintain the oil temperature within the normal range (around 80 ℃) and maintain the viscosity of the oil. The oil cooler, also known as the oil radiator, is divided into water-cooled and air-cooled. The function of the oil cooler is to cool the lubricating oil. Therefore, some engines are equipped with oil coolers, which lower the oil temperature and maintain a certain viscosity of the lubricating oil. The working principle of the oil cooler is the same as that of the radiator.

Working principle of water-cooled engine oil cooler: When the diesel engine starts, the temperature of the cooling water rises rapidly, while the temperature of the engine oil is lower. Therefore, after the addition of engine oil cooling water, the oil temperature rapidly increases and the viscosity decreases to adapt to work needs. After the diesel engine enters normal operation, when the oil temperature is higher than the cooling water temperature, the engine oil radiator resumes its operation and cools the oil with water, Keep the oil temperature within the normal range.

Working principle of air-cooled oil cooler: The air-cooled oil cooler is similar to a small radiator, and the core of the cooler is composed of many cooling pipes and cooling plates. The air-cooled oil radiator is installed in front (or behind) of the cooling system radiator, and it uses the air stirred by the fan to cool. Composed of flat copper tubes, heat sinks, frames, inlet and outlet pipes. When the diesel engine is in operation, the oil sent from the oil pump enters the oil filter through the oil filter, is cooled by air, and flows into the main oil passage through the oil pipe to lubricate various moving parts. The air-cooled oil cooler requires a long warm-up time after the engine starts to allow the oil to reach normal operating temperature.

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