Plate fin oil cooler

Plate fin oil cooler
K38 and K50 diesel engine oil coolers adopt plate-fin heat exchangers. The cooler core is installed in the main oil passage in the middle of the cylinder block. The O-ring seal of the cooler has been modified. The new O-ring seal has two red bands. The material of such O-ring seal will expand rapidly when it comes into contact with engine oil. Therefore, be sure to lubricate the O-ring with vegetable oil when installing the cooler core into the cylinder. O-rings cannot be reused.
The oil cooler is a device that accelerates the heat dissipation of lubricating oil and keeps it at a lower temperature. On high-performance, high-power reinforced engines, due to the large thermal load, an oil cooler must be installed. The oil cooler is arranged in the lubricating oil circuit and its working principle is the same as that of the radiator. The oil cooler can be water-cooled. The oil cooler is placed in the cooling water circuit and uses the temperature of the cooling water to control the temperature of the lubricating oil. When the temperature of the lubricating oil is high, it is cooled by the cooling water. When the engine is started, heat is absorbed from the cooling water to quickly increase the temperature of the lubricating oil.

The oil cooler consists of an oil cooler cover made of aluminum alloy and an oil cooler core brazed with plate fins. Cooling water flows in the space enclosed by the oil cooler cover and the body, and lubricating oil flows in the plate fins. The heat transfer process of the plate-fin oil cooler is mainly completed through the heat conduction of the fins and the heat convection between the fins and the coolant. Ensure that the engine oil temperature (90℃-120℃) and viscosity are within a reasonable range; it is generally installed on the engine body and installed integrally with the cooling cover during installation.