What is the function of an oil-gas separator?
2 Answers
Oil-gas separator is used to separate the engine oil from the gases discharged by the crankcase, reducing the emission of engine oil from the crankcase breather to the outside of the engine. The oil-gas separator is commonly known as the exhaust valve, and some people also call it the pressure control valve. The following is about the principle of the oil-gas separator: The working principle of the oil-gas mixture mainly utilizes the density difference between oil and gas. When the oil-gas mixture enters the separator through the inlet pipeline, it is sprayed onto the oil baffle cap. The dispersed oil slides down along the pipe wall to the lower part of the separator by gravity and is discharged through the oil discharge pipe. At the same time, the gas, due to its lower density, rises and changes its flow direction upwards through the separation umbrella, adhering small oil droplets in the gas to the umbrella wall, which then gather and flow down along the wall.
My range hood is equipped with an oil mist separator, and this thing is incredibly practical! With all the heavy cooking fumes in the kitchen, it efficiently separates oil and smoke. Look at that metal filter mesh—it's specifically designed to trap oil particles, allowing the oil to flow down into the oil cup below. The smoke, on the other hand, gets directly sucked out by the fan. Before, the walls would always be covered in a greasy layer after cooking, making cleaning a tiring chore. Now, I only need to clean the oil cup every two months, and the stovetop and walls stay much cleaner. Without this separator, all the oil and smoke would gunk up the fan blades, gradually reducing suction power, and I might even end up spending a fortune to replace the entire range hood.
