What is the function of an oil-gas separator?
2 Answers
Here is an introduction to the functions of an oil-gas separator: 1. Separate engine oil: It separates the engine oil from the gases discharged by the crankcase. This ensures timely separation of the aforementioned substances. 2. Extend lifespan: It maintains the good lubrication performance of the engine oil, which helps prolong the lifespan. 3. Reduce wear and corrosion of mechanical parts: It keeps the surface condition of each friction pair in good shape, which helps reduce corrosion and wear of mechanical parts. 4. Reduce oil leakage: It maintains the pressure inside the crankcase roughly equal to atmospheric pressure, balancing the pressure inside and outside the crankcase. 5. Reduce environmental pollution: It fully recycles mixed exhaust gases, improving engine economy and reducing environmental pollution.
I've seen quite a few cars from owners, and this thing called the oil-gas separator is basically there to prevent oil mist in the engine from going where it shouldn't. Back when I was repairing cars, it was common to see oil-gas mixtures coming out of the crankcase. If these went straight into the intake, oil droplets would stick inside and cause carbon buildup, and in severe cases, it could even damage engine parts. That's what the separator does—lets the gas out for emission while keeping the oil droplets to be recycled. I once worked on a car where the separator was clogged, and the engine was shaking badly with a sudden spike in fuel consumption. Upon opening it up, oil residue was piled up on the throttle body. So, regular checks are pretty important—don’t wait for small issues to turn into big problems. When repairing, you need special tools, and cleaning or replacing it isn’t expensive; just swap in a new one.
