What is a PCV heater?

[LeBrandon]

PCV heater is the crankcase ventilation pipe heater of an automobile engine. The crankcase ventilation pipe is installed to maintain the same pressure inside the engine as outside. The function of the heater is to effectively prevent freezing and better adapt to the cold climate in northern China. When the engine is running, high-pressure combustible mixture and burned gas in the combustion chamber will more or less leak into the crankcase through the gap between the piston group and the cylinder, causing blow-by. The blow-by gas consists of unburned fuel vapor, water vapor, and exhaust gas, which can dilute the engine oil, reduce its performance, and accelerate its oxidation and deterioration.