What is the function of the Wuling PCV valve?
1 Answers
PCV valve mainly functions to guide the gases from the crankcase into the intake manifold through the PCV valve, with a small amount of air entering the intake manifold directly from the air filter via the PCV valve. This prevents phenomena such as icing at the throttle, incomplete combustion, and worsened emissions, while also preventing blow-by gases from entering the atmosphere and avoiding oil deterioration. The working principle of the PCV valve is introduced as follows: 1. Introduction one: The PCV valve is a metering control valve installed between the crankcase ventilation system and the intake system. The PCV is controlled by vacuum, regulating the flow of oil fumes generated by the crankcase ventilation system into the intake system. The flow rate is higher when the engine operates at high speeds compared to low speeds. Additionally, when engine backfire occurs, the PCV valve should cut off ventilation to prevent crankcase explosion. 2. Introduction two: At the end of the engine's combustion process, some unburned mixture leaks into the crankcase under high pressure through the piston rings, which is referred to as "blow-by" in the industry. These blow-by gases can escape from the crankcase into the atmosphere, causing pollution. If not expelled, these blow-by gases can also dilute the engine oil, leading to premature oil deterioration and causing early wear to the engine.
