Crankcase ventilation and PCV filter from K&N
Crankcase ventilation, also known as crankcase ventilation system or crankcase breathing system, is a part of a car engine system that controls the pressure inside the crankcase. The crankcase ventilation system is designed to remove excess pressure that builds up in the crankcase during operation, as well as to prevent the accumulation of harmful fumes and gases.
When the engine is running, gases are produced that can enter the crankcase through the movement of the pistons. Without proper ventilation, this can create excessive pressure and potentially damage seals, gaskets, and other parts of the engine.
The crankcase ventilation system works by directing these gases and fumes away from the crankcase and into the intake system or exhaust system, where they are burned or safely discharged.
There are various designs of crankcase ventilation systems, including positive crankcase ventilation (PCV) systems and ventilation hoses that connect the crankcase to the intake manifold or exhaust system.
Proper functioning of crankcase ventilation is crucial for maintaining engine health and performance, as well as for reducing vehicle emissions. Regular maintenance and inspection of the crankcase ventilation system are recommended as part of the car's service schedule.
PCV filter
A crankcase ventilation filter, also known as a crankcase breather filter or PCV (Positive Crankcase Ventilation) filter, is a component of a car's crankcase ventilation system. Its primary function is to filter the air circulating through the crankcase ventilation system and prevent contamination or impurities from entering the engine.
PCV filters are typically located in the crankcase ventilation hose, which is responsible for directing excess gases and vapors from the crankcase to the intake manifold or intake system. This helps reduce harmful emissions and maintain engine health.
The filter is designed to capture particles, oil contaminants, and other pollutants that may be present in the crankcase ventilation gases. This helps prevent clogging of the ventilation passages and protects the engine from damage caused by contamination.
Regular replacement of the crankcase ventilation filter as part of the car's service program is recommended to ensure optimal performance and extend the engine's lifespan.