What is a crankcase emission control?
To prevent crankcase emissions, your car is equipped with a Positive Crankcase Ventilation (PCV) System which routes blowby gases from the crankcase, through the PCV valve and intake manifold, into the combustion chamber.
Why is a crankcase ventilation control required?
A crankcase ventilation system removes unwanted gases from the crankcase of an internal combustion engine. Early engines released these gases to the atmosphere simply by them leaking through the crankcase seals.
How do you reduce crankcase emissions?
Filtered gases are returned to the intake system, balancing the differential pressures involved. Typical systems consist of a filter housing, a pressure regulator, a pressure relief valve and an oil check valve. These systems greatly reduce crankcase emissions.
Are there any European regulations for crankcase ventilation?
In Europe, control of crankcase emissions from heavy-duty diesel engines will likely be introduced with Euro VI regulations. Blowby Emission Control. PM emission control is one of the most important functions of modern crankcase ventilation systems.
Can a crankcase be used as a pollution control system?
This presents no problem as long as the vapor volume is minimal. However, when the crankcase vapor becomes excessive it is forced back through the vented oil cap and into the atmosphere. As a result, The open (PCV) system, is not completely effective as a pollution control device.
What should I do about my positive crankcase ventilation?
If the (PCV) valve is sticking or if there is evidence of sludge, the valve should be replaced. Clean all the hoses and fittings. Replace any cracked or broken hoses. Insure the system has an air-tight seal. Finally, Proper servicing of the Positive Crankcase Ventilation (PCV) system will help reduce overall vehicle emissions.
What is the function of a crankcase ventilation system?
PM emission control is one of the most important functions of modern crankcase ventilation systems. One of the system components is the separator, where particles and oil mist are removed—often with better than 90% efficiency—from the crankcase ventilation gases.
How does the crankcase emissions control system work?
Your crankcase emissions control system is responsible for maintaining positive pressure inside the crankcase. The system moves exhaust gases from the crankcase and through the intake so that they’re re-burned. This not only reduces emissions, but boosts fuel economy.
What does a closed crankcase ventilation system do?
The closed system prevents vapor, whether normal or excessive, from reaching the open atmosphere. The closed system is very effective as an air pollution control device. The Positive Crankcase Ventilation (PCV) Valve Commonly referred to as the (PCV) system the flow control valve is the most important part.
If the (PCV) valve is sticking or if there is evidence of sludge, the valve should be replaced. Clean all the hoses and fittings. Replace any cracked or broken hoses. Insure the system has an air-tight seal. Finally, Proper servicing of the Positive Crankcase Ventilation (PCV) system will help reduce overall vehicle emissions.
This presents no problem as long as the vapor volume is minimal. However, when the crankcase vapor becomes excessive it is forced back through the vented oil cap and into the atmosphere. As a result, The open (PCV) system, is not completely effective as a pollution control device.