 |
| Home | About Us | Systems | Auto Movers | Safety | History | Contact Us |
|
Automover
Parts >> Auto
Mobile Systems >> Auto
Transport Exhaust System >> Auto Mobile PCV Valve
Automobile PCV ValveThe process of combustion forms numerous gases
and vapors; many of them quite corrosive. Some of these gases get
history the piston rings and into the crankcase.
If left in the crankcase, these substances will
cause all kinds of bad things (rust, corrosion, and formation of
sludge), so they have to be removed. Back in the old days, they
used to be deserted out into the atmosphere through a tube. Once
we realized what problem pollution was in the sixties, the
PCV (Positive Crankcase Ventilation) system was urbanized
to take the place of the old "dump tube."
The PCV system uses a hose associated between the engine and the
intake multiple to draw these gases out of the engine's crankcase
and back into the cylinders to burn with the usual fuel. The only
problem to solve is how to keep these gases from going willy-nilly
into the various and upsetting the required air-fuel ratio.
The solution to this dilemma is the PCV valve. The PCV valve controls the discharge of crankcase gases and vapors to the intake manifold. The valve is kept blocked by spring action when the engine is at rest. When the engine is organization normally, the low vacuum it creates allows the control device to open and release crankcase vapors and gases into the intake manifold for burning. If the engine is idling or you are slowing down, the void level rises and pulls the valve plunger into the valve opening. This partially blocks off the gap so that only a small amount of vapors and gases could be drawn into the intake manifold. One really comforting feature of the PCV valve is its behavior in the event of a backfire. If your car backfires in the manifold, the pressure makes the spring close the valve totally. With the valve closed, there is no possibility that the flame can move into the crankcase and reason an explosion.
|
|
|