Concept in Definition ABC

A quick, cold and concise description from valve tells us that it is a device that basically regulates the passage of liquids and / or gases between different ducts.

If we have to sharpen our eyes a little and refer specifically to what he does to the car engine, then we will say that A valve is effectively a tap clearly shaped like a nail with a large head, the main function of which is to manage income and egress of gases from cylinder. In short, the valve in a car engine is an integral part of the distribution system.

To be more specific we will say that the valve in a vehicle that has a combustion internal is the in charge of allowing the mix to enter (fuel / air) or simply air, as the case may be, to the combustion chamber and allow the gases that burn after the same combustion to escape.

In a four-stroke engine, the first of the movements is that of admission, which causes the valve (from admission) opens and, given the suction exerted by the piston in its downward stroke, makes it possible to enter a mixing volume equal to the

displacement or piston stroke. It closes (the valve) when the piston reaches its lower maximum point, in the same way that the piston does scape valve during the compression process (second time).

The third time is that of the ignition and the expansion that when it is ending gives rise to the fourth time, that is, the exhaust, in which the valve of the same name it opens allowing the expulsion of the burned gases. So the four times end when the valve exhaust closes.

Valve Topics