Taaaaaaba ...... Auto mechanics .......

Continued:: How can increase the capacity of the engine:::


Volumetric efficiency:

It must be noted that, despite the proven capacity of the engine torque varies according to the speed of rotation of the engine due to the change in volumetric efficiency (the degree of filling cylinders and air-fuel mixture). Known as the volumetric efficiency (the efficiency of fullness) Volumetric Efficiency; as the ratio between the volume of cargo entering the engine to engine capacity, or volume of cargo entering the cylinder to cylinder capacity, which is usually in the range of 80% to 90%.



Volumetric efficiency (the efficiency of fullness) = volume of air (charge) Actual inside the cylinder (engine) ÷ volume of the cylinder (engine) The efficiency of filling the slot gorge, and the speed of rotation of the engine, and the form and dimensions of the manifold, exhaust and valve opening size and the timing of the valves, the valves are open.



Slow speeds in the piston speed is slow, and the dislocations inside the cylinders and manifold is small and therefore the amount of mixture entering the cylinders are few, and the efficiency of the fullness of a few. With the increase in speed increases the amount of fuel entering the cylinders, and increasing the efficiency of fullness with increased speed.

But with the continued increase in engine speed result in a stampede for the passage of the mixture of slots valves to reduce the amount of fuel entering the cylinders (this is called strangulation and the inability of the engine to breathe breathe) When and by high-speed low efficiency of fullness. ...............