haavintage.blogg.se - Ibternal combustion 4 stroke gad

During this process inlet valve is opened and exhaust valve remains closed.Īfter the intake stroke, the piston moves down to BDC and the inlet valve gets closed. It is the initial stroke of the cycle in which piston moves down from TDC to BDC, creating suction for sucking of air-fuel mixture from inlet valve into the cylinder. Let s move further and discuss these strokes or process in detail: In this type of engines the compressed fuel-air is ignited by itself.

Four stroke compression ignition engines:.

In this type of engines the compressed fuel-air is ignited with the help of spark plug. The four strokes of four stroke engine are:ĭepending on type of ignition these are of two types: They are type of internal combustion engine in which one cycle gets completed in four strokes. Now, moving on to the main topic i.e., four stroke engines When the piston is in its maximum position i.e., at TDC the volume occupied by air fuel mixture between the cylinder end and piston head is known as clearance volume. Stroke in simple words is nothing but distance moved by the piston from BDC to TDC or vice versa. Similarly it is the maximum position of the piston in the cylinder. In simple words it is the minimum position of the piston in the cylinder.

Now before we move onto the main topic, I would like you to get well-worn with certain terms. As the name itself describes that, it is a type of engine in which combustion takes place in a sealed chamber knew as combustion chamber.