The engine is the most important part of a vehicle, in other words, it is its heart. For this reason it is composed piece by piece of particularly precise parts. Let's check and see what kinds of parts engines are composed of.
Cylinder block
This is the frame of the engine. A number of cylinders are arranged in the cylinder block, with the cylinder heads installed on the top surface and a gasket in between.
Piston
The pistons receive the pressure created by the combustion of the air fuel mixture and move vertically inside the cylinder. According to this vertical movement, pressure is transformed into movement, and that movement is transmitted to the crankshaft via the connecting rod.
Crankshaft
This changes the vertical movement of the piston (linear force) into rotational movement through a connecting rod.
Flywheel
This stores the power generated in the combustion stroke.
Of the four stroke in a 4 cycle gasoline engine, force is generated only in the combustion stroke, with the other three strokes operating by using the force generated in the combustion stroke.
For this reason, the flywheel is made of a heavy disc, so that the rotational force from the crankshaft can be converted into an inertial force and stored.
Cylinder head
Located above the cylinder block, the depression on its underside forms the combustion chamber with the cylinder.
The combustion chamber is the gap between the piston, cylinder block and cylinder head where the air-fuel mixture is take in, compressed and made to combust.
Operating valve mechanism
The cylinder heads of a 4-cycle engines are equipped with an intake valve and exhaust valve. The air-fuel mixture is introduced into the cylinder and combustion gas is emitted outside the engine.
The series of devices that open and close this valve at the appropriate intervals is called the operating valve mechanism.
Two rotations of the crankshaft (2 full motions of the piston) rotate the camshaft 1 time (each valve opens and closes once)
Oil pan
A section for collecting the engine oil, where one section is deeply dented and an internal partition is attached, so that even if the vehicle is at angle a sufficient amount of oil can be collected in the bottom of the oil pan.