Hello reader, In this article, we are going to discuss various parts of the Engine and their function in detail.



#1. Cylinder Block:

Cylinder Block is the main part of the IC (Internal Combustion) engine. It is the part where all the functions of the engine take place inside it, such as intake, Suction, Compression, Combustion, Exhaust, etc.
The function of the cylinder in IC engines is to hold the fuel and guide the piston.

The cylinders are made of Cast iron and Cast steel by the process of casting to handle all the temperature and pressure which is generated after the combustion of fuel.

So the cylinder is designed in such a way that its compressive strength is high. It also requires cooling in the engine cylinder because of high pressure and temperature.



#2. Cylinder Head:
The cylinder head is the top cover of the engine cylinder which covers the cylinder from the topside to seal the cylinder and does not give a permit to air and gas to enter and exit from the system.The head is made as per design requirements by cast iron or aluminum by the manufacturing process of forging or casting.

The cylinder head consists above the cylinder block and contains various components such as a spark plug in a petrol engine, inlet valve, exhaust valve, and injector for fuel supply in case of a diesel engine.

For proper leakproof between cylinder and cylinder head, an asbestos packing and metal gasket are provided.



#3. Piston:
A Piston slides inside the cylinder in reciprocating motion and transfers mechanical energy to the crankshaft with the help of connecting rod.

The piston is designed in such a way that it is strong, light, and sufficient to handle the pressure and temperature which is generated after the combustion of fuel.
The piston is made up of cast iron or sometimes made of aluminum alloy.


4. Piston Rings:
The piston rings are used to provide the sealing effect between the cylinder and the piston. It helps to do not leak the engine’s combustion gas and bypass the piston and also helps to overcome the friction around the piston.

Piston rings are made up of cast iron and alloy cast iron. It is of two types:

1.Compressor Ring (Pressure Ring)

2.Oil Controller Ring


Compressor Ring transfers heat from the piston to the cylinder liner and it is inserted into the top grooves of the piston. Compressor rings are also used to overcome the side thrust over the piston which causes fluctuations.

The oil controller ring maintains the proper lubrication between the cylinder and the piston and is placed under the pressure ring. it also maintains access to lubrication.


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