What is Engine cylinder Block ?| Engine cylinder Block Full Details

What is Engine cylinder Block ?

Cylinder blocks are usually made of gray cast-iron cylinder blocks that the piston moves up and down. With the help of a connecting road and water passages in the cylinder block, it helps in lowering the temperature of the cylinder block. Water-cooled engines have a way around each cylinder, valve, and spark plug. The circulating water maintains the engine at its correct working temperature and avoids excessive expansion, expansion and therefore deformation ultimately preventing seizure of relative moving parts.

The cylinder block which is showing in the image is when the suction valve is opened in the internal combustion engine when the mixture of air and fuel is pulled into the cylinder. Piston Performs Reciprocating Motion
Cylinders are usually made from gray cast-iron and occasionally aluminum in addition to nickel and chromium in some blocks, using cast iron or steel sleeves for most engines,
Small engine cylinders are made of aluminum alloy, this metal is lighter and more efficient The liner is installed inside the big cylinder, which can be changed when it is rubbed. The upper part of the cylinder block is called the cylinder head. The cylinder head is done with valve, spark or fuel injector

These alloys have low coefficient of thermal expansion and high wear resistance.

There are three main parts of an automobile engine.

• Cylinder head
• Cylinder block
• crankcase
• Sump

In modern engines:- The cylinder block and crankcase  form a single casting which gives a rigid structure. Crankshaft bearings are inserted to give additional strength to the crankshaft and in some cases to support the bearings. Inside the crankcase in the cylinder block the crankshaft rotates 360 degrees, a separate aluminum crankcase will save weight as well as enable cheaper and faster replacement.

• cylinder in which pistons slide up and down
• Valve Opening Processes.
• To cool the cylinder block by the flow of coolant.

The structure of a cast iron is as follows.

Iron  =  95%

Carban  =  2.2%

Silicon  =  1.2%

Manganese =  063%

Sulphur  =  0.12%

Phosphorus  =  0.85%

A typical aluminum alloy composition for cylinders and pistons includes-

Aluminum  =  91%

Tin  =  2%

Copper  =  7%

Cylinder Block, Cylinder Head and Crankcase ->these three parts from the Foundation and main stationary body of the automobile engine. they serve as support and enclosure for moving parts. in modern engines the cylinder block end crankcase form a single casting which give a rigid structure. ribs are cast in the crank case to give it extra strength and to support the main and in some cases the camshaft bearings. the cylinder block may also have a separate crankcase for the crankcase, which is mainly confined to large engine and marine and stationary engine a separate aluminum crankcase would result in saving the weight as well as enable cheaper and quicker replacement.

cylinder liner

A cylinder liner is a cylindrical part to be fitted into an engine block to form a cylinder. It is one of the most important functional parts to make up the interior of an engine.
This is called Cylinder liner in Japan, but some countries(or companies) call this Cylinder sleeve. These are main functions of Cylinder Liners.

There are two types of cylinder liner

• Dry Liners:-

A dry liner is made in the shape of a barrel with a flange at the top that holds it in position in the cylinder block.
The entire outer surface of the dry liner is against the cylinder block casting and therefore has to be machined very precisely from the outside as well.
Thus, it is not in direct contact with cold water and hence is known as dry liner.

• Wet Liners:-

A wet liner from a complete cylinder barrel. it is provided with a flange at the top which fits into the groove in the cylinder block. at the bottom either the block or the liner is provided with grooves, generally three in numbers in which the packing ringh made of rubber are inserted. the liner is in direct contact with the cooling water and hence is known as well liner. the outer surface of the liner does not require accurate machining.

Engine Parts Names| इंजन के पार्ट्स के नाम

A cylinder Block consists of three parts:-

1. the cylinder in which the pistons slide up and down
2. the ports or opening for the valves.
3. the passenger for the flow of cooling water.

A typical aluminum alloy composition for cylinder and Piston consists of-

Piston ring

The piston ring is made of cast iron alloy in the grooves on the periphery of the piston. After fitting in, the circumference of the ring is adjacent to the wall of the cylinder. When the piston does motion, only the rings are worn in the piston, there are two types of rings, compression ring and oil control ring  compression  ring, crank the gas of high pressure. The oil control ring removes excess oil from the cylinder wall.

Connecting Rod  In Hindi

In the internal combustion engine, the connecting rod connects the crank shaft and the piston, and the expansion of the hot gases transfers the power from the piston to the crank shaft. The small end of the connecting rod connects the piston to the gudgeon pin and the large end of the connecting rod crank is connected to the pin, the connection rod is used to transmit the reciprocating motion of the piston to the crank shaft so that the crank shaft rotates, it is made of nickel steel. Crank Shaft

The use of Crank Shaft in lnternal combustion engine We change the reciprocating speed of the piston to the rotatory motion of the crank shaft by the crank shaft and connecting rod. The main part of the crank shaft consists of pin, wave, balancing load and main bearing jonals and The large part of the connecting rod is connected to the crank pin of the crank shaft and the distance to the center of the crank pin is called the crank area and the bearing in the crank case from which the crank shaft is supported, which is the end of the crank shaft in those main bearings. We call them journals when the number of bearings is more then the crank shaft moves well which reduces vibration and the front part of the crank shaft is fitted with a large nut, fan belt pulley and vibration damper for the handlebar and There is a flywheel on the rear, what is the strain?

Crank Case

 

In the internal combustion engine, the lower part of the cylinder block in the crank case is called the crank case, it acts as a housing for the crank shaft and cam shaft. It is made of gray cast iron and aluminum. The outer part of the crank case is called sump. It is made of aluminum or bolted to the crank case which is filled with lubricant.