S/NO
|
NAME OF THE PART
|
MATERIAL
|
FUNCTION
|
METHOD OF MANUFACTURING
|
1
|
Cylinder
|
Hard grade cast iron
|
Contains gas under pressure and
guides the piston.
|
Casting
|
2
|
Cylinder Head
|
Cast Iron or Aluminum
|
Main function is to seal the
working end of the cylinder and not to permit entry and exit of the gases on
overhead values engines.
|
Casting and forging.
|
3
|
Piston
|
Cast iron or Aluminum
|
It acts as a face to receive gas
pressure and transmits the trust to the connecting rod.
|
Casting and forging
|
4
|
Piston rings
|
Cast iron
|
Their main function is to provide
a good sealing between the piston and cylinder.
|
Casting
|
5
|
Gudgeon pin
|
Hardened Steel
|
It supports and allows the
connecting rod to swivel.
|
Forging.
|
6
|
Connecting Rod
|
Alloy steel, for small engines the
material may be aluminum
|
It transmits the piston load to
the crank , causing the later to turn, thus converting the reciprocating motion
of the piston into rotary motion of the crankshaft.
|
Forging.
|
7
|
Crankshaft
|
In generally the crankshaft is
made up of high tensile forging , but special cast irons are sometimes used
to produce a light weight crankshaft that does not required a lot of
machining.
|
It converts the reciprocating
motion of the piston into the rotary motion.
|
Forging.
|
8
|
Main Bearings
|
The typical bearing half is made
of steel or bronze back to which a lining of relatively soft bearing material
is applied.
|
The function of bearing is to
reduce the friction and allow the parts to move easily.
|
Casting
|
9
|
Flywheel
|
Steel or cast iron
|
In engines it takes care of
fluctuations of speed during thermodynamic cycle.
|
Casting
|
10
|
Inlet Values
|
Silicon chrome steel with about 3%
of carbon.
|
Admits the air or mixture of air
and fuel into the engine cylinder
|
Forging
|
11
|
Exhaust Values
|
Austenitic Steel
|
Discharges the product of
combustion
|
Forging
|
12
|
Fly wheel
|
Cast Iron
|
A Flywheel is secured on the
crankshaft. The main function of flywheel is to rotate the shaft during
preparatory stroke. It is also crankshaft rotation more uniform.
|
Casting.
|
13
|
Spark Plug
|
Manufacturing Method of spark plug
is little bit different from other parts of engine. Each major element of the
spark plug—the center electrode, the side electrode, the insulator, and the
shell—is manufactured in a continuous in-line assembly process. Then, the
side electrode is attached to the shell and the center electrode is fitted
inside the insulator.
|
The main function of a spark plug
is to conduct the high potential from the ignition system into the combustion
chamber.
It provides the proper gap across which spark is produced by applying high voltage , to ignite the mixture in the ignition chamber. |
Many different parts are assembled
into a single unit.
|
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Thursday 15 February 2018
IC Engine Major Parts and Its Function, Materials ,Manufacturing Method
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