Engines
Engine is a machine
which converts chemical energy into mechanical energy to done some work.
Here chemical energy
means energy which is produced by combustion of fuel like gas, petrol, diesel
or etc..
Two types of engines are:
Now days engines are
used in many vehicles which are suppose to petrol, diesel or etc
To carry out that type
of usage there are wide range of engines due to its output capacity or power.
So, let us learn about
engine
The main parts of the
engine are shown as below.
1. Cylinder
Cylinder is the main
part of the engine. Energy is produced inside the cylinder by combustion of
fuel. The inside part of the engine is known as bore. During
combustion of fuel there are high temperature and high pressure so this part of
engine must be cool. So the power is developed in the cylinder. To prevent from
the wear it gets tight sleeve inside the cylinder.
2. Cylinder head
As the name
suggests cylinder head is the cover of the cylinder it provides space for Valve
mechanism, injector and spark plug.
3. Spark plug
Spark plug is placed in
the cylinder head. Which is used for spark air and fuel mixture with high
intensity in petrol engines?
4. Fuel injector
Fuel injector is used to
spray diesel under high pressure at the end of compression
stroke. Fuel injector is only used in diesel engines.
5. Piston
The piston is
cylindrical plunger reciprocating inside cylinder .piston
plunge continues when engine is running by pressure of combustion fuel. Piston
is connected to connecting road to the crank. Piston rings are provided on the
piston.
6. Piston rings
Piston rings are
provided on piston to gas tight joint between piston and cylinder. Piston rings
are arranged for make engine more optimize
7. Connecting road
The main work of the
connected road is to convert reciprocating motion of piston into rotational motion
which is connection between piston and crank?
8. Crank
Crank is a mechanism
which moves in rotational motion by connecting connected road and crank
shaft.
9. Crank shaft
Crank shaft is rotating
by pressure of combustion of fuel which is transmitted over connected road and
then cranks which is directly connected to crank shaft. Crank is rotating
about axis of the crank shaft.
10. Valves
Valves are the mechanism
for control both intake and exhaust of the gases from the cylinder. Both valves
are controlled by valve operating mechanisms.
11. Flywheel
It is mounted on the
crank shaft of the engine. It optimizes cyclic variations.
12. Fuel pump
Which is directly
connected to the injector for providing and controlling the quantity of diesel
with more pressure to inject in cylinder? Which is used in only diesel engines?
13. Carburetor
Carburetor is used in petrol
engines to making required mixture of petrol and air.
14. Crankcase
Crankcase is serving as
enclosure of the crank shaft.
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