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2. SUPERCHARGER
AND
TURBOCHARGER

3. INTRODUCTION
• The power out put of an engine depends upon the
amount of air inducted per unit time and the degree of
utilization of this air, and the thermal efficiency of the
engine.
• The range of supercharger extends across engine
power of from 46 %.
• The range of turbochargers extends across engine
power rating from 400 to 10,000 kW.

4. Tow possible methods utilized to increase the
air consumption of an engine are as follows:
Increasing the piston displacement: This increases the
size and weight of the engine, and introduces additional
cooling problems.
Increasing the density of the charge: This allows a
greater mass of the charge to be inducted into the same
volume.

5. SUPER CHARGER
•Deffinition:- Power for the supercharger can be provided
mechanically by means of a belt, gear, shaft, or chain connected
to the engine’s crankshaft.
•A Supercharger is run by the mechanical drive, powered by
engine power.
• The compressor is used before the intake valve and
compressor shaft rotating by the engine power. That is known
as supercharger.

6. Working of Supercharger:-
• A Supercharger is an air
compressor that increases
the pressure or density of
air supplied to an internal
combustion engine. This
gives each intake cycle of
the engine more oxygen,
letting it burn more fuel
and do more work, thus
increasing power.

7. Advantage and Disadvantage
of Supercharger:
Advantage:-
• The more increase the pressure of the intake air above
the local atmospheric pressure, the more power the
engine produces.
• The biggest advantage of having a supercharger is the
increased horsepower.
• Power delivery is immediate because the supercharger
is driven by the engine’s crankshaft.

8. Disadvantage:-
• Less efficient: The biggest disadvantage of
superchargers is that they suck engine power simply to
produce engine power.
• Superchargers are significantly less efficient than
turbochargers.
• Noise
• Cost high

9. TURBOCHARGER
Diffinition:-
• A turbocharger is a special type of supercharger in which a gas
turbine is used to raise the pressure of air or air-fuel mixture.
• Turbochargers are powered by the kinetic energy of exhaust
gases from the engine.
• The compressor is used in the exhaust valve and compressor
shaft rotating by the exhaust gases. The compressor is provide to
the engine of power. That is known as turbocharger.

10. Working of Turbocharger:
A Turbocharger uses
the otherwise unused
energy in the exhaust
gases to drive a turbine
directly connected by a
co-axial shaft to a rotary
compressor in the air
intake system.

11. • A turbocharger is a small radial fan pump driven by the
energy of the exhaust gases of an engine.
• The compressor shaft is rotating by the exhaust gases
and take air-fuel mixture from surrounding and then
provide pressure increased of air-fuel mixture to the
combustion chamber through the intake valve.
• The turbine converts exhaust to rotational force, which
is in turn used to drive the compressor.

12. FIG.3

13. Where the turbocharger is located in
the car
FIG. 5

14. Advantage and Disadvantage
of Turbocharger
Advantage:-
• Power vs size: allows for smaller engine displacements to produce
much more power relative to their size.
• Good performance in high load.
• More suitable for high output engine.
• Significant increase in horsepower.

15. Disadvantage:-
• Cost and complexity
• Detonation
• Space
• Turbo lag
• Turbocharger maintenance is high.

16. THANK YOU