methods for run the supercharger in IC Engine

1. Internal Combustion Engine
Methods of Supercharging
Prepared by:-
150053119008-Dharmajeet Jadeja
150053119009-Bhavesh Katariya

2. Methods of Supercharging:-
• Compressor driven by engine
• Compressor driven by turbine
• Compressor driven by external source of
power
• Compressor driven by engine shaft and free
turbine
• Direct coupling between engine, compressor
and turbine

3. 1)Compressor driven by engine
• In this arrangement, the compressor is driven by
engine with help of gearing or belt drive, a
certain engine output is used to run the
compressor as shown in fig. In this case, net
output of supercharged engine is greater than
gross output of naturally aspirated engine. The
net output increase due to supercharging is
obtained by subtracting this power from the
gross output. Air cooler is used after compressor
to reduce the temperature of air: therefore,
further density of air is increased.

5. 2)Compressor driven by turbine
• In this arrangement, the compressor is driven
by turbine which run with help of exhaust
gases coming from engine as shown in fig. In
this case engine output is not utilized to drive
to drive the compressor, but the exhaust
energy of the engine is used to run the turbine
which is coupled to compressor. There is no
mechanical connection between engine and
supercharger. This arrangement is also called
turbo-chargered.

7. 3)Compressor driven by external source of
power
• In this arrangement, the compressor is neither
driven by engine nor turbine, but compressor
is separarately driven by external power
source as shown in fig.

9. 4)Compressor driven by shaft and free
turbine
• In this arrangement, power produced by
engine is utilized only to run the compressor
as shown in fig. the exhaust gases coming
from engine is utilized to run the turbine. The
power produced by turbine is used for
external load. This arrangement is also known
as generator type supercharging.

11. 5)Direct coupling between engine,
compressor and turbine
• In this arrangement, the compressor, engine
and turbine all are coupled together with help
of gearing as shown in fig. In this case, If the
turbine output is not enough to run the
compressor during the part load on engine
power takes care of the remaining load of
compressor. In addition to this an extra power
from the turbine can be fed to the engine.

13. THANK YOU