deepak tripathi
Transcript of deepak tripathi
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By-DEEPAK TRIPATHI
M.E(5th sem )
0938140018
Krishna institute of management &technology, Moradabad .
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1)The turbo charger is an amazing piece of machinery which is used to
boost an engine's horsepower without significantly increasing its weight.
2)A turbocharger is a device fitted to internal combustion engines to increase
power.
3) The turbocharger is simply a device to force more air into the engine.
4)Turbochargers come in many different sizes. Many have been used as the basis
for home made gas turbine engines.
5) The turbocharger uses the exhaust flow from the engine to spin a turbine,
which in turn spins an air pump.
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4) The first turbocharged automobile engines came from General Motors
in 1962.
1) The turbocharger was invented by Swiss engineer Alfred Bchi, in
1905 .
3) In 1918, General Electric engineer intalled a turbo to V12Liberty
aircraft engine.
2)1915 First turbo diesel engine.
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MAJORCOMPONENTS
1)Turbocharger.
2)Aftercooler.
3)Aircleaner.
4)Turbine & compressor.
5)Inlet & Exhaust.
6)Centre housing.
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The two chambers
contain a turbinewheel and acompressor wheelconnected by a shaftwhich passesthrough the center
housing.
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In an internal combustion engine
where there is a need to increase the
power, a turbocharger comes in
application. In order to accomplish
this, the turbocharger increases the
mass flow rate of air entering the
engine by the turbine action driven by
its exhaust. It is widely applied in
aircrafts, automobiles and
motorcycles.1)It consistsofa turbine and acompressoron a sharedshaft
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3) When the exhaust gasses enter, thefan rotates which drives a compressor.
4)Air is then squeezed by the
compressor before being delivered to
the engine.
5) Science air is compressed, the
engine could then take in greateramounts of air to the cylinders. The
normal air pressure is at 14.7 psi and
there is a limit to the pressure
difference across the intake valves
resulting in a limited air mass flow
rate.
6)Due to greater amount of air entered more fuel is burned which ultimately leads to increase in
power and torque.
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1)Normalize Air Supply: It means keeping air supply the same as is normal for anaturally aspirated engine at sea level.When engines operate at altitudes above sea level, the airbecomes less dense, and the turbocharger is needed gather in more of the thinner air. If we don'tnormalize, we must decrease fuel settings as the air becomes less dense to avoid overfueling theengine. Thus, normalizing allows engines to develop normal horsepower over abroad range ofaltitudes.
2)BoostAir Supply: The second function of a turbocharger is boosting air supply togive the engine more than normal oxygen. This enables increased fuel settings while stillproviding better combustion and quieter exhaust. Improved combustion means not only better
fuel economy, but also cleaner exhaust emissions.
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a) Turbochargers are most commonly used on gasoline
engines in high-performance automobiles and diesel engines
in transportation and other industrial equipment.
b) It helps in gaining more power and increase engine efficiency without
enlarging the powerplant.
c) Mechanical andthermal efficiencies areimproveddueto less
cylinders, greater airsupply anduseofexhaust gasesrespectively.d) Less moving parts as compared to other engines.
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Exhaust volumeincreases
Turbo begins to spinfaster
Increased compressordischarge
MAP increasesTURBO
COULD EXCEED MAXIMUM ENGINE
OPERATING LIMITS!
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.Turbochargers can reduce exhaustand air intake noise.
Turbochargers are able to increaseengine durability.
Increased air/fuel ratio from
turbocharging improves fuel economy.
Turbochargers are important to reducing
engine emissions.
Turbochargers increase an engines torqueoutput.
Increases thermal efficiency.
Less moving parts.
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1)Insufficient lubrication
2)Foreign object damage
3)Extreme temperatures
4) High Exhaust Temperature
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1)Turbochargers are still the most cost- effective way to increasehorsepower.
2)Turbochargers are good for high end hp.
3)A turbocharger is probably the most effective way to increase theperformance of a given displacement engine, and will yield the highest
specific output and best power to weight ratio.
4)They yield the highest specific output and best power to weight ratio.
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ThankYou