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TURBOCHARGERTURBOCHARGER
Presented byPresented by ::
CHETHAN S A,
8th
Sem. Mechanical Engg.,
B.C.E – Shravanabelagola.
1
CONTENTSCONTENTS
1. Introduction
2. Parts of Turbocharger
3. Construction
4. Working
5. Turbocharger Lag
6. Advantages
7. ...
INTRODUCTIONINTRODUCTION
A turbocharger is a turbine driven device that increases an I.C
engine’s efficiency and power ou...
PARTS of TURBOCHARGERPARTS of TURBOCHARGER
 The different parts of turbocharger are as follows :
Exhaust gas turbine
In...
Cont...Cont...
5Fig. 1: Turbocharger of a single cylinder engine
CONSTRUCTIONCONSTRUCTION
 Turbine & compressor are coupled to the same shaft and are
mounted within the casing.
 Turbine...
WORKINGWORKING
 The exhaust gases from the engine enters in to turbine through
exhaust manifold.
 Exhaust gases strikes ...
Cont...Cont...
 The atmospheric air gets compressed by the compressor blades
The compressed air then enters in to the en...
Cont...Cont...
 The exhaust gases after rotating turbine blades leaves turbine
& ejected to atmosphere through muffler & ...
Cont...Cont...
10
Fig. 2: 3D view of turbocharger
TURBOCHARGER LAGTURBOCHARGER LAG
It is the time period required for the exhaust gases to accelerate
the turbine & compres...
ADVANTAGESADVANTAGES
Increases thermal efficiency and power output of the engine.
Deduce emission and thus reduce air po...
DISADVANTAGESDISADVANTAGES
It requires special exhaust manifold.
Blade erosion takes place due to entry of dust particle...
APPLICATIONSAPPLICATIONS
Petrol powered cars like Porsche, Chevrolet.
Diesel powered cars like Mercedes Benz.
 Motorcyc...
15
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Turbocharger

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Turbocharger

  1. 1. TURBOCHARGERTURBOCHARGER Presented byPresented by :: CHETHAN S A, 8th Sem. Mechanical Engg., B.C.E – Shravanabelagola. 1
  2. 2. CONTENTSCONTENTS 1. Introduction 2. Parts of Turbocharger 3. Construction 4. Working 5. Turbocharger Lag 6. Advantages 7. Disadvantages 8. Applications 2
  3. 3. INTRODUCTIONINTRODUCTION A turbocharger is a turbine driven device that increases an I.C engine’s efficiency and power output. Nearly 35% to 40% of heat energy supplied to engine goes in to exhaust and will be wasted. A part of this energy could be utilized to drive a gas turbine. Which in turn runs a compressor and hence results in supply of more air to the engine inlet. 3
  4. 4. PARTS of TURBOCHARGERPARTS of TURBOCHARGER  The different parts of turbocharger are as follows : Exhaust gas turbine Inlet air compressor Coupling shaft Inlet & exhaust manifold Intercooler Waste gate actuator 4
  5. 5. Cont...Cont... 5Fig. 1: Turbocharger of a single cylinder engine
  6. 6. CONSTRUCTIONCONSTRUCTION  Turbine & compressor are coupled to the same shaft and are mounted within the casing.  Turbine is attached to exhaust manifold while compressor is attached to inlet manifold of the engine. An intercooler is present in between the compressor and engine inlet. A waste gate actuator is connected to the exhaust manifold. An oil inlet & outlet is present in between the turbine and compressor for lubrication. 6
  7. 7. WORKINGWORKING  The exhaust gases from the engine enters in to turbine through exhaust manifold.  Exhaust gases strikes the turbine blade and thus rotates the turbine blade. Thus heat energy of exhaust gas is converted in to kinetic energy.  Since turbine and compressors are coupled to the same shaft as turbine rotates compressor also rotates. Thus rotating compressor sucks atmospheric air from air inlet.7
  8. 8. Cont...Cont...  The atmospheric air gets compressed by the compressor blades The compressed air then enters in to the engine inlet through inlet manifold. Since the temperature of compressed air is high (65-95˚c) an intercooler is provided in inlet manifold.  An intercooler reduce the temperature of compressed air & it works similar to radiator. Thus it maintains the density & quantity of compressed air entering into engine. 8
  9. 9. Cont...Cont...  The exhaust gases after rotating turbine blades leaves turbine & ejected to atmosphere through muffler & silencer. A waste gate is provided in exhaust manifold and is actuated by waste gate actuator. When large quantity of exhaust gas enters into exhaust manifold waste gate actuator opens the waste gate. Thus excess exhaust gas passes through the waste gate and required quantity of gas enters into turbine. Finally the gas from waste gate & turbine is ejected into atmosphere. 9
  10. 10. Cont...Cont... 10 Fig. 2: 3D view of turbocharger
  11. 11. TURBOCHARGER LAGTURBOCHARGER LAG It is the time period required for the exhaust gases to accelerate the turbine & compressor. It represents short delay period before the boost pressure increases. 11
  12. 12. ADVANTAGESADVANTAGES Increases thermal efficiency and power output of the engine. Deduce emission and thus reduce air pollutants to the atmosphere. Required quantity of air supply is obtained and thus complete combustion is possible. Minimizes fuel consumption rate . Proper air fuel mixture is obtained. 12
  13. 13. DISADVANTAGESDISADVANTAGES It requires special exhaust manifold. Blade erosion takes place due to entry of dust particles. Larger pumping elements or nozzles are needed. This overloads cams. Pressure ratio is high and it has to withstand high pressure. It is bulky and heavy. Poor response to load change. 13
  14. 14. APPLICATIONSAPPLICATIONS Petrol powered cars like Porsche, Chevrolet. Diesel powered cars like Mercedes Benz.  Motorcycles like Kawasaki. In trucks and tractors. In aircrafts. 14
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