06ME844-Automotive Engineering |
PART – A |
UNIT I: |
ENGINE COMPONENTS AND COOLING & LUBRICATIONSYSTEMS: Spark Ignition (SI) & Compression Ignition (CI) engines,
cylinder – arrangements and their relatives merits, Liners, Piston, connecting
rod, crankshaft, valves, valve actuating mechanisms, valve and port timing
diagrams, Types of combustion chambers for S.I.Engine and C.I.Engines,
Compression ratio, methods of a Swirl generation, choice of materials for
different engine components, engine positioning, cooling requirements,methods of cooling, thermostat valves, different lubrication arrangements.
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UNIT II: |
FUELS, FUEL SUPPLY SYSTEMS FOR SI AND CI ENGINES: Conventional fuels, alternative fuels, normal and abnormal combustion,
cetane and octane numbers, Fuel mixture requirements for SI engines, types
of carburetors, C.D.& C.C. carburetors, multi point and single point fuel
injection systems, fuel transfer pumps, Fuel filters, fuel injection pumps and
injectors.
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UNIT III: |
SUPERCHARGERS AND TURBOCHARGERS: Naturally aspirated
engines, Forced Induction, Types pf superchargers, Turbocharger
construction and operation, Intercooler, Turbocharger lag.
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UNIT IV: |
IGNITION SYSTEMS: Battery Ignition systems, magneto Ignition system,
Transistor assist contacts. Electronic Ignition, Automatic Ignition advance
systems.
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PART – B |
UNIT V: |
POWER TRAINS: General arrangement of clutch, Principle of friction
clutches, Torque transmitted, Constructional details, Fluid flywheel, Single
plate, multi-plate and centrifugal clutches.
Gear box: Necessity for gear ratios in transmission, synchromesh gear boxes,
3, 4 and 5 speed gear boxes. Free wheeling mechanism, planetary gears
systems, over drives, fluid coupling and torque converters, Epicyclic gear
box, principle of automatic transmission, calculation of gear ratios,
Numerical calculations for torque transmission by clutches.
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UNIT VI: |
DRIVE TO WHEELS: Propeller shaft and universal joints, Hotchkiss and
torque tube drives, differential, rear axle, different arrangements of fixing the
wheels to rear axle, steering geometry, camber, king pin inclination, included
angle, castor, toe in & toe out, condition for exact steering, steering gears,
power steering, general arrangements of links and stub axle, over steer, under
steer and neutral steer, numerical problems, types of chassis frames.
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UNIT VII: |
SUSPENSION, SPRINGS AND BRAKES: Requirements, Torsion bar
suspension systems, leaf spring, coil spring, independent suspension for front
wheel and rear wheel. Air suspension system.
Types of brakes, mechanical compressed air, vacuum and hydraulic braking
systems, construction and working of master and wheel cylinder, brake shoe
arrangements, Disk brakes, drum brakes, Antilock –Braking systems, purpose
and operation of antilock-braking system, ABS Hydraulic Unit, Rear-wheel
antilock & Numerical Problems
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UNIT VIII: |
AUTOMOTIVE EMISSION CONTROL SYSTEMS: Automotive
emission controls, Controlling crankcase emissions, Controlling evaporative
emissions, Cleaning the exhaust gas, Controlling the air-fuel mixture,
Controlling the combustion process, Exhaust gas recirculation, Treating the
exhaust gas, Air-injection system, Air-aspirator system, Catalytic converter,
Emission standards- Euro I, II, III and IV norms, Bharat Stage II, III norms.
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REFERENCE |
TEXT BOOKS: |
1. Automotive mechanics, William H Crouse & Donald L Anglin,
10th Edition Tata McGraw Hill Publishing Company Ltd., 2007
2. Automotive Mechanics, S. Srinivasan, Tata McGraw Hill 2003.
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Reference Books |
1.Automotive mechanics: Principles and Practices, Joseph Heitner,
D Van Nostrand Company, Inc
2. Fundamentals of Automobile Engineering, K.K.Ramalingam,
Scitech Publications (India) Pvt. Ltd.
3. Automobile Engineering, R. B. Gupta, Satya Prakashan, 4th edn.
1984.
4. Automobile engineering, Kirpal Singh. Vol I and II 2002.
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