Automobile Engines
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Automobile Engines Syllabus — Unit-wise Content
The official GTU curriculum for Automobile Engines (subject code 3150210) as prescribed for Auto · Semester 5 divides the course into 6 units, covering 46 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (3150210)Unit 1 Engine Construction and Operation
- 4-stroke enginesconstructional details
- working principle
- Otto cycle
- Diesel cycle
- valve timing diagrams and actual indicator diagram. 2-stroke engine construction and operation
- port timing diagrams
- comparison of four stroke and two-stroke engine operation
- Firing order and itssignificance
Unit 2 SI Engine Fuel System
- Carburettor working principle
- Requirements of an automotive carburettor
- acceleration and normal circuits of carburettors
- Maximum power devices
- constant choke and constant vacuum carburettors
- Fuel feed systems
- Mechanicalandelectricalpumps.MPFI systems for petrol
- Properties of SI engine fuels
Unit 3 CI Engine Fuel System
- Fuel Injection System: Requirements
- Air and solid injection
- function of components
- Jerk and distributor type Pumps.Unit injector
- Mechanical and Pneumatic governors
- Fuel injector-types of injection nozzle
- Spray characteristics
- pump calibration
- CRDI systems for diesel
- Properties of CI engine fuels
Unit 4 Cooling and Lubrication System
- Need for cooling system
- Types of cooling system
- Liquid cooled system
- Thermosyphon system, and Pressurecooling system
- Properties of coolants.Lubrication system
- Mist lubrication system
- Wet sump and dry sump lubrication
- Properties of lubricants
Unit 5 Combustion in IC (SI & CI) engines
- Combustion in ICengines
- stages of combustion
- flame propagation
- rate of pressure rise
- abnormal combustion
- Effect of engine variables and knock
Unit 6 Supercharging, Turbocharging and Scavenging
- Necessity and limitation of supercharging and turbocharging
- Charge cooling
- Types of superchargingandturbocharging
- relative merits
- Matching of turbocharger.Theoretical scavenging methods
- Scavenging pumps 06 Subject Code: 3150210 w.e.f
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