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SYLLABUS

UNIT-I

I.C. ENGINES Definition of Engine and Heat Engine, I.C Engine Classification – Parts of I.C. Engines, Working of I.C. Engines, Two Stroke & Four Stroke I.C. Engines SI & CI Engines, Valve and Port Timing Diagrams.

UNIT-II

Fuel System S.I Engine : Fuel Supply Systems, Carburettor types, Air Filters, Mechanical and Electrical Fuel Pump – Filters– Gasoline Injection Systems. Cooling & Lubrication Systems: Cooling Requirements, Air Cooling, Liquid Cooling, Thermosyphon, Water and Forced Circulation System; Lubrication Systems-Flash, Pressurized and Mist Lubrication. Ignition System : Function of an Ignition System, Battery coil Ignition System, Magneto Coil Ignition System, Electronic Ignition System using Contact Breaker, Electronic Ignition using Contact Triggers – Spark Advance And Retard Mechanism

UNIT-III

Fuels and Combustion S.I Engine Normal Combustion and Abnormal Combustion – Importance of Flame Speed and Effect of Engine Variables – Type of Abnormal Combustion, Pre-Ignition and Knocking (Explanation) – Fuel Requirements and Fuel Rating, Anti Knock Additives, Combustion Chambers. C.I Engines Stages Of Combustion – Delay Period and Its Importance – Effect of Engine Variables – Diesel Knock– Combustion Chambers (DI And IDI), Fuel Requirements and Fuel Rating.

UNIT-IV

Testing and Performance Parameters of Performance - Measurement of Cylinder Pressure, Fuel Consumption, Air Intake, Exhaust Gas Composition, Brake Power – Determination of Frictional Losses and Indicated Power – Performance Test – Heat Balance Sheet and Chart

UNIT-V

Air Compressors Reciprocating Compressors, Effect of Clearance Volume in Compressors, Volumetric Efficiency, Single Stage and Multi Stage Compressors, Effect of Inter cooling and Pressure Drop in Multi - Stage Compressors, Problems Related to Reciprocating Compressors, Working principles of Roots blower, Vane type Blower, Centrifugal Compressor - Axial Flow Compressors, Working principle of rotary compressors.