GENERAL Master Copy for IRTMTCALD by IRICEN INTERNAL

GENERAL Master Copy for IRTMTC/ALD by IRICEN

INTERNAL COMBUSTION ENGINE (I. C. ENGINE)

HISTORY AND DEVLOPMENT • In the year of 1860 a French engineer J. J. E. LEVOSIER made first I. C. engine. • Another modified I. C. Engine was represented by Doctor N. A. Otto in 1876. In this engine mixture of air and petrol was compressed. • In the year 1892 Doctor Rudolf diesel made a diesel engine.

I C ENGINE: Engine is a device which converts one form of energy in to another form. Very Broad Definition. Ex: - Heat Engine, Alternator. Motor etc. HEAT ENGINE: Converts heat energy in to mechanical energy. Heat energy is obtained from combustion of fuel. Chemical energy in fuel is converted in to heat. Ex: I. C. Engine, E. C. Engine. INTERNAL COMBUSTION ENGINE: - Those heat engines in which fuel is burnt inside the engine cylinder is called internal combustion engine. EX : - Diesel engine, Petrol engine, Gas engine. EXTERNAL COMBUSTION ENGINE: - Those heat engines in which fuel is burnt out side the engine cylinder is called external combustion engine. EX: - Steam engine, Steam turbine.

ADVANTAGES • Compact. • Easy Starting • Less Maintenance Cost. • Very high thermal efficiency. • Weight-power ratio is very less. • Can generate much more r. p. m. then E. C. Engine. • Suitable for motive power due to their light weight.

DISADVANTAGES • I. C Engine creates more pollution as compared to E. C. Engine. • E. C. Engines are double acting engines while I. C. engines are single acting engines. • I. C. Engines can not develop as much power as compared to steam engines (E. C. Engines)

CLASSIFICATION OF I. C. ENGINES 1. On the basis of fuel used: (i) Petrol Engine (ii) Diesel Engine (iii) Gas Engine 2. On the basis of no. of strokes per working cycle: (i) 2 - Stroke Engine. (ii) 4 - Stroke Engine 3. On the basis of Method of ignition of fuel: (i) Spark ignition engine (ii) Compression ignition engine

CLASSIFICATION OF I. C. ENGINES 4. On the basis of method of cooling: (i) Air Cooled engine (ii) Water cooled engine. 5. On the basis of no. of cylinders: (i) Single cylinder engine (ii) Multi-cylinder engine. 6. On the basis of arrangement of cylinders: (i) Inline Engine (ii) V- Engine

MAIN SYSTEM OF I. C. ENGINE 1. Air supply system. 2. Fuel supply system. 3. Lubricating system. 4. Cooling system.