IC ENGINES
- 1. I.C Engines Presented by NAME : S.ARUNKUMAR DEPARTMENT : MECHANICAL ENGINEERING COLLEGE : SUDHARASAN ENGG COLLEGE .
- 2. What is i.c engine? An internal combustion engine (ICE) is a heat engine where the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. ... Working fluids can be air, hot water, pressurized water or even liquid sodium, heated in a boiler.
- 3. Classification Of I.C Engines The I.C engines are classified on the basis of: (i) Type of ignition (a) Spark ignition engines (S.I engines) (b) Compression ignition engines (C.I engines) (ii) Cycle of operation (a) Otto cycle engine (b) Diesel cycle engine (c) Dual cycle engine (iii) Number of strokes per cycle (a) Four-stroke cycle engine (b) Two-stroke cycle engine
- 4. (iv) Type of fuel used in engine (a) Petrol (or) gasoline (b) Diesel engine (c) Gas engine (d) Bi-fuel engine (v) Method of cooling (a) Air-cooled engine (b) Water-cooled engine (vi) Number of cylinder (a) Simple-cylinder engine (b) Multi-cylinder engine (vii) Lubrication system (a) Wet sump lubrication engine (b) Dry sump lubrication engine
- 5. (viii) Arrangement of cylinder (a) Horizontal engine (b) Vertical engine (c) V-type engine (d) Radial engine (e) In-line engine (f) X-type engine (g) H-type engine (ix) Speed of the engine (a) Low speed engine (b) Medium speed engine (c) High speed engine (x) Ignition (a) Carbureted type engine (b) Injection type engine
- 6. I c engine:
- 7. BASIC COMPONENTS OF I.C ENGINE • Cylinder • Cylinder head • Piston • Piston rings • Combustion chamber • Inlet manifolds and exhaust manifolds • Inlet and exhaust valves • Spark plug/fuel injector • Connecting rod • Crank and crank shaft • Gudgeon pin • Crank pin • Cam shaft • Cams • Crank case • Fly wheel
- 8. cylinder
- 9. Cylinder head • The function of cylinder head is to seal cylinder, form combustion space with piston, and bear the action of high temperature and high pressure gas.
- 10. Piston
- 11. Piston rings
- 12. Combustion chamber A combustion chamber is an enclosed space inside of a combustion engine in which a fuel and air mixture is burned. Burning fuel releases a gas that increases in temperature and volume. When you heat a gas, the atoms in the gas start bouncing off each other with more energy and vigor
- 13. Inlet manifolds and exhaust manifolds
- 14. Inlet and exhaust valves
- 15. Spark plug/ fuel injector
- 16. Connecting rod
- 17. Cams and Cam shaft
- 18. Crank and crank shaft
- 19. Gudgeon pin and crank pin Gudgeon pin • It is also called wrist pin or piston pin, which connects the small end of the connecting rod to the piston. Crank pin • Crank pin connects the big end of the connecting rod to the crank shaft.
- 20. Crank case
- 21. Fly wheel
- 22. Criteria S.I engine C.I engine Combustion process Ignition takes place by a spark generated by spark plug. Self ignition of the fuel take place due to high compression of air in chamber. Compression ratio 1 : 11 1 : 22 Suction Mixture of petrol and air in calculated ratio is drawn into cylinder. Only pure air is drawn into cylinder during suction stroke. Fuel Petrol Diesel Thermodynamic cycle Otto cycle Diesel cycle Weight of the engine Less because of lower compression ratio, cylinder size is small. High, engine size is large due to higher compression ratio. Efficiency Low because of lower compression ratio. High because of high compression ratio. Speed High because of lighter engine. Lower because of heavy engine.
Editor's Notes
- #4: Number of strokes per cycle Type of fuel used in engine Method of cooling Number of cylinder Arrangement of cylinder Speed of the engine Lubrication system Ignition By method of charging
- #5: Number of strokes per cycle Type of fuel used in engine Method of cooling Number of cylinder Arrangement of cylinder Speed of the engine Lubrication system Ignition By method of charging