1. Fluid Mechanics
2. Engine

INTERNAL COMBUSTION ENGINE PERFORMANCE PARAMETERS goto desijugaad.net fro downloading this ppt.1.ENGINEPERFORMANCEPARAMETRS.Energy Flow in engine.IndicatedThermal Efficiency■ ƞ𝒊𝒕𝒉 =𝑰𝒏𝒅𝒊𝒂𝒄𝒕𝒆𝒅 𝑷𝒐𝒘𝒆𝒓 (𝑲𝑾)𝑬𝒏𝒆𝒓𝒈𝒚 𝒐𝒇 𝒇𝒖𝒆𝒍 𝒑𝒆𝒓 𝒔𝒆𝒄𝒐𝒏𝒅■ Indicated Power (IP) – power produced in cylinder■ IP (KW) =𝑷 𝒊𝒎𝒆𝒑×𝑳×𝑨×𝒏×𝒌𝟔𝟎×𝟏𝟎𝟎𝟎n =𝑵𝟐k= no. Of cylinders■ 𝑬𝒏𝒆𝒓𝒈𝒚 𝒐𝒇 𝒇𝒖𝒆𝒍 𝒑𝒆𝒓 𝒔𝒆𝒄𝒐𝒏𝒅 = 𝒎 × 𝑪𝒂𝒍𝒐𝒓𝒊𝒇𝒊𝒄 𝒗𝒂𝒍𝒖𝒆 𝒐𝒇 𝒇𝒖𝒆𝒍 𝒊𝒏 𝑲𝑱/𝑲𝒈.BrakeThermal Efficiency■ ƞ𝑖𝑡ℎ =𝑩𝒓𝒂𝒌𝒆 𝑷𝒐𝒘𝒆𝒓 (𝑲𝑾)𝑬𝒏𝒆𝒓𝒈𝒚 𝒐𝒇 𝒇𝒖𝒆𝒍 𝒑𝒆𝒓 𝒔𝒆𝒄𝒐𝒏𝒅■ Brake Power (BP) - power available at crankshaft■ IP (KW) =𝑃 𝑏𝑚𝑒𝑝×𝐿×𝐴×𝑛×𝑘60×1000n =𝑁2k= no.

Today we will learn about main parts of an engine or more appropriately an IC Engine. An internal combustion engine is a heat engine in which combustion (burning of fuel) takes place inside the cylinder of the engine. A high temperature and pressure force generates after burning of fuel.

This pressure force use to move the vehicle or rotate wheels by use of some mechanism. In an engine many parts work together to achieve the goal of converting chemical energy of fuel into mechanical energy. These parts are bolted together and the combination of all these parts is known as engine. Today I am going to tell you about these parts and how they work so you can know the basic of automobile engine. Cylinder is the main body of IC engine.

Cylinder is a part in which the intake of fuel, compression of fuel and burning of fuel take place. The main function of cylinder is to guide the piston. It is in direct contact with the products of combustion so it must be cooled. For cooling of cylinder a water jacket (for liquid cooling used in most of cars) or fin (for air cooling used in most of bikes) are situated at the outer side of cylinder.

At the upper end of cylinder, cylinder head and at the bottom end crank case is bolted. The upper side of cylinder is consists a combustion chamber where fuel burns. To handle all this pressure and temperature generated by combustion of fuel, cylinder material should have high compressive strength. So it is made by high grade cast iron. It is made by casting and usually cast in one piece.

The top end of the engine cylinder is closed by means of removable cylinder head. There are two holes or ports at the cylinder head, one for intake of fuel and other for exhaust. Both the intake and exhaust ports are closed by the two valves known as inlet and exhaust valve. The inlet valve, exhaust valve, spark plug, injector etc. Are bolted on the cylinder head. The main function of cylinder head is to seal the cylinder block and not to permit entry and exit of gases on cover head valve engine. Cylinder head is usually made by cast iron or aluminum.

It is made by casting or forging and usually in one piece. A piston is fitted to each cylinder as a face to receive gas pressure and transmit the thrust to the connecting rod. It is a prime mover in the engine.

The main function of piston is to give tight seal to the cylinder through bore and slide freely inside the cylinder. Piston should be light and sufficient strong to handle gas pressure generated by combustion of fuel. So the piston is made by aluminum alloy and sometimes it is made by cast iron because light alloy piston expands more than cast iron so they need more clearances to the bore. A piston must be a fairly loose fit in the cylinder so it can move freely inside the cylinder.

Fluid Mechanics

If the piston is too tight fit, it would expand as it got hot and might stick tight in the cylinder and if it is too loose it would leaks the vapor pressure. To provide a good sealing fit and less friction resistance between the piston and cylinder, pistons are equipped with piston rings. These rings are fitted in grooves which have been cut in the piston. They are split at one end so they can expand or slipped over the end of piston. A small two stroke engine has two piston rings to provide good sealing but a four stroke engine has an extra ring which is known as oil ring. Piston rings are made of cast iron of fine grain and high elastic material which is not affected by the working heat. Sometimes it is made by alloy spring steel.

Download: Info: 1/ Install But Don't Run The Program Just Yet. 2/ Go To The Crack Folder And Copy And Paste The Cracked File Over To AVS Video Converter. Ideduper-2.2.0 1741c8d7df Portrait Professional Studio 9.0.14-lalique. IVideoWare Video Converter v8 0 2 CRACKED BEFTH. Clips from one to another. Games category on ivideoware dat converter Download software at. Titre: IVideoWare Video Converter v8 0 2 CRACKED BEFTH. 23rd '10 1.4 GB 0 2 0 0 Oct. 7th '10 1.4 GB 0 0 0 Oct. 7th '10 698.5 MB 0 0 0 Sep. Ivideoware Video Converter V8 0 2 Cracked befth. Link for your forum (BBCode): url=- Download. Ivideoware video converter v8 0 2 cracked befth minecraft.

Connecting rod connects the piston to crankshaft and transmits the motion and thrust of piston to crankshaft. It converts the reciprocating motion of the piston into rotary motion of crankshaft. There are two end of connecting rod; one is known as big end and other as small end.

Big end is connected to the crankshaft and the small end is connected to the piston by use of piston pin. The connecting rods are made of nickel, chrome, and chrome vanadium steels. For small engines the material may be aluminum. The crankshaft of an internal combustion engine receives the efforts or thrust supplied by piston to the connecting rod and converts the reciprocating motion of piston into rotary motion of crankshaft. The crankshaft mounts in bearing so it can rotate freely. The shape and size of crankshaft depends on the number and arrangement of cylinders. It is usually made by steel forging, but some makers use special types of cast-iron such as spheroidal graphitic or nickel alloy castings which are cheaper to produce and have good service life.

Everywhere there is rotary action in the engine, bearings are needed. Bearings are used to support the moving parts. The crankshaft is supported by bearing. The connecting rod big end is attached to the crank pin on the crank of the crankshaft by a bearing. A piston pin at the small end is used to attach the rod to the piston is also rides in bearings. The main function of bearings is to reduce friction between these moving parts.

Engine

In an IC engine sliding and rolling types of bearing used. The sliding type bearing which are sometime called bush is use to attach the connecting rod to the piston and crankshaft. They are split in order to permit their assembly into the engine. The rolling and ball bearing isused to support crankshaft so it can rotate freely. The typical bearing half ismade of steel or bronze back to which a lining of relatively soft bearingmaterial is applied.