State the functions and materials of following engine components:

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State the functions and materials of following engine components:

written 4.6 years ago by

teamques10 ★ 64k

• modified 2.3 years ago

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written 4.6 years ago by

teamques10 ★ 64k

• modified 4.6 years ago

(i) Piston

(ii) Connecting rod

(iii)Crank shaft

(iv)Exhaust manifold

Engine components	Material	Functions
Piston	Cat aluminum alloy	To transmit the force of explosion to the crankshaft. To form seal so that the high pressure gases in combustion chamber do not escape into crankcase. To serve as guide and bearing for small end of connecting rod.
Connecting rod	Steel alloy, aluminum alloy and titanium	It converts the reciprocating motion of the piston into rotary motion of crankshaft.It connects piston to the crankshaft.
Crank shaft	Cast iron or forged steel	It converts the reciprocating motion of piston to rotating motion. It transmits power to flywheel. It receives power from flywheel.
Exhaust manifold	simple cast iron or stainless steel	The function of an exhaust manifold is to expel the exhaust gases from the combustion chamber of each cylinder out to the atmosphere through the exhaust pipe after combustion stroke is completed. To keep back pressure minimum.

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