The petrol or oil engine, which is the source of power with which we are
immediately concerned, is a form of internal combustion ‘heat engine’, the
function of which is to convert potential heat energy contained in the fuel
into mechanical work.
Engine main components:
Cylinder: The ideal form consists of a plain cylindrical barrel in which the
piston slides
Piston: The usual form of piston for internal combustion engines is an
inverted bucket-shape, machined to a close (but free sliding) fit in the cylinder
barrel. Gas tightness is secured by means of flexible ‘piston rings’ fitting
closely in grooves turned in the upper part of the piston.
Connecting rod:The connecting rod transmits the piston load to the crank,
causing the latter to turn, thus converting the reciprocating motion of the
piston into a rotary motion of the crankshaft. The lower end, or ‘big end’, of
the connecting rod turns on the crank pin.
Crankshaft: In the great majority of internal combustion engines this is of
the double-web type, the crank pin, webs and shaft being usually formed
from a solid forging. The shaft turns in two or more main bearings (depending
on the number and arrangement of the cylinders) mounted in the main frame
or ‘crankcase’ of the engine.
Flywheel: At one end the crankshaft carries a heavy flywheel, the function
of which is to absorb the variations in impulse transmitted to the shaft by the
gas and inertia loads and to drive the pistons over the dead points and idle
strokes. In motor vehicles the flywheel usually forms one member of the
clutch through which the power is transmitted to the road wheels.
Previous parts are the main mechanical components of the engine,but in fact there are many systems which grantee that the engine is working properly like lubrication system,cooling system and many ather systems that will be discused later in details
Hey,here you are a complete set of videos describe in details all engine components:
The 2 strock engine principle and operation
Cam Shaft function,operation and manufacturing
Compustion chamber shape and operation
Connecting rod function,operation and manufacturing
Cranck shaft function,operation and manufacturing
Engine block manufactring and operation
ICE cylinder linar operation and function
ICE sliding bearings types and location
ICE flywheel construction,operation and functions
ICE overhear cam gear train operation and construction
ICE piston rings operation,function and manufacturing
Pistons operation,functions and manufacturing
Valves guides installation and machining
ICE valve seats installing and machining
Effect of the valve size on the overall performance of the vehicle
ICE oil seals
ICE valve seats machining and installation
Refrence:The Motor Vehicle 13th edition
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