Cranckshaft Research Paper

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Cranckshaft:- it is the heart and the main part of motor engine which response on deliver the motion from motor to drive system which happen because the effective combustion process Cranckshaft is contain parts to help motor in its motion and working on save the balancing the rotating motion of cranckshaft those parts are :- 1-oil bores: its mission is to deliver the lubricant liquid to every part in cranckshaft 2-balance bores: to balancing the mass of Cranckshaft to avoid any vibration 3-cranck pin 4-shaft journal 5-counter weight: to balancing masses Also cranckshaft is using to control some operation in engine like cooling and lubricant by connecting it to devices and controlling their motion by belts. Cranckshaft can be made of two …show more content…

The poppet valves are the most common use in engine nowadays, determination of valves number of engine is happen by the number of combustion chamber and it’s depend on the air-fuel mixture and exhaust amounts so not all engines have the valves number , Poppet valves takes this name because its motion mechanism when it open and close by popping up and popping down also according to its shape some people called mushroom valves because it’s consist of head in the end of it and long stem, there are a lot of advantages for poppet valves which make it the most common used valves in engines world those advantages are easy of maintaining , free motion of stem and the self-centering, in any combustion chamber there are two types of valves , valves for intake and valves for exhaust designers of valves consider the difference between speed of exhaust and speed of air-fuel mixture to make the exhaust valve smaller than the other valve because the speed of exhaust and pressure are larger than speed and pressure of air-fuel

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