The engine depends on several systems to do its work, these systems are classified as engine operating systems. Starting system, air intake system, charging system, fuel system, ignition system, lubrication system, cooling system, pollutant control system, exhaust system. Purpose of Lubrication System: The system lubricates moving parts to reduce wear by trapping the clearances between moving […]
There are many ways to classify an engine, even though the fundamental parts (block, pistons, crankshaft, camshaft are basically the same. Thesedesign differences, however, can greatly affect how the engine performs and how it is served.Modern automotive engines are normally classified by:1. Number of cylinders and engine swept volume (4,6,8,12,3,5,2), (cc, L)2. Arrangement of cylinders
Cylinder Swept Volume (Vc): where: Vc = cylinder swept volume [cm3 (cc) or L] Ac = cylinder area [cm2 or cm2/100] dc = cylinder diameter [cm or cm/10] L = stroke length (the distance between the TDC and BDC) [cm or cm/10] BDC = Bottom Dead Center TDC = Top Dead Center * Increase the diameter or the stroke length
The engine is the vehicle’s driving power source. It converts fuel energy (input) into torque (output). Power is defined as the product of torque multiplied by the engine’s rotational speed. Power [kilowatts] = engine torque [newton meters] x rotational speed [circular angle per second] The torque engine depends on the energy generated by the combustion of the fuel-air mixture,
Conventional car engineA part from the benefits of traditional experience in this type of unit, the four-stroke, four- cylinder, in-line, water-cooled petrol engine has inherent advantages.The two-stroke unit has unacceptable fuel consumption. The economy of the compression-ignition (CI) is offset by the lower power and acceleration, with increased cost, noise, weight and (to some) more objectionable
