The limit of supercharging for an S. [ IES-2000 ] Reason ( R ) : In the CI engine supercharging tendsto preventdiesel knocking

Faulty injectorcausingdiesel knock

the injector pump timing advancing at tickovercausinga " diesel knock

injector limits being out of spec /excitation of the injector causing too much fuel to enter the combustion chamber This can be rectified by having the injector pilot learn relearned using fords ids software(passive) caused bydiesel knock

dripping outcould causea bad diesel knock

thereby providing smooth and gradual combustionthus preventingdiesel knocking

petrol in the tank(passive) caused bydiesel knock

high cylinder pressure before TDC(passive) could be caused bythe diesel knock

most commonly(passive) is ... causedthe diesel knock

false readings from the crank sensor to the ecu affecting the timing(passive) caused bydiesel knock

If the engine increases in revs during application , run the engine at idle instead of 2,000RPMto preventdiesel knock

This conditioncausesdiesel knock

the burning charge is creating pressure and also being compressed at the same timecausing‘ diesel knock ’ to occur

tendencyto causea diesel knock

incorrect fuelingcausesthe diesel knock

Such pressure ratesmay causediesel knock

too rapid combustion and is the result of a long ignition delay period , since during this period fuel is injected and mixes with air to form a combustible mixture  Ignition occurs only after the pressure and temperature have been above certain limits for sufficient time , and fuels with high cetane numbers are those that self - ignite readily - The minimum cetane number of the good grade diesel fuel is 50 and for the other is 45 - Starting characteristics - the fuel should start the engine easily - requires high volatility to form readily combustible mixture , a high cetane rating so that the self - ignition temperature is low - Smoke and odour - the fuel should not produce smoke or odour after combustion - Corrosion and wear - should not cause corrosion before combustion , or corrosion and wear after combustion - directly related to sulphur , ash , and residue contents of the fuel - Handling ease - should be liquid that will readily flow under all conditions - measured by the pour point and viscosity of fuel(passive) is caused bydiesel knock  Diesel knock

the accumulation and detonation of relatively large amounts of fuel before the desired smooth combustion process has been established(passive) is caused bydiesel knock

ignition lag(passive) is prevented byDiesel knock

too quickly combustion(passive) is caused byDiesel knock

poor atomization of the fuel , which can take too long to reach combustion temperature(passive) can also be caused byDiesel knock

the temp sensoris causingthe diesel knock

the ignition delay period but heard in the flame spread period(passive) is caused bydiesel knock

the injection timingcausingdiesel knock