Difference between SI and CI engines
Spark Ignition Engines (S.I. Engine) It works on Otto cycle. In Otto cycle, the energy supply and rejection occur at constant volume process and the compression and expansion occur isentropically. The…
Comparison of Petrol and Diesel Engines
Petrol vs Diesel engines: A comparison - Basic difference between a petrol engine and a diesel engine based on working, pressures, combustion, compression ratios, speed, efficiency, maintenance, and running costs.…
Brake power of IC Engine
The brake power (briefly written as B.P.) of an IC Engine is the power available at the crankshaft. The brake power of an I.C. engine is, usually, measured by means…
Efficiency of an IC Engine
The efficiency of an IC engine (Internal Combustion Engine) is defined as the ratio of workdone to the energy supplied to an engine. The following efficiencies of an 1.C. engine are important: (a) Mechanical…
Difference between four stroke and two stroke engines
The following are the main differences between a four stroke and two stroke engines: 4-Stroke 2-Stroke In four stroke engine all the four operations i.e. suction, compression, ignition and exhaust are completed…
Definition and Classification of I.C. Engines
I.C. Engines: Internal combustion engine more popularly known as I.C. engine, is a heat engine which converts the heat energy released by the combustion of the fuel inside the engine cylinder, into mechanical…
Ignition System of Petrol Engines
The ignition in a petrol engine takes place by means of a spark plug at the end of the compression stroke. The voltage required to produce a spark across the…
Cetane Number – Rating of CI Engine Fuels
What is Cetane Number? How rating of fuels used in C. I. Engines (Compression Ignition Engines) is done using Cetane number and other parameters? The knocking tendency is also found in compression ignition (C.…
Improvements To Automatic Transmissions
The transmission in a vehicle matches the power requirements of the automobile to the power output available from an engine or motor; the automatic transmission’s selection of different gears keeps…
Other Engine And Fuel Technologies
Overview Numerous engine and fuel technologies have been suggested as powerplants and power sources for the future In general, most of the alternative fuels, with one exception, are hydrocarbon fuels…


