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…
Bringing an Advanced Battery to Market
Initial testing of a simple cell at the laboratory is basically a proof-of concept, and is utilized to test the stability and output under carefully controlled conditions. A group of…
Battery Characteristics
For this discussion, batteries have been divided into four thematic groups: lead acid, alkaline, high temperature, and solid electrolyte. Various battery designs have been examined that would fall under the…
Electric Drivetrain Technologies
Introduction The appeal of using electricity to power automobiles is that it would eliminate vehicular air pollution (although there would still be pollution at the power source), and that electricity…
DISC and Two-Stroke Engines
Direct Injection Stratified Charge (DISC) Engines are considered as the highest level of technology refinement for SI engines. These engines are almost completely unthrottled, and will require variable valve timing…


