A 4-cycle engine will mix gasoline with air during the intake stroke at aprox 14.7 (air) to 1 (gasoline) ratio.
A 4-cycle engine will mix gasoline with air during the intake stroke at aprox 14.7 (air) to 1 (gasoline) ratio.
During complete combustion, carbon dioxide and water are formed. If incomplete combustion occurs, carbon monoxide and water are produced.
Engine performance and efficiency is measured not only on how it was constructed and the materials used, but also on the characteristics of the fuel it will use. For gasoline fed engines, the smaller the molecules, the better the power is produced during combustion. Different Oil companies have their own blends for gasoline and the particle sizes will range from 30 to 100 microns depending on the blend. Engine designers have introduced advanced injection systems that further break down the gasoline particles up 10 microns as they are fed into the combustion chamber.
Engine performance and efficiency is measured not only on how it was constructed and the materials used, but also on the characteristics of the fuel it will use. For gasoline fed engines, the smaller the molecules, the better the power is produced during combustion. Different Oil companies have their own blends for gasoline and the particle sizes will range from 30 to 100 microns depending on the blend. Engine designers have introduced advanced injection systems that further break down the gasoline particles up 10 microns as they are fed into the combustion chamber.
Development of the internal combustion engine
development of the internal combustion engine.
Yes. During WWII some fighter planes engines had the capability to inject small quantity of ethanol inside the cylinders to increase the octane rating of the gasoline. The higher the octane rating the better the more compression a fuel can withstand before detonating. It is a way to augment thrust in IC engines. (although to my knowledge not so widely used in present days)
The development of the internal combustion engine
Internal combustion engines produce a lot of waste heat. So much so that if this excess heat is not removed the engine will weld itself into a immobile blob.
The 2 most common and obvious are: Electricity from batteries. (Photovoltaic cells use physical rather than chemical changes.) Heat from combustion - for heating buildings, industrial processes etc., and in heat-engines (internal-combustion, steam-turbine, gas-turbine, and jet - in former times, hot-air engines and steam engines).
The combustion cylcle (power stroke) forces piston down to create engine power.
They aren't.Gasoline engines are (sort-of) constant volume engines while Diesel engines are (sort of) constant pressure engines.In a gas engine, the combustion process is so fast compared to the travel rate of the piston that it all happens in the same volume, before the piston has had much time to move away.In a Diesel engine combustion is so much slower that the piston will actually have time to move away while fuel is still being burnt.As the volume of the combustion chamber increases during burn as the piston moves away, the pressure will remain pretty much the same throughout the burn.