Get Even More Visitors To Your Blog, Upgrade To A Business Listing >>

Air fuel ratio

Air Fuel ratio is the ratio of air supplied to the combustion chamber to the fuel injected.  It is a critical parameter of engine performance.  A proper air fuel mixture will result in proper and efficient combustion. 

If the air is more relative to the fuel, the mixture is called a lean mixture.  This results in lesser power generation.  The required torque will not be developed. 

If the air is less compared to the fuel, the mixture is called a rich mixture.  This results in incomplete combustion.  The smoke emitted is dark in color due to the presence of carbon particles which have not been oxidised.  The engine will not develop the required power.

Stoichiometric combustion is the ideal combustion in which all the fuel is combusted with no excess air.  It is not possible to mix the ideal amount of fuel with the ideal amount of gas in practice. 

The ratio of the mass of air to the mass of fuel is called the Air-Fuel ratio or AFR.



This post first appeared on MechTechnik, please read the originial post: here

Share the post

Air fuel ratio

×

Subscribe to Mechtechnik

Get updates delivered right to your inbox!

Thank you for your subscription

×