loading
Loading.....

Air Fuel Ratio

The ratio 14:1 used to burn 14 parts of air by one part of fuel (by weight) to form a more efficient mixture to achieve maximum power rather than the stoichiometrically correct ratio of 14.7 : 1, which is maintained in a three – way catalyst engine, is called Air Fuel ratio. The ordinary engines run on weak mixtures with air/ fuel ratios in the region of 15/16: 1whereas lean – burn engines run on still weaker engines under the air/ fuel ratio of 18 – 20: 1, during part – throttling.

 

A
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
 
In theory stoichiometric mixture has sufficient amount of air to burn the available fuel. But it is next to impossible to achieve this practically due to short time available in an internal combustion engine in every combustion cycle. Most of the combustion process takes place approximately in 4–5 milliseconds at an engine speed of 6,000 revolutions to the minute (100 revolutions per second or 10 milliseconds per revolution).
 
A bad thing abouta stoichiometric mixture is that it burns at very temperature and can probably damage components of engine if placed under high load of this air – fuel mixture. Due to high temperatures of this stoichiometric mixture the pinging/ knocking of the air – fuel mix is possible under such high loads. Other terms used for Air – Fuel Ratios in various fields are: Mixture, Fuel–air ratio (FAR), Air–fuel equivalence ratio (λ), Fuel–air equivalence ratio (?), Mixture fraction and Percent excess combustion air.
 

Popular Car Comparisons

Fortuner 2.7 4x2 ATEndeavour Titanium 4x2 AT

Fortuner Vs Endeavour full blown SUV Competing for Buyers Wallet. Real SUV for SUV lovers from Toyota and Ford. Endeavour and Fortuner comes in 4*2 and 4*4 drive train. Fortunately both have the muscle, looks and power under their hoods to take any terrain with ease. Whilst, on paper feature to feature and engine comparison seems to be tilting the balance in favour of the Endeavour, however, Toyota has enough fan following who will willingly ignore any marquee for a Toyota at any price. Lucky Toyota.


Write a Review

Do a Good Deed Today. Reviews on cars and/or dealership on www.ecardlr.com have been written by people like you. These honest, candid reviews on cars or their dealership experience help others like you and all of us help take a right decision. It's your turn now to return their good deeds with a review on any car/or dealership that you might have been lately. Please write a review on a car and/dealership and help other car buyers in India.

Car Advice By Car Experts

Price comparison between Endeavour, Fortuner, Tucson and CRV

Must admit we are surprised at your query, as the SUVs you are comparing are not comparable at all. The only reason we believe that you are looking at price and variant details for Ford Endeavour, Toy....Read More

Dealer Locator


Service Centre Locator

close