big enough to push a piston? Think about this carefully, because you might be surprised to know its the main catalyst keeping us from getting exceptional gas mileage......
2007-07-07 06:17:30 · 2 answers · asked by gaia_fanatic 3 in Science & Mathematics ➔ Engineering
injan if this is so , why are some cars capable of running 70 mpg? Im talking about big sixes too.........
2007-07-14 06:08:11 · update #1
The flammable limits of gasoline are between 1.2% in air(Lower limit (LFL)), to 7.1% in air (Higher limit (HFL)).
1.2 per 100 parts = 12,000ppm
7.1 per 100 parts = 71,000ppm.
(These are the minimum and maximum figures at which gasoline will burn in air and is the difference between a 'Lean' mixture and a 'Rich' mixture in the 'Fuel to air Ratio' to the engine...The LFL and HFL figures above, vary slightly with the grade of gasoline).
2007-07-07 07:51:04 · answer #1 · answered by Norrie 7 · 1⤊ 0⤋
The lower explosive limit (LEL) of gasoline in air is 1.4% (14,000 ppm) by volume. I'm not sure how you think this relates to fuel economy, as higher concentrations will release more energy and provide more power for a given cylinder size. An engine running at the LEL would be making very inefficient use of its combustion chamber.
2007-07-07 13:47:35 · answer #2 · answered by injanier 7 · 1⤊ 0⤋