- #1
CHICAGO
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I do not know if this is the correct place to post this subject, I apologize if it is not.
This is something I am really confused about:
What is really the gas that pushes the piston down in an car fuel engine ?
Is that the flame front gas, or that still unburnt gas which is ahead that flame front which is compressed by the expanding burnt gas?.
I understand, within the combustion chamber, right after the ignition, we have gas which spreads out as it gets burnt. This gas travels with a speed what we can call "low speed", as I heard it is around 40 cms/second?.
But, on the other hand, we have gas pending of being burnt which is compressed, and it seems that "pressure wave" moves at sound speed, more or less.
Ok, I rather shut up now, and leave any expert or experts to let me know more about this.
Thanks a lot in advance.
This is something I am really confused about:
What is really the gas that pushes the piston down in an car fuel engine ?
Is that the flame front gas, or that still unburnt gas which is ahead that flame front which is compressed by the expanding burnt gas?.
I understand, within the combustion chamber, right after the ignition, we have gas which spreads out as it gets burnt. This gas travels with a speed what we can call "low speed", as I heard it is around 40 cms/second?.
But, on the other hand, we have gas pending of being burnt which is compressed, and it seems that "pressure wave" moves at sound speed, more or less.
Ok, I rather shut up now, and leave any expert or experts to let me know more about this.
Thanks a lot in advance.
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