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    Gravcore's Avatar
    Gravcore Posts: 1, Reputation: 1
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    #1

    Nov 18, 2009, 12:48 AM
    I need to know how much actual force is acting on the piston.
    Hello: I know that the force in a combustion chamber of a gas engine is around 1100 psi. lets say the ratio is 9.0 to 1.
    grayson0407's Avatar
    grayson0407 Posts: 2, Reputation: 1
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    #2

    Nov 18, 2009, 12:54 AM

    How can I find out how much money I will receive on my income taxes this year I've made 22,000
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #3

    Nov 18, 2009, 06:52 AM
    Quote Originally Posted by Gravcore View Post
    Hello: I know that the force in a combustion chamber of a gas engine is around 1100 psi. lets say the ratio is 9.0 to 1.
    Do you meant 'pressure'?

    Well,



    If you have the area of the piston, you have the force on it :)
    ebaines's Avatar
    ebaines Posts: 12,132, Reputation: 1307
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    #4

    Nov 18, 2009, 09:08 AM
    Quote Originally Posted by Gravcore View Post
    Hello: I know that the force in a combustion chamber of a gas engine is around 1100 psi. lets say the ratio is 9.0 to 1.
    To add to what Unknown said - the compression ratio is immaterial to your queston. The pressure when the air/fuel mixture is compressed 9:1 is much, much less than the pressure once the mixture is ignited. So if you aleady know that the pressure after ignitionis 1100 psi, just use the formula that Unknown gave you to determine the force on the piston.

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