4 Stroke Cycle

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Transcript of 4 Stroke Cycle

  • 7/26/2019 4 Stroke Cycle

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    Intake Stroke

    Intake valve open.

    Piston moves down (TDC to BDC) in cylinder.

    Low pressure is created in cylinder.

    Air is rou!"t into t"e comustion c"amer due to pressure

    di#erences.

    Compression Stroke

    Both valves closed.

    Piston moves from BDC to TDC

    Air in combustion chamber is compressed, raising its

    temperature.

    Near TDC of Compression stroke, diesel fuel is injected into the

    combustion chamber.

    Power Stroke

    Bot" valves are closed

    Air$%uel mi&ture urns rapidly

    '&pansion o% t"e urnin! air$%uel mi& applies %orce to t"e "ead o% t"e

    piston

    Piston is driven down in t"e cylinder.

    '&"aust Stroke

    Piston moves %rom BDC to TDC.

    '&"aust valve is open.

    Burnt air$%uel mi&ture is scaven!ed %rom comustion c"amer.