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  2. Two-stroke power valve system - Wikipedia

    en.wikipedia.org/wiki/Two-stroke_power_valve_system

    A stroke is the action of a piston travelling the full length of its cylinder.In a two-stroke engine, one of the two strokes combines primarily the intake stroke and the combustion stroke, while the other stroke primarily combines the compression stroke and the exhaust stroke, though technically since both ports are exposed during both the combustion and compression strokes, some reversion ...

  3. Fume hood - Wikipedia

    en.wikipedia.org/wiki/Fume_hood

    The bypass is located so that as the user closes the sash, the bypass opening gets larger; when the sash is fully closed, air flows only through the airfoil underneath the bottom of the sash window. [ 38 ] : 12 The air going through the hood maintains a constant volume no matter where the sash is positioned and without changing fan speeds.

  4. Expansion chamber - Wikipedia

    en.wikipedia.org/wiki/Expansion_chamber

    When the transfer is complete, the piston is on the compression stroke but the exhaust port is still open, an unavoidable problem with the two stroke piston port design. To help prevent the piston pushing fresh mixture out the open exhaust port the strong acoustic wave (produced by the combustion) from the expansion chamber is timed to arrive ...

  5. Propelling nozzle - Wikipedia

    en.wikipedia.org/wiki/Propelling_nozzle

    The nozzle opens up in two halves which come together to redirect the exhaust partially forward. Since the nozzle area has an influence on the operation of the engine (see below ), the deployed thrust reverser has to be spaced the correct distance from the jetpipe to prevent changes in engine operating limits. [ 16 ]

  6. Component parts of internal combustion engines - Wikipedia

    en.wikipedia.org/wiki/Component_parts_of...

    The majority of exhausts also have systems to prevent heat from reaching places which would encounter damage from it such as heat-sensitive components, often referred to as Exhaust Heat Management. For jet propulsion internal combustion engines, the 'exhaust system' takes the form of a high velocity nozzle , which generates thrust for the ...

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