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What Is The Difference Between A Two-stroke And Four-stroke Engine?

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    A two-stroke engine runs on petrol and it completes one cycle of rotation in only 2 strokes while a four-stroke engine runs on diesel and needs four strokes to complete one cycle.
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    Gkforme 

    answered 3 years ago

    No...a 2 sroke engine can also be a diesel engine.basically 2 stroke and 4 stroke differs in the number of power or working stroke per cycle.in 2 stroke power sroke comes in each cycle but in 4 stroke 1 power stroke requires 2 cycles.
    2 stroke has intake of gases and exhaust of burned gases are simultaneosly done with compression and expansion stroke.whr in 4 stroke these are separate stages.
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    Prashant07

    Prashant07

    commented 3 years ago

    No it is not essential . Four stroke engine also works on petrol
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    Nirajmishr

    Nirajmishr

    commented 3 months ago

      In two stroke two revolutions of a crankshaft completes a cycle but in four stroke four revolutions completes a cycle
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      Kanna_nani 

      answered 2 years ago

      Yes prashant07 is correct when he said a 2 stroke and a 4 stroke can be diesel... But to add to his comment the cycle works in that way and this eliminated the need for valves on the 2 stroke (unless it has loop scavenge which means there would be one exhaust valve on the cylinder head) but Theres room for another thought with regards to the construction of the 2 types of engine. The big difference between a 4 stroke and a 2 stroke is that a two stroke has an under piston space (connected with the scavenge space) which separates the cylinder liner and the crankcase (sump) HOWEVER on a 4 stroke the liner is open to the atmosphere in the sump.
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      Marine-eng

      Marine-eng

      commented 1 year ago

        In 2stroke valves used, in 4strokeports used
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        Guest

        Guest 

        answered 8 months ago

        Two stroke has only two strokes strokes and four strokes has four?
        The two strokes is intake and exhaust
        four stroke has four1: Intake 2: Exhaust 3: Compression 4: Combustion
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        Guest

        Guest 

        answered 5 months ago

        Im pretty sure it runs n gas guys,
        gees calm down a little
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        Guest

        Guest 

        answered 3 months ago

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