2 stroke cylinder

Discussion in 'General Engine Discussion' started by Ukko, Jun 22, 2018.

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  1. Jun 22, 2018 #1

    Ukko

    Ukko

    Ukko

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    How do i make ports for 2 stroke cylinder?
     
  2. Jun 22, 2018 #2

    natalefr

    natalefr

    natalefr

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    What is your engine project ?
     
  3. Jun 22, 2018 #3

    lohring

    lohring

    lohring

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    Take a look at this thread for a lot more than you wanted to know.

    Lohring Miller
     
  4. Jun 22, 2018 #4

    xpylonracer

    xpylonracer

    xpylonracer

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    For simple ports cut holes in the cylinder wall, 1 hole for the exhaust and 1 for the inlet transfer port. That sounds simple but the holes need to be at the correct height in the cylinder to ensure correctly timed opening/closing periods. For a simple engine the ports will be positioned opposite each other.
    If the incoming air/fuel mixture is entering via the crankcase, from front or rear induction, then inlet transfer channel/s will need to be provided in the crankcase to the top of the transfer port/s in the cylinder.
    The top of the transfer port will be lower than the top of the exhaust port but there will normally be some overlap of port to case openings (inlet,transfer,exhaust) this is useful if using a tuned exhaust system.

    xpylonracer
     
  5. Jun 23, 2018 #5

    cox24711

    cox24711

    cox24711

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    It depends on the method of induction (reed valve, sideport, rotary valve, etc.) of the said "2 stroke".
    But there are many ways to skin a cat......
    If I remember correctly, the Sparey Diesels transfer ports were made from steel sheet folded and brazed onto the cylinder!


    Greg
     

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