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Diesel engine piston ring gaps can be straight-cut or

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  • Diesel engine piston ring gaps can be straight-cut or

    angle-cut. What is the advantage of angle cutting in compression rings ?

  • #2


    decreases the combustion gas leakages.

    Due to the angle-cut rings and if they are left and right cut, if they are fitted alternatively, the resistance offered for the gas to flow through the gap between piston

    rings end i.e. butt clearance, is more. Hence less leakage takes place from the top of the piston rings to the bottom of the piston rings through the gap between the

    piston rings. Hence angle cutting is more preferred than straight cut. But in angle-cut rings, the joint at the cut position will be slightly weaker than the straight-cut

    rings.

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