MSD Class Ppt
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Transcript of MSD Class Ppt
Basic functions of IC engine cylinder1) To retain the working fluid such as mixture of petrol and air or diesel and air2) To guide the piston
-Combustion of fuel takes place inside the Cylinder and therefore it is subjected to very hightemperature.-For this cooling arrangements are required
-In small engines- cylinder and frame are made ofOne-piece casting.-In large engines- a separate cylinder liner is used.
Construction details of cylinder liner
A thin cylinder may fail due to following stresses,1) Stress in tangential direction (Hoop stress) or circumferential stress 2) Longitudinal stress
** Hoop stress is twice the longitudinal stress hence design should be based on it.Thickness can be calculated as,
/ 2c i iPd t / 4l i iPd t