engine, Mechanical Engineering

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Single Cylinder Vertical Engine has a bore of 30cm and a stroke of 40cm. The connecting
rod is 100cm long. The mass of the reciprocating parts is 140Kg on the expansion stroke with the crank at
30 degree from the T.D.C the gas pressure is 0.7MPa. If the engine runs at 250 r.p.m. , Determine:
1) Net force acting on the piston,
2) Resultant load on the gudgeon pin,
3) Thrust on the cylinder walls, and
4) The speed above which, other things remaining same, the gudgeon pin load would be reversed in
direction.

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