Question: 1 ) Consider a standard piston engine. Draw a free body diagram of the piston. Then: a . For an SI engine with a 7

1) Consider a standard piston engine. Draw a free body diagram of the piston. Then:
a. For an SI engine with a 79 mm bore at an instantaneous cylinder pressure of 35 bar
i. Calculate the level of the combustion gas loading force on the wrist pin (kN).
b. Repeat this calculation for a forced-induction Diesel engine with a 175 mm bore at a cylinder
pressure of 129 bar.

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