Loads acting on a con-rod are gas load from piston and inertia loads from all reciprocating parts. Inertia loads acts as a correction to gas loads. The thrust or end loading are push-pull in nature
(tensile+compressive) in 4s, and purely compressive in 2s. So con rods of 4s undertake more stresses so the must be made with i beam cross sections. failure occurs in 2s if started with oil or liquid in the cylinder, in 4s failure may occur due to fatigue failure, bearing seizure also leads to buckling.
(tensile+compressive) in 4s, and purely compressive in 2s. So con rods of 4s undertake more stresses so the must be made with i beam cross sections. failure occurs in 2s if started with oil or liquid in the cylinder, in 4s failure may occur due to fatigue failure, bearing seizure also leads to buckling.
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