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What are the three main components of a crank-connecting rod mechanism?

1 Answers

JuliaRose

07/29/25 6:58pm

The crank-connecting rod mechanism consists of three main parts: the engine block group, the piston-connecting rod group, and the crankshaft-flywheel group. The engine block group mainly includes stationary components such as the cylinder block, crankcase, oil pan, cylinder liner, cylinder head, and cylinder gasket. The piston-connecting rod group mainly includes moving components such as the piston, piston rings, piston pin, and connecting rod. The crankshaft-flywheel group mainly includes mechanisms such as the crankshaft, flywheel, torsional vibration damper, and balance shaft. The crank-connecting rod mechanism operates under conditions of high temperature, high pressure, high speed, and chemical corrosion. Since the crank-connecting rod mechanism moves at variable speeds under high pressure, it mainly bears gas pressure, reciprocating inertia forces, centrifugal forces from rotating components, and friction forces from the contact surfaces of relatively moving parts.

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