Abstract
News editors obtained the following quote from the background information suppli ed by the inventors:“In the mechanical structure of a vehicle engine, a cranksh aft is the most important part of the engine.The crankshaft is a mechanical equ ipment that transforms a reciprocating movement of a piston into arotary motion . The crankshaft is connected to the piston through a connecting rod. During ope ration,the crankshaft will bear a force transmitted by the connecting rod and c onvert it into torque to drive otheraccessories on the engine to work.
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