Difference between revisions of "Crankshaft"
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[[Image:Cshaft.jpg|300px|thumb|Crankshaft (red), pistons (gray) in their cylinders (blue), and flywheel (black)]] | [[Image:Cshaft.jpg|300px|thumb|Crankshaft (red), pistons (gray) in their cylinders (blue), and flywheel (black)]] | ||
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The '''crankshaft''', sometimes abbreviated to ''[[crank (mechanism)|crank]]'', is the part of an [[engine]] that translates [[reciprocation|reciprocating]] [[linear]] [[piston]] motion into rotation. To convert the reciprocating motion into rotation, the crankshaft has "crank throws" or "[[crankpin]]s", additional bearing surfaces whose axis is offset from that of the crank, to which the "big ends" of the [[connecting rod]]s from each cylinder attach. | The '''crankshaft''', sometimes abbreviated to ''[[crank (mechanism)|crank]]'', is the part of an [[engine]] that translates [[reciprocation|reciprocating]] [[linear]] [[piston]] motion into rotation. To convert the reciprocating motion into rotation, the crankshaft has "crank throws" or "[[crankpin]]s", additional bearing surfaces whose axis is offset from that of the crank, to which the "big ends" of the [[connecting rod]]s from each cylinder attach. | ||
Latest revision as of 14:17, 1 April 2020
Definition
The crankshaft, sometimes abbreviated to crank, is the part of an engine that translates reciprocating linear piston motion into rotation. To convert the reciprocating motion into rotation, the crankshaft has "crank throws" or "crankpins", additional bearing surfaces whose axis is offset from that of the crank, to which the "big ends" of the connecting rods from each cylinder attach.
It is typically connected to a flywheel to reduce the pulsation characteristic of the four-stroke cycle, and sometimes a torsional or vibrational damper at the opposite end, to reduce the torsional vibrations often caused along the length of the crankshaft by the cylinders farthest from the output end acting on the torsional elasticity of the metal.
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