( Mechanical engineering : Machinery and components ) Dead center
is the exact top (top dead center
) or bottom (bottom dead center
) of the piston stroke in a reciprocating engine
The cycle begins at top dead center, when the piston is furthest away from the crankshaft.
A piston is at bottom dead center when it is at its lowest point.
Dead center is the exact top or bottom of the piston stroke in a reciprocating engine or pump.
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