Definition, Meaning & Synonyms
top-dead-center
Noun
ˈtɒp ˈdɛd ˈsɛntər
Definition
The position of a piston in a reciprocating engine when it is at the very top of its stroke, where the crankshaft is perpendicular to the connecting rod.
Examples
- When the piston reaches top-dead-center, the ignition timing needs to be accurately set.
- Understanding top-dead-center is crucial when tuning an engine for maximum efficiency.
Meaning
In mechanics, ‘top-dead-center’ (often abbreviated TDC) refers specifically to the point where the piston is at its highest position in the cylinder, and it is significant for various timing and performance calculations in engines.
Synonyms
- piston top position
- maximum height
