Compression ratio
Ratio of the volume of a combustion chamber from its largest capacity to its smallest capacity
Nº Q828137 ★★★
Rare · Knowledge
Compression ratio
Ratio of the volume of a combustion chamber from its largest capacity to its smallest capacity
The compression ratio is the ratio between the maximum and minimum volume during the compression stage of the power cycle in a piston or Wankel engine. A fundamental specification for such engines, it can be measured in two different ways.
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From Wikipedia
The compression ratio is the ratio between the maximum and minimum volume during the compression stage of the power cycle in a piston or Wankel engine. A fundamental specification for such engines, it can be measured in two different ways. The simpler way is the static compression ratio: in a reciprocating engine, this is the ratio of the volume of the cylinder when the piston is at the bottom of its stroke to that volume when the piston is at the top of its stroke. The dynamic compression ratio is a more advanced calculation which also takes into account gases entering and exiting the cylinder during the compression phase.
Text: Wikipédia, CC BY-SA 4.0. · Image: Zephyris (CC BY-SA 3.0) ·
