Compression Ratio
Compression ratio rk = (V_s + V_c) / V_c - dominant driver of Otto/Diesel cycle efficiency.
Loading calculator…
Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Swept volume = π/4·bore²·stroke | L | |
| Clearance volume | L | |
| Compression ratio |
Source: Heywood - Internal Combustion Engine Fundamentals
In short
Compression ratio rk = (V_s + V_c) / V_c - dominant driver of Otto/Diesel cycle efficiency.