Research Article
Development of a Three-Phase Sequential Turbocharging System with Two Unequal-Size Turbochargers
Table 2
Valves actions in switching processes.
| Switching boundary | Switching process | Valves actions | VBC | VBT | VSC | VST |
| First switching boundary | Small TCbig TC | Open | Open | Close | Close | Big TCsmall TC | Close | Close | Open | Open | Second switching boundary | Big TC2TC | / | / | Open | Open | 2TCbig TC | / | / | Close | Close |
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