Research Article
Effect of Negative Valve Overlap on Combustion and Emissions of CNG-Fueled HCCI Engine with Hydrogen Addition
Table 1
Main parameters of test engine.
| | Parameter | Value |
| | Displacement (L) | 0.815 | | (mm) | | | Compression ratio | 17 : 1 | | (mm) | | | Calibration power/speed (kW/rpm) | 10.6/2200 | | Calibration fuel consumption rate (g/kWh) | ≤244.8 | | Maximum torque/speed (Nm/rpm) | 50.2/1760 | | Exhaust valve opening timing (°CA BBDC) | 43 | | Intake valve opening timing (°CA BTDC) | 15 | | Exhaust valve closing timing (°CA ATDC) | 15 | | Intake valve closing timing (°CA ABDC) | 33 |
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