what are the ways for modern diesel engines to save energy and reduce emissions?
 
| Engine Application Construction | Engine Category Yuchai | 
| Engine Model | YC4E135-21 | 
|---|---|
| Configuration | Vertical,in-line, 4 stroke, water-cooled, direct injection | 
| Number of Cylinders × Bore × Stroke | 4-110×112 | 
| Displacement (L) | 4.26 | 
| Compression ratio | 17.5:1 | 
| Aspiration | Turbocharged, inter-cooled | 
| Fuel System | Mechanical pump | 
| Rated Power /Speed (kW/r/min) | 100/2800 | 
| Torque/Speed (N.m/r/min) | 390/1600~1800 | 
| Min. fuel consumption with full load (g/kW.h) | ≤215 | 
| Speed governing rate % | 8~12 | 
| Emission | Tier 2 | 
| Application | Construction machinery |