40kW~57kW power coverage
Applicable ship types:Marine gas generator sets
Technical Parameters
| Name | Technical Specifications | ||
| category | Marine auxiliary generator | ||
| model | YC4D80NL-C21 | YC4D70NL-C21 | YC4D55NL-C21 |
| Type | Vertical, in-line, water-cooled, four-stroke | ||
| Air intake method | Supercharged intercooler | ||
| Number of cylinders | 4 | ||
| Cylinder diameter mm | 108 | ||
| Piston stroke mm | 115 | ||
| Total piston displacement L | 4.21 | ||
| Rated power kW | 57 | 50 | 40 |
| Rated speed r/min | 1500 | ||
| Overload power kW | 62.7 | 55 | 44 |
| Overload speed r/min | 1500 | ||
| Average piston speed m/s | 5.75 | ||
| Average effective pressure MPa | 1.08 | 0.95 | 0.76 |
| Firing order | 1-3-4-2 | ||
| Crankshaft rotation direction | Counterclockwise (towards the power output end) | ||
| Starting method | Electric start | ||
| fuel | NG | ||
| Oil capacity L | 12 | ||
| Steady state speed regulation % | ≤5 | ||
| Instantaneous rate regulation % | ≤15 | ||
| emission | Ship Machinery National II | ||
| Overall dimensions (length x width x height) mm | 1040×790×1155 (Dimensions may vary depending on configuration) | ||
| Net weight kg | 520 (may vary depending on configuration) | ||
YUCHAI YC4DN Marine gas engine...
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