After a production agreement reached by Weichai and world No.1 marine diesel engine manufacturer---Germany-based MAN AG, Weichai-MAN L27/38 series marine diesel engines were introduced to China. Adopting the integral rigid design, the series achieve high security. Its cylinder units, which can be easily installed and taken apart, are integrally installed. Adopting the state-of-art turbocharger and dual inter-cooler from MAN AG, this series products pride themselves in their intake performance. What's more, its AT2000 security control system from MAN AG fully ensures its reliability. With the capability of burning MGO, MDO and HFO, this series engines are well adapted to various working conditions. It is chiefly used as the main and auxiliary engines for ships. Highly powerful and economic, engines used for main propulsion consist of 6, 7, 8 or 9 cylinders with a rotation speed of 800r/min and power coverage of 2,040-3,285kW (min. fuel oil consumption: 184g/kWh; lub oil consumption <0.8g/kWh).
| Item | Unit | engine type | ||||||||
|
6L27 /38 |
7L27 /38 |
8L27 /38 |
9L27 /38 |
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| intake mode | turbocharged and intercooled | |||||||||
| number of cylinders | 6 | 7 | 8 | 9 | ||||||
| bore X stroke | 270×380 | |||||||||
| displacement | L | 130.8 | 152.6 | 174.4 | 196.2 | |||||
| compression ratio | 15.9 | |||||||||
| rated speed |
R /min |
800 | 800 | 800 | 800 | |||||
| fuel |
HFO /MDO |
MGO |
HFO /MDO |
MGO |
HFO /MDO |
MGO |
HFO /MDO |
MGO | ||
| rated power | KW | 2040 | 2190 | 2380 | 2555 | 2720 | 2920 | 3060 | 3285 | |
| min. fuel oil consumption |
G /KWh |
185(HFO/MDO)/186(MGO) | ||||||||
| fuel consumption @ rated power |
G /KWh |
188 | 191 | 188 | 191 | 188 | 191 | 188 | 191 | |
| cooling mode | high and low tempreture fresh water binary | |||||||||
| start mode | air motor | |||||||||
| rotation direction of crankshaft （seen from the free end） | clockwise | |||||||||
| dimension | L | mm | 5070 | 5515 | 5960 | 6405 | ||||
| W | mm | 2035 | 2035 | 2035 | 2035 | |||||
| H | mm | 3555 | 3687 | 3687 | 3687 | |||||
| H* | mm | 2500 | 2500 | 2500 | 2500 | |||||
| net weight | t | 29 | 32.5 | 36 | 39.5 | |||||
Note: H* is the hoisting height benchmarked at the center of the bent axle.