Safe and reliable
· The overhaul period of high-strength engine block, crankshaft, connecting rod and cylinder head is 12000h
· The high-quality suppliers of Weichai system are used. It is developed according to the high requirements of large displacement engines for reliability
· Rigorous and perfect test methods ensure the reliability of key parts and component
Strong power
· The torque reserve is as high as 20%-35%, the range of large torque section is wide, and the ships equipped with the engine will have good acceleration
Economical and fuel-efficient
· Reasonable allocation of oil pump, turbocharger, air intake and exhaust system; low oil consumption under common working conditions; good economical nature
· With shallow ω combustion chamber, the best cylinder clearance and swirl ratio, the fuel consumption rate is as low as 195g/kW•h
Comfortable and environmentally friendly
· The NVH optimization for the whole engine effectively reduces vibration and noise
· There is no IMO emission requirement
Strong practicability
· LCD Internet instrument can be selected to monitor engine operating parameters in real time, so as to realize automatic alarm and stop
· It is suitable for marine engines such as passenger ships, cargo ships, public service ships, fishing boats and tourist ships
Parameters Table
| Type | Four-stroke, water cooled, in-line, turbocharged/turbocharged and intercooled | Number of cylinders | 4 |
| Cylinder diameter/stroke | 105×130(mm) | Displacement | 4.5L |
| Oil consumption rate | ≤0.6g/kW·h | Noise | ≤100dB（A） |
| Minimum fuelconsumption rate | 195g/kW·h | Idle speed | 650±30r/min |
| Torque reserve | 20-35% | Net weight | 600kg |
|
Rotation directionof crankshaft (facing the freeend) |
Clockwise | Emission standard | See the Model Portfolio Table |
| Dimensions | 1065×819×1056（mm） | ||
Model Portfolio Table
| Series | Model | Air intake mode | Rated power kW/Ps |
Speed r/min |
Fuel feeding mode | Emission level | Power classification |
| WP4 | WP4C95-18 | Turbocharged | 70/95 | 1800 | Mechanical pump | — | P1 |
| WP4C102-21 | Turbocharged | 75/102 | 2100 | Mechanical pump | — | P1 | |
| WP4C102-15 | Turbocharged and intercooled | 75/102 | 1500 | Mechanical pump | — | P1 | |
| WP4C120-18 | Turbocharged and intercooled | 88/120 | 1800 | Mechanical pump | — | P1 | |
| WP4C130-21 | Turbocharged and intercooled | 95/130 | 2100 | Mechanical pump | — | P1 |