Overview
Weichai WP7 series engines for construction machinery are new high-end diesel engines independently developed by Weichai in 2007. Displacement: 7.47L. Power range: 162-199kW. Electronically controlled common-rail fuel injection system is a standard configuration item. Four-valve integral cylinder head, gantry-type engine body, and rear mounted gear chamber are used. Power, fuel consumption, torque, etc. and other main technical indicators all reach the advanced level of diesel engines having the same displacement. Euro Stage IIIa emission standard. Equipped with a suitable after-treatment system to meet higher emission standard.
Power Rating
| Maximum Power |
199 kW |
| Minimum Power |
162 kW |
| Maximum Torque / Speed |
1200/（1200-1500） N·m / r/min |
Emission Standards
| Emissions |
Euro Stage IIIa |
General
| Series |
WP7 |
| Fuel |
Diesel |
| EngineType |
Inline 6-cylinder, four-stroke engine |
| Cylinder Number |
6 |
| Valve Number |
4 |
| Bore |
108 mm |
| Stroke |
136 mm |
| Displacement |
7.47 L |
| Aspiration |
Turbocharged and intercooled |
| Compression Ratio |
18:1 |
| Combustion System |
Electronically controlled high-pressure common-rail |
Engine Dimensions
| Length |
1305 mm |
| Width |
813 mm |
| Height |
1145 mm |
| Weight - Net Dry |
700 kg |
Technical route
- Electrically controlled high voltage common rail technology is adopted to meet non-road three stages, road four/five, Beijing five emissions.
Fuel system
- Weichai’s special "three-level nanny filter" completely removes the water and impurities from the fuel, reducing the failure rate of the fuel system significantly.
Lubrication system
- It can realize the remote signal transmission of oil filter, effectively improving the arrangement and maintenance convenience of the vehicle.
Intake system
- The radial seal multi-level compound dust filter is used for easy replacement and maintenance of filter element and higher filtration efficiency.
Drivetrain
- The rear-mounted gear system with shear gear design ensures smooth running and low noise.
High comfort
- The standard unique "engine block vibration damping web” applies the reasonable cambered surface design and effective reinforcement arrangement, improving the stiffness of the skirt; the reinforced oil sump features high strength and modality, effectively suppressing the radiation noise.
Maintenance period
- 500h oil change period is ensured, reducing the usage cost.
Environmental adaptability
- The engine functions normally at -35°C ~ 50°C and more than 5,000m above sea level.
