WP8 series bus engine
Weichai bus engines, with the displacement ranging from 2.3L to 12L and the power ranging from 88kW to 338kW meet Euro V, Euro VI and other emission standards, and are applicable to various buses with a length greater than 5m such as school buses, passenger buses, private buses, touring buses, public buses, hybrid electric buses, and special buses. These new-generation power products (RA/WP2.3N/WP3N/WP4.1N/WP4.6N) are applicable to rural public buses, minibuses, long-nose school buses, high-end MPVs, European light buses, and characterized by high reliability, strong power, fuel saving and environmental protection.
WP8 series bus engine
Product parameters
| Mode | Displacement （L） |
Number of valves per cylinder | Rated power/speed (kW/rpm) |
Maximum torque/speed (N.m/rpm |
Min. fuel consumption on external characteristic curve (g/kW·h) |
Technical route | Applicable model |
| WP8.320E51 | 7.8 | 4 | 235/2100 | 1300/1200-1600 | 188 | Common rail + SCR | 10–12M passenger buses、10–12M public buses、private buse |
| WP8.340E51 | 7.8 | 4 | 250/2100 | 1400/1200-1600 | 188 |
Common rail + SCR
|
10–12M passenger buses、10–12M public buses、private buse |
| WP8.320E61 | 7.8 | 4 | 235/2100 | 1280/1200-1600 | 188 | EGR + DOC + DPF + SCR | 10–12M passenger buses、10–12M public buses、private buse |
| WP8.350E61 | 7.8 | 4 | 257/2100 | 1400/1200-1600 | 188 |
EGR + DOC + DPF + SCR
|
10–12M passenger buses、10–12M public buses、private buse |
Product advantages
Power performance
- The engine is able to achieve high output torque at low speed, and has better power performance, gradeability and acceleration performance when compared with similar products.
Economy
- The fuel economic zone shifts to the low speed range, and the reasonable matching of transmission and axle allows the engine operating speed to be distributed in the low speed range, so as to reduce fuel consumption.
Comfort
- Low vibration and low noise (2 dB lower than that of competing products).
Adaptability
- One alternator, two alternators, three alternators and the A/C can be arranged at the front end structure to meet the vehicle requirements.
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