WP2.3 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 products (WP2.3N/WP2.5N/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.
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Product parameters A
| 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 |
| WP2.3Q115E62 | 2.289 | 4 | 85/3200 | 280/1600-2400 | ≤197 | CR+DOC+DPF+Hi-SCR | 5.3-6m school bus |
| WP2.3Q145E62 | 2.289 | 4 | 105/3200 | 340/1400-2400 | ≤197 | CR+DOC+DPF+Hi-SCR | 5.3-6m school bus |
Product spectrum B
| model | Displacement ( L ) | Number of valves per cylinder | Rated power/speed (kW/rpm) |
Maximum torque/speed (N·m/rpm) |
External minimum fuel consumption (g/kW·h) |
Technical route | Suitable models |
| WP2.3Q115E62 | 2.3 | 4 | 85/3200 | 280/1600-2400 | 197 | CR+DOC+DPF+Hi-SCR | 5-6m school bus |
| WP2.3Q145E62 | 2.3 | 4 | 105/3200 | 320/1400-2400 | 197 | CR+DOC+DPF+Hi-SCR | 5-6m school bus |
| WP2.3Q145E62 | 2.3 | 4 | 105/3200 | 340/2200-2400 | 197 | CR+DOC+DPF+Hi-SCR | 5-6m school bus |
Product advantages
Emission requirements
- Meet E VI emissions.
Economical
- The economic speed zone covers 1400-2400r/min, and the low fuel consumption zone is wider.
Dynamic
- The torque in the medium and low speed range is increased, and the vehicle starts to accelerate quickly.
- The maximum torque is 340N·m, which meets the power needs of 5-6 meters school buses.
Reliability
- Pistons, bearings and other main parts are upgraded materials, and high-quality suppliers of Weichai system are adopted.
- Rigorous and perfect test verification of bench, three high, and vehicle drum to ensure engine reliability.
Comfort
- Noise-reducing designs such as high-precision gears and closed flywheel housings reduce engine body noise.
- Electronically controlled multiple injection is used to reduce the combustion noise of the engine.
- Engine semi-anechoic chamber and other test resources to ensure the excellent NVH performance of the engine.
Adaptability
- The front-end gear train of the engine has been optimized, and the whole vehicle can be equipped with a variety of accessories to enrich the user’s choice.
WP2.3 series bus engine
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