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Yuchai engine YC4G Series Bus
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Engine Application
Bus
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Engine Category
Yuchai
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The YC4G series engine is used in buses. It is developed based on the FEV technology platform, which has the following features and benefits. Firstly, they share main components with YC6G series diesel engines, making replacement parts easier to operate. Secondly, the forged crankshaft and dry sleeve liners improve the reliability of the engine. Thirdly, the crankshaft damper pulleys can reduce the torsional vibration of the crankshaft, thereby effectively improving reliability. Next, dual-balance shaft unit can eliminate the vibration caused by the movement of the piston. Finally, Honeywell turbochargers equipped with bypass valves can provide quick response and higher performance.
Technical Specifications
| Engine Model | YC4G170-20 | YC4G180-20 | YC4G180-30 | YC4G200-30 | YC4G220-30 | YC4G180-40 | YC4G200-40 |
|---|---|---|---|---|---|---|---|
| Configuration | Vertical, in-line, 4 stroke, water-cooled, direct injection | ||||||
| Bore × Stroke (mm) | 112×132 | ||||||
| Number of Cylinders | 6 | ||||||
| Displacement (L) | 5.2 | ||||||
| Aspiration | Turbocharged, inter-cooled | ||||||
| System | P-pump | BOSCH | BOSCH +SCR | ||||
| Rated Power /Speed (kW/r/min) | 125/2300 | 132/2300 | 132/2300 | 147/2200 | 162/2200 | 132/2300 | 147/2200 |
| Peak Torque/Speed (N.m/r/min) | 630/1500 | 660/1500 | 660/≤1400 | 720/≤1400 | 840/≤1400 | 660/1100～1600 | 720/1100～1600 |
| Min. fuel consumption with full load (g/kW.h) | ≤196 | ≤195 | |||||
| Noise (ISO 3744) dB(A) | ≤97 | ||||||
| Emission | Euro 2 | Euro 3 | Euro 4 | ||||
| Dry Weight (kg) | 450 | ||||||
| Application | 8~9m coaches, 7.8~9m city buses | ||||||
