WEICHAI WD10G220E21 loader engine Introduction
Combustion and Fuel System
Direct Injection Combustion Chamber: Utilizes direct injection technology, offering excellent fuel economy and starting performance.
Unit pump fuel system or high-pressure common rail system (depending on production batch and specific version). Early WD10G series models often used the reliable and durable Bosch unit pump system, providing high injection pressure and ensuring atomization quality.
Turbocharging and Intercooling: Standard configuration includes an exhaust gas turbocharger and intercooler, effectively increasing intake air density and engine power, improving fuel consumption and emissions.
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Main technical features and parameters
Key Performance Parameters (Typical Values)
Displacement: 9.726 liters
Bore × Stroke: 126mm × 130mm
Rated Power/Speed: 162kW (220 hp) / Rated speed is typically 2200 rpm or 2300 rpm (refer to nameplate for specific details). This is also the meaning of "220" in its model designation.
Maximum Torque/Speed: Approximately 830-850 N·m / Typically in the 1400-1600 rpm range. High torque at low speeds is a prominent feature, making it ideal for heavy-duty applications in construction machinery.
Idle Speed: Typically 750±50 rpm.
Structure and Materials
Block: Constructed from high-strength cast iron, providing sufficient rigidity and the ability to withstand high loads.
Crankshaft: Fully balanced forged steel crankshaft, ensuring smooth operation and high reliability.
Piston: Aluminum alloy pistons, possibly with wear-resistant and heat-resistant ring groove retainers to extend service life.
Valve: Two valves per cylinder (2V), simple structure, easy to maintain.
Performance Characteristics
Material application: The cylinder body is made of high-strength cast iron material, which has high strength and good wear resistance, extending the service life of the engine. The valve seat and guide tube are made of high-temperature alloy material to enhance heat resistance and wear resistance.
Lubrication and heat dissipation: Special lubrication system and heat dissipation system can effectively reduce oil consumption and heat load, and improve work efficiency and stability.
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