Volvo loader L90 and L120 injection pump , Iran

The fuel injection pump for Volvo L90 and L120 loaders is a precision mechanical unit designed to deliver high‑pressure diesel consistently to six cylinders at exact timing. Typical delivery pressures range from 1600 to 2200 bar depending on engine load and RPM. The pump rotor and plunger assembly are CNC machined with tolerances below ±0.005 mm to maintain volumetric accuracy across all injection events. Flow metering is controlled by a calibrated governor that adjusts quantity within ±3% of target volume under varying engine speeds. Bearings and seals are made from hardened steel and fluorocarbon elastomers respectively, ensuring resistance to wear and thermal cycling up to 300 degrees Celsius. Each pump undergoes bench testing for injection timing, leakage, and pressure stability before installation, minimizing variations that reduce combustion efficiency or increase soot formation.

In operational environments, a well‑maintained injector pump on L90 and L120 loaders contributes directly to torque and fuel efficiency. Fuel delivery timing variance is typically kept within ±0.2 degrees crank angle to prevent pre‑ignition or detonation. Pump drive gears are helical cut to reduce noise and extend service life beyond 8000 engine hours with correct filtration. Precision regulation of fuel quantity reduces particulate emissions by ensuring complete combustion and consistent cylinder pressures near 140 bar at peak load conditions. For heavy loader applications, any deviation greater than ±5% in delivery pressure can result in power loss or increased exhaust temperatures, indicating the importance of calibration and quality assembly. Injection pumps should be paired with high‑efficiency filtration down to 2 microns to protect internal components and preserve performance over extended work cycles.You can order and buy Volvo loader L90 and L120 injection pump from Iran by contacting us through whatsaap and email.
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