Fuel Injection Pump Delivery Valve Springs are critical components in diesel fuel systems, ensuring precise fuel delivery and pressure control. These springs maintain valve closure to prevent fuel backflow, enhancing injection efficiency and engine performance. Proper spring tension is vital for consistent fuel supply and optimal combustion in the engine.

Key specifications and technical properties of Fuel Injection Pump Delivery Valve Springs and Fuel Systems:

Size: Typically ranges from 5 mm to 20 mm in diameter, depending on pump model.

Grade: High-grade spring steel (SAE 9254 or equivalent) for durability and fatigue resistance.

Viscosity: Fuel viscosity range: 1.3 to 4.1 cSt at 40°C (varies by fuel type).

Buoyancy: Not applicable; springs operate in a pressurized fuel environment.

Material: Hardened steel (carbon or alloy), often coated for corrosion resistance.

Spring Rate: 10-50 N/mm, ensuring precise valve seating and pressure control.

Operating Pressure: 150-300 bar (varies by fuel injection system).

Temperature Range: -40°C to +150°C for reliable performance.

Surface Treatment: Shot peening or nitriding for enhanced fatigue life.

Fuel Compatibility: Designed for diesel, biodiesel, or other specified fuels.