High Quality Diesel Engine Parts 6 Cyl VE 1468376017 Diesel Pump Head Rotor 1 468 376 017

The pump head is the most critical part of the fuel pump system, which bears the important responsibility of precise control of fuel delivery, and its design and performance directly affect the efficiency and stability of the entire fuel supply system.

The pump head is mainly composed of pump body, plunger, inlet and outlet valves, spring and sealing components. Its material is mostly selected high-strength, wear-resistant and good corrosion-resistant metal materials to cope with the complex and harsh working environment.

In the process of use, when the engine is started, the camshaft starts to rotate and drive the plunger in the pump head. When the plunger goes down, the volume of the pump chamber increases and the pressure decreases, at which time the inlet valve opens under the effect of internal and external pressure difference, and fuel is sucked into the pump chamber. As the camshaft continues to rotate, the plunger upward, the pump chamber volume gradually decreases, the fuel is compressed, the pressure rises rapidly. When the pressure exceeds the spring preload of the outlet valve, the outlet valve opens, and the precisely measured and high-pressure compressed fuel is transported to the engine's fuel injection system through the outlet port, and is eventually injected into the cylinder to mix with the air and burn, providing power for the engine.

In the whole working cycle, the various parts of the pump head work together, and the precision requirements are extremely high. For example, the gap between the plunger and the pump body must be strictly controlled within a very small range to ensure good sealing and efficient pumping of fuel. The opening and closing timing of the inlet and outlet valves also need to be precise, otherwise it will lead to inaccurate fuel injection, unstable pressure and other problems, which in turn affects the performance of the engine, resulting in insufficient power, increased fuel consumption, emissions and other undesirable phenomena.

Whether in the car, ship, engineering machinery or other types of fuel power equipment, oil pump pump head are silently playing a key role. Its continuous and stable operation is to ensure the normal operation of the equipment, enhance the performance of one of the core elements, and because of this, the manufacturing process, quality control and routine maintenance of the pump head have extremely stringent requirements to ensure that it is in a variety of working conditions can be accurately and correctly complete the mission of fuel delivery.