High Quality New Diesel Fuel Injection Pump 0460413012 Engine Parts 0 460 413 012

As the key hub of diesel engine fuel delivery, the structural design of the diesel oil pump directly determines the efficiency, precision and reliability of fuel supply. With the development of engine technology in the direction of high performance and low emissions, the structure of diesel oil pumps has been optimized and innovated to meet the increasingly demanding working conditions. Different types of diesel fuel pumps, with their unique structure, play a key role in various application scenarios.

The main structure of plunger type diesel oil pump contains plunger, pump barrel, inlet valve, outlet valve, camshaft and adjustment mechanism. Plunger and pump barrel constitute the core working chamber, the two precision cooperation, plunger surface by special treatment, with high hardness and abrasion resistance, to ensure that in the high-frequency reciprocating movement, sealing is good, effective prevention of fuel leakage, to maintain the high pressure environment in the pump chamber.
The inlet and outlet valves are designed as one-way valves, and the spring force of the inlet valve is precisely adjusted so that the valve can be opened in a timely manner to allow fuel to enter smoothly at low pressure, while the outlet valve opens quickly at high pressure to ensure that the fuel rushes to the injectors at sufficient pressure and effectively cuts off the return flow of fuel when it is closed to ensure the continuity and stability of fuel injection.
The camshaft is driven by the engine, and its contour curve is precisely designed to accurately push the plunger to do reciprocating motion according to the engine running rhythm, controlling the timing of fuel intake, pressure and return. The regulating mechanism flexibly adjusts the effective stroke of the plunger by changing the relative position of the plunger's slant groove and the return hole, and then precisely regulates the oil supply volume to adapt to the different working conditions of the engine such as idling, accelerating, and climbing, so as to realize the balance between fuel economy and power.

The key structure of distributing diesel oil pump has distributing rotor, distributing sleeve, vane, governor, pressure regulator, etc. The distributing rotor is the core rotating part. Distribution rotor is the core rotating parts, the surface distribution of fine oil channels, and the sleeve closely matching, high-speed rotation in turn connected to the cylinder injectors, to ensure that the fuel according to the order of ignition uniform distribution, to avoid differences in combustion of the cylinders lead to engine shaking.
The blades are closely fitted with the inner wall of the sleeve under the action of centrifugal force, which separates the pump chamber into several independent working chambers. With the rotation of the rotor, the volume of the working chambers changes to realize the fuel suction, compression and injection, and this dynamic sealing structure is compact and efficient and reduces the internal friction loss.
Based on the change of engine speed, the governor provides rapid feedback to adjust the fuel supply of the oil pump to prevent the speed from being too high or too low and maintain the stable operation of the engine; the pressure regulator monitors the fuel pressure in real time and ensures the constant injection pressure by adjusting the return flow to optimize the fuel atomization effect, improve the combustion efficiency and reduce the emission of pollutants.

The solid and reliable structure of the piston oil pump enables it to withstand the high-pressure demand of high-power engines, with a wide range of fuel supply adjustment, suitable for heavy-duty vehicles, construction machinery and other fields to ensure strong power output. The compact and lightweight structure of the distributor pump facilitates the integration of small engines, with good fuel distribution uniformity, accurate speed and pressure regulation, and can reduce energy consumption and noise while ensuring performance in light vehicles and agricultural machinery.

The structural characteristics of diesel fuel pumps are the crystallization of mechanical engineering and fluid technology. Plunger-type and distributor-type oil pumps have their own unique structure, and through subtle design to realize the precise supply of fuel, drive the engine to run efficiently. In-depth study of their structure, for future breakthroughs in the performance of oil pumps, application expansion to build a solid foundation to promote the development of the diesel power industry.