Diesel Fuel Injection Pump 22100-1C190 VE6/10F1900RND964 Auto Engine Part

Oil pumps have different types and characteristics in different equipment and systems, but the overall function is to transport oil from one place to another and provide a certain pressure and flow rate for the oil to meet the working needs of the equipment. The following is a specific introduction:

Role in automobile engines
Fuel supply: The main function of an automobile fuel pump is to suck the fuel out of the fuel tank and then deliver the fuel to the engine's fuel injection system through the oil pipe. In this process, the oil pump needs to overcome the resistance of the fuel pipeline to ensure that the fuel can reach the engine smoothly and provide the necessary fuel for the engine's combustion.

Establish oil pressure: In order for the fuel to be injected into the engine combustion chamber at a suitable pressure, the fuel pump needs to establish a certain oil pressure. Different types of engines and fuel injection systems have different requirements for fuel pressure. Generally speaking, the fuel pump of a gasoline engine needs to increase the fuel pressure to about 300-500 kPa, while the fuel pump of a diesel engine requires a higher pressure, usually at several hundred bar or even thousands of bar. Only under the appropriate oil pressure can the fuel be sprayed into the combustion chamber in a good atomized state, fully mixed with the air, and achieve efficient combustion.

Keep the fuel system pressure stable: During the operation of the engine, the fuel demand is constantly changing. The oil pump needs to automatically adjust the fuel supply and oil pressure according to the engine's working conditions, such as idling, acceleration, deceleration, etc., to keep the fuel system pressure stable. For example, when the engine accelerates, more fuel is needed, and the oil pump will increase the fuel supply and increase the oil pressure; while at idle, the oil pump will reduce the fuel supply and reduce the oil pressure to ensure that the fuel system is always in a stable working state.

Role in the hydraulic system
Provide power source: The oil pump in the hydraulic system is the power source of the entire system. It converts the mechanical energy output by the prime mover (such as motor, engine, etc.) into hydraulic energy, and provides power for the hydraulic cylinder, hydraulic motor and other actuators in the hydraulic system. Through the work of the oil pump, the oil is drawn out of the oil tank and pressurized, so that the oil has a certain pressure energy, and then the high-pressure oil is delivered to each actuator to drive them to complete various actions, such as the extension and contraction of the hydraulic cylinder, the rotation of the hydraulic motor, etc.

Control flow: The hydraulic oil pump can adjust the output oil flow according to the needs of the system. Different hydraulic systems have different flow requirements at different working stages. For example, in the hydraulic system of a machine tool, a larger flow is required for rapid feeding, while a smaller flow is required for precise positioning. The oil pump can achieve precise control of the system flow by changing its own displacement or cooperating with other flow control elements to meet the requirements of different work tasks.

Maintaining oil circulation: The oil pump in the hydraulic system is also responsible for maintaining the circulation of the oil. It continuously sucks the oil in the tank and transports it to the system, and at the same time brings the used oil in the system back to the tank, so that the oil forms a closed circulation loop in the system. During the oil circulation process, the oil pump can also play a certain filtering and heat dissipation role. By transporting the oil through the filter, impurities and contaminants in the oil are removed to ensure the cleanliness of the oil; at the same time, the oil will also exchange heat with the air in the tank during the circulation process, which has the effect of heat dissipation, preventing the oil temperature from being too high and affecting the performance and reliability of the system.

Role in the lubrication system
Transporting lubricating oil: In the lubrication system of mechanical equipment, the role of the oil pump is to extract the lubricating oil from the oil pool and then transport the lubricating oil to various parts that need lubrication through the oil pipe, such as the crankshaft, camshaft, bearings, etc. of the engine. Through the continuous operation of the oil pump, these key components can always be well lubricated during operation, reduce friction and wear, and extend the service life of the equipment.

Establishing lubrication pressure: In order for the lubricating oil to effectively reach each lubrication point and form a sufficient oil film on the friction surface, the oil pump needs to establish a certain lubrication pressure. Appropriate lubrication pressure can ensure that the lubricating oil forms a stable oil flow inside the equipment, overcome the influence of factors such as gravity and centrifugal force, and ensure that the lubricating oil can be evenly distributed on various friction surfaces. For example, in the gearbox of large industrial equipment, the oil pump needs to increase the lubricating oil pressure to a certain value so that the lubricating oil can smoothly reach the high-speed rotating gears and bearings to form good lubrication protection.

Monitoring and protection: The oil pump can also play a certain monitoring and protection role in the lubrication system. Some oil pumps are equipped with pressure sensors and other devices to monitor parameters such as lubricating oil pressure and flow in real time. When the lubricating oil pressure is too low or the flow is abnormal, the oil pump will send an alarm signal through the control system to remind the operator to check and deal with it in time to prevent equipment failure due to lack of oil or poor lubrication.