What is a high pressure oil pump?
A high-pressure fuel pump is a device used to generate high-pressure fuel in the fuel system of an internal combustion engine. It is commonly used in direct injection fuel systems. The main function is to suck fuel from the fuel tank and then send it into the fuel injector or injector by increasing the pressure to achieve fuel injection and atomization.
How much does it cost to replace a high-pressure oil pump?
The cost to replace a high-pressure oil pump will vary depending on the vehicle model, engine type, labor rates in your area, and the brand used. The cost to replace a high-pressure oil pump can range from $50 to $500. High-end models or special models of high-pressure oil pumps may result in higher costs.
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Introduction to High Pressure Oil Pump
The High Pressure Oil Pump of Zhenhua Auto Parts Company is a vital component in the automobile fuel system. It is mainly responsible for pressurizing low-pressure fuel to extremely high pressure, and then conveying it to the fuel injector to realize accurate fuel injection. In modern engine technology, especially diesel engines and some high-performance gasoline engines, the performance of high-pressure oil pump directly affects the atomization effect, injection pressure and injection timing of fuel, thus playing a key role in engine power output, fuel economy and emission control. The high-pressure oil pump can run stably under various working conditions, such as frequent starting and stopping of urban roads, high-speed driving of expressways, and heavy-duty climbing, so as to ensure that the engine can obtain sufficient and appropriate pressure fuel supply.
Features of High Pressure Oil Pump
High-efficiency pressure lifting capacity
Advanced plunger or rotor structure design (depending on the specific model) is adopted, which has excellent pressure lifting efficiency. It can quickly raise the fuel pressure from low pressure to high pressure above certain MPa, meet the strict requirements of modern engines for high fuel injection pressure, ensure the fine atomization effect of fuel at the fuel nozzle, promote full combustion and improve the engine power performance.
High-precision pressure control
It is equipped with a precise pressure regulating device, which can accurately control the output fuel pressure according to the instructions of the engine electronic control unit (ECU). The accuracy of pressure control can reach certain MPa, which can adjust the pressure in real time under different working conditions, such as reducing the pressure at idle speed to reduce energy consumption and emissions, and rapidly increasing the pressure at acceleration or high load to ensure power output, effectively improving the running stability and fuel economy of the engine.
High reliability and durability
Select high-strength, wear-resistant and corrosion-resistant materials to manufacture key components, such as high-quality aluminum alloy or cast iron for pump body, and special alloy steel for plunger, rotor and other moving parts, which are surface hardened. After strict durability test, it can run stably for a long time in harsh working environment, withstand high temperature, high pressure and high frequency working cycle, effectively reduce failure rate, prolong service life and reduce vehicle maintenance cost.
Application
Widely used in all kinds of diesel engine vehicles, including commercial trucks, buses, construction machinery, agricultural machinery, etc., but also suitable for some high-performance gasoline engine models using in-cylinder direct injection technology.
In the field of commercial trucks, such as Futian Ou Man, Jiefang J6, Dongfeng Tianlong, etc., it ensures strong power output and stable operation during long-distance transportation;
In terms of buses, such as Yutong Bus and Jinlong Bus, it ensures the comfort of passengers and the efficient operation of vehicles;
For construction machinery, such as excavators, loaders, cranes, etc., meet their high requirements for power during heavy-duty operations; In high-performance gasoline engine models, such as BMW M series, Mercedes-Benz AMG series and other sports cars and high-performance cars, it helps to achieve excellent power performance.
Target clients
Automobile manufacturer: To provide high-quality High Pressure Oil Pump for automobile OEMs for new car assembly, to ensure the high performance and reliability of engine fuel system, and to enhance vehicle quality and market competitiveness. Cooperate closely with automobile manufacturers, participate in engine research and development projects, and customize and develop suitable high-pressure oil pump products according to the power requirements and technical specifications of different models.
Auto parts dealers: meet their bulk purchasing needs and provide stable supply for their downstream customers, such as auto repair shops and after-sales service centers. With high-quality products and rich product lines, it helps dealers occupy a favorable position in the auto parts market, expand their business scope and increase their market share.
Automobile repair shop and after-sales service center: provide reliable replacement high-pressure oil pump with original quality or equivalent performance for maintenance enterprises, help maintenance technicians to quickly solve problems such as engine starting difficulty, insufficient power and jitter caused by high-pressure oil pump failure, improve maintenance efficiency, shorten customer vehicle maintenance time and enhance customer satisfaction.
Maintenance
Check the cleanliness of fuel regularly
Check whether the fuel filter is blocked every certain mileage (5000-10000 km is recommended). If there are too many impurities, replace the filter in time to ensure the cleanliness of the fuel entering the high-pressure oil pump, so as to prevent impurities from wearing the parts in the pump and affecting the performance and life of the oil pump.
Check the tightness of the oil pump
Regularly check the sealing parts of the high-pressure oil pump, such as oil inlet and outlet, plunger seal, etc., to see if there is fuel leakage. If leakage is found, the seal should be replaced in time to avoid pressure drop and insufficient power caused by fuel leakage, and to prevent fuel leakage from causing potential safety hazards.
Maintenance of lubricating parts
Properly lubricate the moving parts of the high-pressure oil pump according to the mileage specified by the manufacturer (if necessary). For example, some types of oil pumps may need to add or replace special grease regularly to ensure smooth operation of moving parts, reduce wear and prolong service life.