Electronic Control Distribution Pump Fuel System Diesel Engine

The high efficiency and energy-saving of diesel generators have made the diesel engine of automobiles increasingly apparent. The electronic fuel injection system is currently the main development feature of diesel engines and a powerful means to meet stricter emission regulations.

genset for sale

With the implementation of Euro III and IV emission standards, it is required to increase the pump end pressure of the distribution pump to over 100MPa. The original mechanical structure of the distribution pump can no longer meet the above requirements, and the mechanical structure of the distribution pump is facing new changes. A new type of VP44 internal cam electronic control distribution pump has been developed on the market. It adopts an internal cam, radial opposed plunger oil supply, and a distribution rotor rotating distribution structure. Using high-speed solenoid valves to directly control the high-pressure fuel supply. The pump end pressure is 100MPa, and by utilizing the pressure wave effect formed in the high-pressure oil pipe, the fuel injection pressure can reach 180MPa.

The fuel supply advance angle is controlled by a high-speed solenoid valve and can control the fuel supply rate and pre injection. At the same time, the hydraulic efficiency of this pump has reached a fully optimized level, and the power of the diesel generator equipped with this pump is much higher than that of the diesel engine equipped with a conventional distribution pump, but its peak driving torque is still at the same level.

The VP44 electronic distribution pump initially used three radial opposed plungers for oil supply, with a plunger diameter of 6.0mm and a cam lift of 3.5mm. Later, in order to increase the fuel injection pressure under partial load, it was improved to use two radially opposed plungers for fuel supply. The plunger diameter was increased to 7.0mm, and the cam lift was increased to 4.0mm. The maximum fuel supply for each cycle is 40-50mL, with a pre injection fuel volume between 1-3mL and an idle fuel injection volume of 4-5mL. The maximum fuel supply advance angle is 15 ° (oil pump shaft angle). It is generally suitable for diesel generators with 3, 4, 5, and 6 cylinders, a single cylinder displacement of less than 1L, and a maximum power of less than 250kw, and can meet the requirements of Euro III and Euro IV emission standards.

In order to further reduce emissions under partial loads, in addition to the measures taken by the oil pump, significant improvements have also been made to the fuel injectors: for the first time, a small pressure chamber type fuel injector and a dual directional needle valve have been adopted, greatly improving the formation of fuel jets, especially in the case of small fuel injection volume and needle valve lift under partial loads.

Dingbo Power was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. If you want get more information, please feel free to send email to sales@dieselgeneratortech.com we will pay highly attention on your question.

Diesel Generator Power Ratings: Standby vs Prime vs Continuous

Diesel generator sets are commonly used in a variety of sectors due to their dependable performance and high efficiency. They can be used for emergency power supply in the event of a power cut or used in places without connection to a power grid. When selecting a diesel generator for your home or business, you need to consider many factors, such as generator’s ratings. In this article, we’ll explain the three basic rating types - standby, prime, and continuous in diesel generators. ISO-8528-1:2018 defines basic generator set rating categories based on four operational categories: Emergency Standby Power (ESP), Prime Power (PRP), Continuous Power (COP) and Limited-Time Running Prime (LTP). Read on and learn the application of power ratings for engines used in generating sets. Standby Power Rating Standby Power(ESP) is used to supply emergency power when the external power supply is interrupted, such as power outages. Standby power rated generators can supply reliable electricity as t...

How to Choose a Household Mini Generator

With the improvement of people's living standards, there are more and more household appliances, such as rice cookers, microwaves, kettles, refrigerators, air - conditioners, washing machines, etc. It can be said that every household has them. But what if there is a power outage? These appliances won't work properly, and our lives will be greatly disrupted. How can we avoid this? We can use household mini - generators to provide convenience in power consumption. So, how to choose a good household mini - generator? Consider the noise level Since it is for household use, when choosing a household mini - generator, we need to check whether the noise will affect the neighbors. Generally, the seller will demonstrate the performance of the generator in advance. A good household generator can reduce noise by about 80%. Choose a generator with a moderate price Due to different brands, there are significant differences in power, and consequently, the price differences of househ...

How to Choose Efficient Diesel Generators for the Film and Television Industry?

In the film and television industry, the stability of the electricity supply during filming is crucial. Whether the equipment are the cameras or the lighting equipment on the filming site, or the post-production equipment, they all need stable and reliable power support. Unstable or interrupted power can result in interrupted filming, damage to equipment, and even affecting the progress and quality of the entire project. Therefore, investing in high-efficiency diesel generator sets has become an important measure for the film and television industry to ensure the reliable power supply for shooting. Determine the power requirements Before choosing a diesel generator set for the film and television industry, it’s necessary to figure out the total power needs, including the electricity demand of the shooting location, the total power of the electrical equipment and the time of using electricity. Also consider whether there are special needs for the generators such as low noise level and...

Diesel Generator Tech

Search This Blog