The structure of the fuel injector 1.Type and structure of injector: a. According to the structure of the fuel injection port, it can be divided into needle type and hole type. b. According to the coil resistance: high resistance (13 ~ 16Ω) and low resistance (2 ~ 3Ω) c, by use: MPI, SPI 6 d....

At present, the electronically controlled high-pressure fuel injection system mainly includes a single pump, a fuel injector and a common rail. my country's commercial vehicle diesel engines generally use single-pump common rail. 1. Electronically controlled unit pump The unit pump system is...

How Denso fuel injectors work: 1. Static closing stage: the electromagnet is not energized, and the hemispherical flat valve tightly seals the valve seat surface under the action of the spring force. Because the fuel introduced into cavity A and the fuel introduced into cavity B There is the...

The structure and parameters of the injector determine the quality of the spray. The spray should match the shape of the combustion chamber to promote the formation of a combustible gas mixture. The head of the syringe is exposed to high temperature gas, and the working conditions are extremely...

The electronically controlled injector is the most critical and complex component in the common rail system, and it is also the most difficult component to design and process. By controlling the opening and closing of the solenoid valve, the ECU injects the fuel from the high pressure fuel rail into the combustion chamber with the optimum injection timing, injection quantity and injection rate.

Removal of the fuel injection pump: 1. Clean working environment. The components of the diesel fuel injection pump are very precise and require mechanically flexible movements. Therefore, it should be avoided during disassembly, cleaning, assembly and adjustment. Avoid contact with dust and...

How the fuel injection pump works: The fuel pump sucks fuel from the mailbox pump, passes through the fuel filter with the oil-water separation device, and reaches the fuel inlet of the fuel injection pump. The oil pump allows the fuel to enter the lubrication and cooling circuit of the...

The shape and material properties of metal connectors We know that there are many accessories for the automatic transmission of the car, among which the automatic transmission is one of its main accessories, so do you know what each of its accessories does? Next, let's find out. First of all, we need to understand the main structure of the automatic transmission, which consists of a hydraulic torque converter, a hydraulic control system, a planetary gear transmission mechanism, an electronic control system, and a cooling and oil filter device.

The fuel injector should be checked and adjusted once after 700 hours of operation. If the opening pressure is lower than the specified value of 1Mpa or more or the head of the needle valve has serious carbon deposits, the needle valve should be removed and put into clean diesel oil to scrape...

(1) Axial needle electromagnetic injector When the fuel is injected, the armature drives the needle valve to rise about 0.1mm from its seat surface, and the fuel is sprayed from the precise gap. In order to fully atomize the fuel, a section of fuel injection shaft needle is ground at the front...