Hot Selling Common Rail Injector 095000-0145 Fuel Injector Engine Parts for ISUZU 6HK1

As an important part of the electronically controlled fuel injection system of a diesel engine, the flow characteristics and the reasonableness of its operating performance have a direct impact on the emission performance of the engine. In this regard, the design and application of a test system for measuring the flow characteristics of diesel fuel injectors and the precise measurement of the corresponding dynamic and static flow characteristics under different outlet pressures are used to quickly find out the effect of outlet pressure on the flow characteristics of diesel fuel injectors. pressure on the flow characteristics of diesel fuel injectors, to provide an important basis and reference for the later scientific regulation and control of diesel fuel injectors.

The test system designed in this paper for measuring the flow characteristics of diesel fuel injector mainly contains the following two major functional modules, one is the static flow measurement function, and the other is the dynamic flow test function. The test system mainly contains the following four subsystems: sludge oil circuit system. The oil circuit system mainly contains fuel tank, common rail, flow meter and other components, mainly used to provide the corresponding injection medium to the diesel fuel injector. Among them, the oil tank in the specific application, mainly with the help of oil pumps, to the pressurised tank into a certain amount of injection media, and then, with the help of injection media, into the common rail into the corresponding high-pressure gas pressure.

In the gas circuit system. The pneumatic system is mainly composed of pneumatic pressure gauge, start-up check valve and variable stroke pneumatic cylinder, which is mainly used for the dry performance test of the system as well as the injection of the injection medium. By using the gas compression function, the air pump can scientifically regulate and control the electrical ratio, so as to achieve real-time monitoring and control of the gas pressure in the booster tank, so as to achieve the purpose of indirectly regulating and controlling the injection medium. In addition, through the use of the gas pressure gauge, the gas can be passed into the diesel fuel injector, in order to further improve the drying effect of the diesel fuel injector to lay a solid foundation.

The electronic control system. The electronic control system is mainly composed of the following parts, which are PLC, injector drive system, pressure sensor, through solenoid valve and pulse counter. This sub-system is mainly used for the real-time control of the operating status of the whole test system and the comprehensive collection of relevant data. By fully combining the PLC, pressure sensor and solenoid proportional valve, a systematic and complete closed-loop control device can be formed, and through the use of this device, the scientific regulation and control of outlet pressure can be realised. In addition, the pulse counter is mainly used to collect and store the number of pulses measured by the flowmeter, which is safely and reliably transmitted to the upper computer, and then the final flow rate value is accurately calculated by adopting the relevant arithmetic method.

In short, the injector drive system plays an important role in controlling and adjusting the operating status of the diesel injector worker. Elm software system. The software system is mainly composed of the following parts, respectively, the host computer, PLC. through the use of injector drive system, can be used over the RS232 communication mode, complete the design and development of the test system human-computer interaction interface, for the user to bring a good use experience. In conclusion, for the development technology and operation process of the test system, the measurement and control programme of the injector flow characteristic on-line test system is designed as shown in Fig. 1.