Diesel Injector Fuel Injector 0445120314 Bosch for Man Truck/Bus Engine

1. Detailed explanation of automotive fuel injectors

Automobile fuel injector (see figure D itself is a normally closed solenoid valve (normally closed valve means that when there is no input control signal, the valve is always closed; while normally open valve means that when there is no input control signal, the valve It is always in the open state), and the opening and closing of the valve is controlled by a valve needle moving up and down. When the ECU issues a fuel injection command, its current flows through the coil in the fuel injector, generating a magnetic field to suck the valve needle up, so that the fuel can flow Spray from the injection hole.

The biggest advantage of injection fuel supply is that the control of fuel supply is very precise, so that the engine can have the best air-fuel ratio under any working conditions, not only to keep the engine running smoothly, but also the exhaust gas can meet the requirements of environmental protection regulations.

2. The necessity of cleaning

After the fuel system has been working for a period of time, the carbon deposits and gums formed by combustion will adhere to the fuel injector, causing the fuel injector to stick or even block. The impurities and dust in the air and gasoline will also cause the oil passage to be blocked or blocked, and finally form carbon deposits and deposits on the injector. The formation of carbon deposits and deposits is inevitable, but poor fuel quality, long-term engine idling and other reasons will lead to faster clogging of injectors.

The work of the injector plays a fundamental role in the power of the engine. Poor fuel injectors lead to poor work, serious carbon deposits in the cylinder, accelerated wear of the walls and piston rings, resulting in unstable idling, increased fuel consumption, weak acceleration, difficult starting, and excessive emissions. In serious cases, it will be completely blocked. Injectors, damage to the engine.