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What is the function of the fuel injector of a diesel generator?

What is the function of the fuel injector of a diesel generator?

The fuel injector of a diesel generator is an important component in the fuel supply system of a diesel engine to achieve fuel injection. Its function is to atomize the fuel into fine droplets according to the characteristics of the diesel engine mixture and inject it into the specific combustion chamber. Location. The fuel injector should meet the spray characteristics of different types of combustion chambers.

Closed injectors are widely used in high-speed diesel generators. This kind of fuel injector is mainly composed of fuel injector body, pressure regulating device and fuel injector. The fuel injection nozzle of the closed fuel injector is a pair of precision fittings composed of a needle valve and a needle valve body, and the matching clearance is only 0.002~0.004mm. For this reason, after finishing machining, paired grinding is still needed, so they cannot be interchanged in use. Generally, the needle valve is made of high-speed steel with good thermal stability, and the needle valve body is made of high-quality alloy steel with impact resistance.

According to the different structure of fuel injectors, closed fuel injectors can be divided into two types: hole injector and pin injector, which are used in different types of combustion chambers.