The common rail injector

The common rail injector is a critical component in the fuel supply system of diesel engines, particularly in modern high-pressure common rail diesel engines. In traditional diesel engine fuel systems, the direct connection between the injector and the pump limits the injection pressure. By contrast, common rail systems connect all injectors to a shared "common rail" that maintains a consistently high pressure independently. This configuration allows for precisely controlled fuel injection under various operating conditions. The primary functions of common rail injectors are as follows: 1. Fuel metering: accurately control the quantity of fuel injected into the combustion chamber based on the engine's operational state. 2. Injection timing: precisely manage the timing of fuel injection according to the engine's requirements. 3. Injection pressure regulation: leverage the high-pressure environment provided by the common rail system to achieve high-pressure fuel injection, thereby enhan…