DRV Valve

The DRV valve is a pressure regulating valve for high-pressure diesel systems, mainly composed of components such as a coil, iron core, valve body and control circuit. When the DRV valve is not energized, no current flows through the coil, so no magnetic field is generated, the passage between the valve seat and the valve body is open, and rail pressure cannot be established. When the coil is energized, a magnetic field is generated, which attracts the armature core to move and blocks the passage of the valve body, preventing fuel from flowing or allowing only a small flow rate, thus causing rail pressure to rise. The opening degree of the valve seat hole directly determines the pressure level in the fuel rail. In this