Function oF The EFI-Diesel Fuel Pressure Sensor, Gnewscar – Rail fuel on the common rail EFI-Diesel is equipped with a pressure sensor for supply rails and a Pressure limiter. In accordance with Common Rail’s electronic fuel injection system work, the fuel rail will store and maintain high fuel pressure between the fuel pump and the injector, so that the component is able to detect necessary changes in fuel pressure.
How the Fuel Pressure Sensor works and functions
Fuel Rail Pressure Sensor
Fuel Rail Pressure Sensor and pressure limiter are attached to the supply manifold. The purpose of the fuel rail pressure sensor is to detect fuel pressure (fuel pressure) inside the fuel rail and transmit the signal to the engine control module (ECM). Based on the signal signal sent, the ECM will monitor fuel pressure on the fuel rail through the fuel rail pressure Regulator (FRP) of the fuel pump.
The FRP Sensor is mounted on the fuel supply rail and its task is to detect the fuel pressure inside the fuel rail by changing the voltage pressure signal and sending the signal to the ECM. ECM monitors the signal voltage of FRP sensors. When high fuel rail pressure (fuel pressure on the high rails), the signal voltage is also high and when the fuel pressure is low, the signal voltage is also low.
The Fuel Pressure Sensor EFI-Diesel ECM function will calculate the actual pressure of the voltage signal on the supply manifold (fuel pressure) and use the result to monitor fuel injection and other control tasks.
The pressure relief valve will mechanically open the valve to release pressure when fuel pressure on the fuel rail is very high. Pressure limiter releases pressure by opening the valve if the excess pressure is high. The valve will open when the pressure inside the rail rises to about 220 MPa (32,000 psi) and will close again when the fuel pressure drops to about 50 MPa (7,250 psi). The next fuel will be returned to the tank via pressure barrier
Fuel Pressure Regulator (FRP)
The Engine control Module (ECM) controls a linear type of fuel rail pressure regulator (uptime depends on current working on FRP regulators), especially with regards to the amount of fuel supplied to the piston. High pressure. When the required amount of fuel is reached, the rail pressure is lowered, the load of the bait pump decreases.
When the current flows through the FRP, variable electric motion force is generated as a function of the charging rate, the solenoid Plener movement and changes in the opening of the fuel trajectory and the adjustment of fuel quantity (amount of fuel). Fuel). When the FRP regulator is disabled, the spring is re-stretched, fully opening the fuel trajectory and sending gasoline to the diver (full and full flow).
How it works and functions of the Fuel Pressure Sensor EFI-Diesel by turning on/off the FRP regulator, the fuel is supplied in an amount that corresponds to the actual duty cycle and fuel is squeezed by the fuel pump pusher.