Denso 4D56 - 5 Rail; Outline

Operation Section
1
–
14
5. RAIL
5.1 Outline
z Stores pressurized fuel (25 to 180 MPa) that has been delivered from the supply pump and distributes the fuel to each cylinder injector.
A rail pressure sensor and a pressure limiter valve are adopted in the rail.
z The rail pressure sensor (Pc sensor) detects fuel pressure in the rail and sends a signal to the engine ECU, and the pressure limiter
controls the excess pressure. This ensures optimum combustion and reduces combustion noise.
Q001236E
Pressure Sensor
Pressure Limiter