2, Category
According to the formation of different high-pressure fuel injection, electronically controlled common rail fuel injection system there are two basic types, that is, and the High Pressure Common Rail
Pressure Common Rail.
(1) high pressure common rail system. High-pressure pump will be delivered to common rail pressure to eliminate the pulse pressure, then delivered to the fuel injection
; When the electronic control devices as required to issue directions signal, high-speed solenoid valve (s response about 200) or open quickly
Closed, thereby control the injector work, that is, according to the requirements set out Tingfen or high-pressure fuel.
(2) pressure in the common rail systems. In the pressure pump (pressure of 10 to 13 MPa) pressure in the common rail fuel transported to the
Elimination of the pulse pressure, then distributed to the plunger with a supercharger injector; when the high-speed switching valve solenoid valve receive electronic control equipment
Purchase orders sent the signal, and rapidly opened or closed to control the fuel for the work quickly through a high-pressure plunger booster
Use, will come in the common rail fuel pressure from the pressure of high pressure (120 to 150 MPa) emitted or Tingfen. High Pressure Common Rail
Pressure in the common rail system and the system's main discrimination, access to high-pressure fuel manner different from the former high-pressure fuel pump direct,
With the latter, was supercharged supercharged plunger.