High Pressure Accumulator (Common Rail) - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

DI07-42

High Pressure Accumulator (Common Rail)

Description
The high pressure accumulator reserves the high pressure fuel. Simultaneously, the pressure changes due to the
delivery from HP pump and the fuel injection is diminished by rail volume. This high pressure accumulator is commonly
used in all cylinders. Even when a large amount of fuel leaks, the common rail maintains its internal pressure. This
ensures that the injection pressure can be maintained from when the injector opens.
Function
• Relieve the pressure pulsation
• Provide pressure information to ECU (fuel pressure sensor)
Specifications
• Material: Forged Steel
• Dimension: - Volume: 22 ± 1cc
- Length: Max. 397.7 mm
- Outer diameter: 25.3 mm
• Fuel pressure sensor Integrated type
- Sensor input voltage: 5 ± 0.1V
- Sensor output signal voltage: - 4.055 ± 0.125 V @ 1600 ± 15 bar
• Operating pressure range
- Normal condition: 0 ~ 1600 bar
- Max. Overpressure: 2100 bar
• Ambient temperature: - available within -40°C ~ 125°C
• Fluid temperature: -40 ~ 100°C under normal operating conditions
• Removal and installation: 10 times without any damage
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
- 0.5 ± 0.04 V @ 0 bar
- Spontaneous max. temperature after engine stops: 140°C (acceptable against total 15 hours)
Y220_07088
FUEL SYSTEM
DI ENG SM - 2004.4