Cutaway view and specifications
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When the rail pressure regulating valve is not supplied with current, the rail pressure regulating valve is opened. This then completely eliminates the rail pressure. Activation of the rail-pressure regulating valve means that the coil is supplied with current. This energizes the armature plate and the pressure pin presses the valve ball into the valve seat. The stronger the valve ball is pressed into the valve seat, the less fuel can flow into the return flow.
| Index | Explanation |
|---|---|
| 1 | two-pin plug connection |
| 2 | Armature plate |
| 3 | Opening spring |
| 4 | Coil for electromagnet |
| 5 | Bore hole towards the high-pressure side |
| 6 | Ball valve |
| 7 | Bore hole to return line |
| 8 | Pressure pin |
Observe the following target values for the rail pressure regulating valve:
| Size | Value |
|---|---|
| Supply voltage | 12 Volts |
| Duty cycle | 30 to 95% |
| Coil resistance at 20 °C | 3.42 to 3.78 Ω |
| Maximum output current | 1.7 A |
| Temperature range | -40 °C to 130 °C |