How does a fuel pump work in a common rail diesel system?
In a common rail diesel system, the fuel pump, often a high-pressure pump, acts as the system’s heart, pressurizing fuel to extremely high levels—often exceeding 2,000 bar (29,000 psi) in modern engines—and delivering it to a shared reservoir or “common rail.” This rail then supplies fuel at a constant, stable high pressure to electronically controlled …
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