A fuel rail is a component in a fuel injection system that is responsible for distributing fuel to the injectors. It is typically a hollow metal tube that runs parallel to the engine's cylinders, and is connected to the fuel pump and fuel filter on one end, and to the injectors on the other.

The fuel rail is the common reservoir of high pressure fuel that feeds into all the injectors on one side of a fuel-injected engine. Fuel is pumped into one end, and as each injector is triggered in sequence, they spray fuel at a consistent pressure.

Common rail direct fuel injection is a direct fuel injection system built around a high-pressure (over 2,000 bar or 200 MPa or 29,000 psi) fuel rail feeding solenoid valves, as opposed to a low-pressure fuel pump feeding unit injectors (or pump nozzles).

2024年11月2日 · Fuel rails play a critical role in delivering fuel to the engine’s injectors, ensuring optimal performance and efficiency. They function through a series of well-coordinated processes that guarantee that the right amount of fuel reaches each injector at proper pressure.

The fuel rail supplies the injectors with fuel with minimal pressure fluctuations between individual injections.

Shop for the best Fuel Injector Rail for your vehicle, and you can place your order online and pick up for free at your local O'Reilly Auto Parts.

2023年9月17日 · The fuel rail is a critical component of an internal combustion engine’s fuel delivery system, responsible for supplying fuel to the individual cylinders. Understanding the technical specifications and DIY aspects of fuel rail 101 is essential for maintaining your engine’s performance and efficiency.