What is "common rail"

Sora \So"ra\, n. (Zo["o]l.) A North American rail ( Porzana Carolina) common in the Eastern United States. Its back is golden brown, varied with black and white, the front of the head and throat black, the breast and sides of the head and neck slate-colored. Called also American rail, Carolina rail, Carolina crake, common rail, sora rail, soree, meadow chicken, and orto.

King sora, the Florida gallinule.

Common rail direct fuel injection is a direct fuel injection system for petrol and diesel engines.

On diesel engines, it features a high- pressure (over ) fuel rail feeding individual solenoid valves, as opposed to a low-pressure fuel pump feeding unit injectors (or pump nozzles). Third-generation common rail diesels now feature piezoelectric injectors for increased precision, with fuel pressures up to .

In petrol engines, it is used in Gasoline direct injection (GDI) engine technology.

In electrical engineering, a common rail (shortened to COM) is a shared path between different electrical routes in an electrical circuit. For example a device or circuit board might have a power rail or a ground rail, which components are attached to, so all the electrical charge flowing through different components is drawn from/collected into a single conductor line. The ATX standard for PC power supplies defines a set of common rails as to ground the power, these rails are designated as COM and all have black wires.

Common rail may refer to:

• Common rail direct fuel injection
• Common rail (electricity)
• Common rail drinks