What is a fuel injection rail?
fuel rail in Automotive Engineering A fuel rail is high pressure tubing which takes fuel to the injectors in an internal combustion engine. The fuel rail is the long, round metal bar that runs along the top of the injectors and is held onto the manifold with a few bolts.
How does the fuel rail injector system work?
How fuel rail works 1 It supplies the injectors with fuel. 2 The high-pressure pump applies system pressure to the fuel, which the fuel rail then delivers to the injectors. 3 A high-pressure pump adjusts the pressure in the fuel rail whenever necessary.
What are the components of a common rail injection system?
Components used in the common rail injection system are: 1 Fuel tank: It is same as available in other automobiles where the fuel is stored. 2 Fuel pump: 3 High Pressure fuel pump or Injection pump: 4 Governor: 5 Injector:
How does a high pressure pump work on a fuel rail?
The high-pressure pump applies system pressure to the fuel, which the fuel rail then delivers to the injectors. A high-pressure pump adjusts the pressure in the fuel rail whenever necessary. A high-pressure sensor on the rail measures the fuel pressure as a control variable.
How do you install fuel injectors?
Install the new fuel injectors into the fuel pipe by twisting them into place so that the electrical connectors face away from the fuel pipe. Coat the injector bores in the cylinder head with light machine oil. Install the spacers and connect the fuel pipe to the cylinder heads.
What is the most common fuel injection system?
As technology advances, direct injection engines may become easier to manufacture, but, for now, sequential multi-port injection remains the most common fuel injection system in cars today. It provides the right mix of efficiency and affordability for most applications.
How does common rail injection work?
The common rail-fuel-injectors are controlled by the vehicle’s Engine Control Unit. When the injectors are activated by the ECU via a signal, a hydraulic valve made up of a plunger or nozzle, either hydraulically or mechanically, opens and sends fuel into the engine cylinders.
What is common rail direct injection?
Common rail. Common-rail direct fuel injection is a direct fuel injection system for diesel engines. On diesel engines, it features a high-pressure (over 100 bar or 10 MPa or 1,500 psi) fuel rail feeding solenoid valves, as opposed to a low-pressure fuel pump feeding unit injectors (or pump nozzles).