Dimension - 11"
Weight  - 140 gm
 
Overview of Fuel Injection Systems
Fuel injection systems deliver fuel into an internal combustion engine’s combustion chamber with precision, replacing older carburetor systems for better efficiency, performance, and emissions control. They consist of components like fuel pumps, injectors, fuel rails, and pipes, controlled by an electronic control unit (ECU).
 
Types of Fuel Injection Systems
Single-Point (Throttle Body) Injection: Uses one or two injectors in the throttle body to deliver fuel into the air intake manifold. It’s simpler but less precise.
Multi-Point (Port) Injection: Each cylinder has its own injector near the intake port, improving fuel delivery precision.
Direct Injection (GDI): Injects fuel directly into the combustion chamber, common in modern gasoline and diesel engines for higher efficiency.
Common-Rail Injection: A high-pressure fuel rail supplies injectors, widely used in diesel engines and some modern gasoline engines.
 
Fuel Injection Pipe ("Paip")
The fuel injection pipe, or "paip," is a critical component that delivers pressurized fuel from the fuel pump or rail to the injectors. For example:
In vehicles like the Proton Saga BLM, FL, Gen2, Persona, Satria Neo, Waja, or Exora CPS, the fuel injector pipe (e.g., part numbers PW811776 or PW812013) connects the fuel rail to the injectors, ensuring proper fuel flow.
In diesel engines, jacketed fuel injection pipes are used, especially in marine applications, to contain high-pressure fuel and prevent leaks, with an outer jacket collecting any leakage for safety.
Manufacturers like Dinesh Engineering Corporation produce diesel engine injection pipes in various gauges (e.g., 12 to 18 gauge) for durability and corrosion resistance, suitable for engines like Lister or Kirloskar.
 
How It Works
Fuel Pump: Draws fuel from the tank and pressurizes it.
Fuel Rail and Pipes: Distribute pressurized fuel to injectors.
Injectors: Spray fuel into the intake manifold (port injection) or combustion chamber (direct injection), controlled by the ECU based on sensor inputs like engine load and RPM.
The fuel injection pipe must withstand high pressures (e.g., up to 300 MPa in common-rail systems) and is often made of durable materials like steel to prevent leaks or corrosion