insprutningsfördelare

An insprutningsfördelare, commonly known in English as an injection manifold or fuel rail, is a critical component in modern internal combustion engines, particularly those utilizing gasoline direct injection (GDI) or port fuel injection (PFI) systems. Its primary function is to distribute pressurized fuel from the fuel pump to the individual fuel injectors.

The insprutningsfördelare typically consists of a hollow tube or rail made from materials like aluminum or steel. This rail is connected to the fuel supply line and has ports for each fuel injector. As fuel is pumped at high pressure, it enters the insprutningsfördelare and is maintained at a consistent pressure. This consistent pressure ensures that each injector receives the correct amount of fuel when it is activated by the engine control unit (ECU).

In GDI systems, the insprutningsfördelare operates at significantly higher pressures compared to PFI systems, as fuel is injected directly into the combustion chamber. The design of the insprutningsfördelare is crucial for maintaining precise fuel delivery, which directly impacts engine performance, fuel efficiency, and emissions control. Any leaks or blockages in the insprutningsfördelare can lead to misfires, poor engine running, and increased fuel consumption. It is a vital part of the fuel delivery system, working in conjunction with the fuel pump, fuel filter, and injectors.