Pump Line Nozzle System

As diesel engines evolved so did the fuel system. This is referred to as a pump, line and nozzle system. It is comprised of a fuel injector, high pressure line and fuel injection pump. The fuel pump is referred to as a bucket type fuel pump due to the type of cam follower in the pump. This basic design is still in use today and each system is optimized for a particular model engine.

pipe fuel system

Modern Diesel Fuel System

This is the fuel system found on current, modern diesel engines. It has been developed to provide optimum engine performance while minimizing fuel consumption and emissions. The pilot injector has been added to the system to improve combustion. As in the bucket type system, the fuel line and injector nozzle have been designed for each engine model and type to optimize performance.

diesel fuel system

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