Unit Injector (UI) is an integrated direct fuel injection system for diesel engines, combining the injector nozzle and the injection pump in a single component. The plunger pump used is usually driven by a shared camshaft. In a Unit injector, the device is usually lubricated and cooled by the fuel itself.
Read more about Unit Injector: History, Design and Technology, Operation Principle, Additional Functions, Further Development and Applications, See Also
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