KUGELFISCHER Fuel Injection: Description

Fuel fed to the fuel injection pump is kept under pressure and enters high pressure chamber during downward travel of injection plunger. When plunger is at lowest point a valve prevents further entry of fuel. When plunger travels upward, pressure is increased and opens a spring loaded delivery valve. A passage to the injectors is opened and pressure is delivered. The injector opens at an exact opening pressure and fuel is injected into the engine.