Patent ID: 6622932
Filing Date: 2003-09-23
Classification: F02M

Abstract:
A method of making a fuel injector for injecting high-pressure fuel into a combustion space of an internal combustion engine, comprising:providing an injector housing, longitudinally displaceably disposing a nozzle needle shaft of a nozzle needle in a first guide bore of the injector housing, said nozzle needle including a nozzle needle point which operatively interacts with a valve seat in a forward end of the injector housing, providing a high-pressure duct for operatively supplying the high-pressure fuel to be injected, disposing a nozzle antechamber on a front face side of the first guide bore in front of the nozzle needle shaft, coupling a control space which is operatively acted upon by the high-pressure fuel with the nozzle needle, connecting a control valve to the control space so that the control valve can operatively release pressure from the control space, and arranging a space on a rearward side of the first guide bore so that said space operatively receives fuel flowing over from the nozzle antechamber via the first guide bore or the control space, wherein the space on the rearward side of the first guide bore is a high-pressure space operatively acted upon by the high-pressure fuel.