Patent ID: 6983900
Filing Date: 2006-01-10
Classification: F02B,F02M,Y02T

Abstract:
1. A fuel injector for a fuel injection system of an internal combustion engine comprising: a valve needle; a valve closing body operationally linked to the valve needle; a valve seat body having a valve seat face situated therein, the valve closing body cooperating with the valve seat face to form a sealing seat; at least one swirl channel upstream from the sealing seat, the at least one swirl channel having a tangential component relative to a longitudinal axis of the fuel injector; and an axial channel situated between the valve closing body and the guide recess of the valve seat body, the axial channel having an axial component relative to the longitudinal axis of the fuel injector, the axial channel being situated between the guide recess and at least one flattened area on one of: i) the valve needle, and ii) on the valve closing body; wherein the at least one swirl channel opens into the axial channel.