Patent ID: 8573186

Claim:
An injector for injecting fuel into combustion chambers of internal combustion engines, in particular a common rail injector, having a valve sleeve of a control valve, which valve sleeve surrounds a guide bolt and is disposed axially movably relative to a valve seat, and a fuel outflow path from a control chamber, which path communicates hydraulically with a pressure conduit serving to deliver fuel, which path can be both closed and opened by means of the control valve, as a result of which pressure in the control chamber is controllable, so that a nozzle needle communicating operatively with the control chamber is adjustable between an opened position that enables fuel flow and a closed position, wherein the valve seat is embodied as a flat seat with a planar valve seat face; and that the valve sleeve, when the control valve is closed, rests with a face-end encompassing edge on the planar valve seat face, and the guide bolt is embodied integrally with a component disposed with the valve seat and the guide bolt extends in the axial direction from a region radially inside the valve seat face on the component.