Patent ID: 6684857
Filing Date: 2004-02-03
Classification: F02M

Abstract:
A common rail fuel injection device (10) for internal combustion engines (60), comprisinga housing (12) having an injection end (18), a recess (20) inside the housing (12), at least one axially movable valve element (24), disposed in the recess (20) and cooperating with a valve seat, the valve element having a pressure surface (32) oriented away from the injection end (18), which pressure surface (32) axially delimits a control chamber (34), a device (30, 54, 56) that acts on the valve element (24) counter to the force resultant (33) of the pressure surface (32), and a control valve (38) that is connected to the control chamber (34) via a flow throttle (40), the control valve (38) having at least three connections and at least two switching positions and being connected to a high-pressure fluid inlet (48) and a low-pressure fluid outlet (50) on the one side and being connected to the flow throttle (40) on the other side.