Patent ID: 6431148
Filing Date: 2002-08-13
Classification: F02M

Abstract:
A fuel injection device for internal combustion engines, comprising a common high-pressure collection chamber (7), which can be filled with fuel from a high-pressure pump (1) and which communicates via injection lines (9) with a plurality of injection valves (11) whose opening and closing motions are each controlled by an electrically triggered control valve (13) disposed on each injection valve (11), the control valve (13) being embodied as a 3/2-way valve with a control valve member (25), said control valve member (25) has two sealing faces (41, 47) and connects a high-pressure conduit (29) with the injection line (9) or a relief line (33), said high pressure conduit (29) discharges at an injection port of the injection valve (11), the control valve member (25) is actuatable by a pressure prevailing in a work chamber (51) counter to a hydraulic restoring force, and the pressure in the work chamber (51) is controllable by means of a constant inflow and a controlled outflow.