Fuel injection valve for mixture-compressed, foreign-ignited internal-combustion engine, involves pressing needle against seat surface in unexcited condition of magnetic coil, and forming shoulder as stop for reset spring at inner pole

摘要

The valve (1) has an anchor (20) acting together with a magnetic coil (10), and a valve needle (3) staying in effective-connection with the anchor in an axially movable manner. A valve closing body (4) is provided at the needle and forms a sealing seat together with a valve seat surface (6). A fixed inner pole (13) and a reset spring (23) are arranged in an inner longitudinal opening (43) of the inner pole. The needle is pressed against the seat surface in an unexcited condition of the coil. A shoulder (44) is formed as stop for the reset spring at the inner pole.