Magnetic valve for controlling an injection valve of an internal combustion engine
AssigneeRobert Bosch GmbH
InventorsWolfgang Kuehne, Rainer Haeberer, Matthias Horn, Christoph Ulmschneider, Andreas Rettich
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AssigneeRobert Bosch GmbH
InventorsWolfgang Kuehne, Rainer Haeberer, Matthias Horn, Christoph Ulmschneider, Andreas Rettich
Estimating the term…
A solenoid valve is described, its armature having a part that is slidingly displaceable on the foundation bolt and is movable between two stops of the foundation bolt against the tension force of a restoring spring. When the armature strikes the valve seat of the solenoid valve, the slidingly displaceable part moves further under the influence of its inertial mass on the foundation bolt in the closing direction against the tension force of the restoring spring, until it strikes the second stop of the foundation bolt. The resulting transfer of momentum to the foundation bolt reduces impact of the armature on the valve seat and causes the armature to more quickly reach a defined rest position in which the solenoid valve is closed.
A solenoid valve for controlling a fuel injector of an internal combustion engine, the solenoid valve having a housing part (60), an electromagnet (29), a movable armature having a anchor plate (28) and a foundation bolt (27), a control valve element (25), which moves with the armature, is acted upon by a closing spring (31) in the closing direction, and cooperates with a valve seat (24) for opening and closing a fuel outflow channel (17) of a control pressure space (14) of fuel injector (1), and a part (28, 50) able to be displaced in a sliding manner on the foundation bolt (27) under the influence of its inertial mass in the closing direction of the control valve element (25) against the tension force of a restoring spring (35), a first end of the restoring spring (35) being situated in a stationary mount on the housing part (60), and the other end pressing the slidingly displaceable part against a first stop (26, 43) secured on the foundation bolt (27) against the closing direction of the control valve element (25),
Dependencies are inferred from the claim text.