Electromagnetically actuatable fuel injection valve
AssigneeRobert Bosch GmbH
InventorFerdinand Reiter
Life of this patent
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Abstract
A novel fuel injection valve including an armature which has a through bore, which communicates with a blind bore formed concentrically with a longitudinal valve axis in a ball serving as the valve closing body, and at least one transverse conduit begins at this blind bore and extends to an outer surface of the ball. The fuel reaches the valve seat through the through bore, the blind bore and the at least one transverse conduit. This results in an especially compact embodiment of the fuel injection valve according to the invention. The fuel injection valve is especially well-suited to fuel injection systems of mixture-compressing internal combustion engines with externally supplied ignition.
Claims20
An electromagnetically actuatable fuel injection valve for fuel injection systems of mixture-compressing internal combustion engines with externally supplied ignition, having an inner pole surrounded by a magnet coil, an armature toward the inner pole that is joined to a ball acting as a valve closing body, said valve closing body is slidably supported in a guide bore in a nozzle holder (20) and cooperates with a fixed valve seat (31), in which the armature (41) has a through bore (42), extending concentrically with a longitudinal valve axis (7), and the ball (30) has a blind bore (44) that communicates with the through bore (42), from said blind bore at least one transverse conduit (45) leads to the circumference of the ball.
Dependencies are inferred from the claim text.