Fuel injection valve
OwnerMatthias Boee, Guenther Hohl +1inventors
InventorsMatthias Boee, Guenther Hohl, Norbert Keim
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Abstract
A fuel injector (1) for fuel injection systems of internal combustion engines is constructed of a solenoid (8), an armature (12) which is acted upon in a closing direction by a restoring spring (10), and a valve needle (3) which is frictionally engaged with the armature (12) to actuate a valve-closure member (4) which together with a valve-seat surface (6) forms a sealing seat. In or on the armature (12) at least a first fuel channel (37) is provided through which fuel flows, where the cross-section of the first fuel channel (37) is dependent on the axial position of the armature (12).
Claims7
A fuel injector (1) for fuel injection systems of internal combustion engines, comprising a solenoid (8), an armature (12) acted upon in a closing direction by a restoring spring (10), and a valve needle (3) frictionally engaged with the armature (12) to actuate a valve-closure member (4) which, together with a valve-seat surface (6), forms a sealing seat, at least one first fuel channel (37) through which the fuel flows, being provided in or on the armature (12) wherein the cross-section of the first fuel channel (37) is dependent on the axial position of the armature (12).
Dependencies are inferred from the claim text.