Lifting apparatus and injection valve
AssigneeContinental Automotive GmbH
InventorsWillibald Schürz, Martin Simmet
Life of this patent
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Abstract
A lifting apparatus comprising a counter bearing (8) provided with a first recess (9), having a conical bearing surface (10), and an actuator unit comprising an actuator (6) whose axial extension is dependent upon an actuating signal. The actuator unit has a shoulder which is formed in an area of the actuator unit which faces away from the output and which has a domed surface (11). The domed surface (11) of the actuator unit rests upon the conical bearing surface (10) of the counter-bearing (8). The injection valve comprises said lifting device and an injector needle which is coupled to the lifting apparatus on the output side thereof and which prevents the flow of fluid through the injector nozzle when closed and otherwise releases it.
Claims7
A lifting apparatus, comprising:
- a counter bearing comprising a first recess having a conical bearing surface, and
- an actuator unit, comprising an actuator, an axial extension of which is dependent on an actuating signal, the actuator unit having a shoulder formed in an area of the actuator unit facing away from the output, the shoulder having a domed surface, and the domed surface of the actuator unit remains pressed upon the conical bearing surface of the counter bearing regardless of any axial extension or contraction of the actuator,
- wherein the lifting apparatus has a guide bush with a continuous recess, in which the actuator unit is guided and in which the actuator unit is arranged in such a way that it can be moved axially and the guide bush is made of sintered bronze with molybdenum sulfide.
Dependencies are inferred from the claim text.