Fuel injection valve for an internal combustion engine
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Accused Products
Abstract
Disclosed is a fuel injection valve for internal combustion engines, having a valve body in which a hollow valve needle is disposed longitudinally displaceably in a bore. The hollow valve needle, on its end toward the combustion chamber, has a conical valve sealing face, which cooperates with a conical valve seat disposed on the end of the bore toward the combustion chamber. A longitudinal bore is embodied in the hollow valve needle, and a valve needle is disposed in it and, with a valve contact face embodied on its end toward the combustion chamber, likewise cooperates with the valve seat. The tip of the hollow valve needle toward the combustion chamber is formed by a chamfer.
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Citations
11 Claims
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1-5. -5. (canceled)
- 6. In a fuel injection valve for internal combustion engines, having a valve body (1), in which a hollow valve needle (5) is disposed longitudinally displaceably in a bore (3) and on its end toward the combustion chamber has a conical valve sealing face (24) that cooperates with a conical valve seat (18), disposed on the end toward the combustion chamber of the bore (3), and having a longitudinal bore (6), embodied in the hollow valve needle (5), in which bore a valve needle (7) is disposed that, with a valve contact face (26) embodied on its end toward the combustion chamber, likewise cooperates with the valve seat (18), the improvement comprising a chamfer (30) formed on the end of the hollow valve needle (5) toward the combustion chamber.
Specification