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US 2006/0231647 A1Published application
Fuel injection valve
OwnerGuenther Hohl, Marco Vorbachinventors
Life of this patent
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Abstract
A fuel injector for the direct injection of fuel into the combustion chamber of an internal combustion engine includes a valve needle, which is arranged in a nozzle body, is actuable by an actuator and acted upon by a restoring spring such that a valve closure member, which is in operative connection to the valve needle and faces the combustion chamber, is kept in sealing contact on a valve seat surface in the non-actuated state of the actuator. A surface of the fuel injector has a concave design in a transition region between the nozzle body and the valve-closure member.
Claims9
1 to 7. (canceled)
A fuel injector, comprising:
- a nozzle body;
- and
- a valve needle positioned in the nozzle body, actuable by an actuator and acted upon by a restoring spring to keep a valve-closure member, which is operatively connected to the valve needle and faces a combustion chamber of an internal combustion engine, in sealing contact with a valve-seat surface in a non-actuated state of the actuator;
- wherein a surface of the fuel injector includes a concave shape in a transition region between the nozzle body and the valve-closure member.
1 more element
Dependencies are inferred from the claim text.