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US 6,543,407 B1Granted
Method for dosing fuel with a fuel injection valve
AssigneeRobert Bosch GmbH
InventorsMartin Maier, Guenther Hohl, Norbert Keim
Life of this patent
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AssigneeRobert Bosch GmbH
InventorsMartin Maier, Guenther Hohl, Norbert Keim
Estimating the term…
The invention relates to a process for metering fuel with a fuel injector (1), in particular an injector for fuel injection systems of internal combustion engines. The fuel injector has an actuator (14) and a valve closing body (6) which can be activated by the actuator (14) to produce a valve stroke, and the valve closing body cooperates with a valve seat face (5) to form a sealing seat. The valve closing body (6) and/or valve seat face (5) has at least one swirl element (27; 41) to produce a swirling flow. In order to vary the fuel distribution of fuel injected by the fuel injector (1), the valve stroke triggered by the actuator (14) has a variable opening speed, whereby a transition from an at least approximately swirl-free preliminary flow of the injected fuel to a swirling flow of the injected fuel is produced by varying the opening speed.
A process for metering a fuel with a fuel injector including an actuator, a valve closing body that can be activated with a valve stroke by the actuator and that cooperates with a valve seat face to form a sealing seat, and at least one swirl element for producing a swirling flow and arranged near the valve seat face, comprising the steps of:
Dependencies are inferred from the claim text.