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US 2017/0101973 A1Published application
Injector arrangement for an internal combustion engine
AssigneeFord Global Technologies, LLC
InventorsFrank Wunderlich, Joerg Kemmerling, Leonhard Bartsch, Juergen Karl Stief, Guohui Chen, Werner Willems
Life of this patent
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Abstract
Methods and systems are provided for an injector arrangement for an internal combustion engine. In one example, an injector arrangement may include an actuator positioned between a fuel injector and a cylinder head, with the actuator configured to adjust a position of the fuel injector relative to the cylinder head in order to adjust a protrusion amount of a fuel nozzle tip within a combustion chamber.
Claims20
An injector arrangement for an internal combustion engine, comprising:
- an injector at least partially arranged in a cylinder head;
- a nozzle tip coupled to the injector and arranged at an end of the injector in an axial direction;
- and
- an actuator configured to vary a position of the nozzle tip relative to the cylinder head in the axial direction, with a minimum position and a maximum position of the nozzle tip set by the actuator.
1 more element
A method, comprising:
- responsive to a first condition, adjusting a protrusion amount of a nozzle tip of a fuel injector within a combustion chamber;
- and
- responsive to a second condition, maintaining the protrusion amount of the nozzle tip.
A method, comprising:
- responsive to an engine load exceeding a threshold engine load, adjusting an average fuel injector nozzle protrusion amount within a combustion chamber;
- and
- responsive to the engine load being below the threshold engine load, maintaining the average fuel injector nozzle protrusion amount.
Dependencies are inferred from the claim text.