Back to results
US 11,293,392 B2Granted
Methods and systems for a fuel injector
AssigneeFord Global Technologies, LLC
InventorsXiaogang Zhang, Jianwen James Yi, Joseph F. Basmaji, Mark Meinhart
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for a fuel injector. In one example, a system comprises an injector spool valve having a fuel outlet shaped to flow fuel to different portions of a nozzle inlet based on an actuation of the injector spool valve, thereby adjusting a fuel injection angle of a fuel injection.
Claims18
A system, comprising:
- a fuel injector mounted to a side wall of a combustion chamber of an engine, the fuel injector positioned to inject directly into the combustion chamber and the fuel injector comprising an injector spool valve shaped to rotate within an injector body of the fuel injector to which a nozzle is physically coupled, a body of the injector spool valve positioned within the injector body of the fuel injector, wherein the nozzle comprises an inlet comprising a first oval shape oriented along a first plane and a nozzle outlet comprising a second oval shape oriented along a second plane perpendicular to the first plane, wherein a longitudinal length of the second oval shape extends in a direction substantially perpendicular to a central axis of the injector spool valve, the body of the injector spool valve comprising a curved rectangular fuel outlet formed therein, the curved rectangular fuel outlet shaped to flow fuel to different portions of a nozzle inlet of the nozzle based on a rotation actuation of the injector spool valve and inject the fuel into the combustion chamber via the nozzle outlet;
- and
- a controller with computer-readable instructions stored on non-transitory memory thereof that when executed enable the controller to:
- actuate the injector spool valve in a first direction during an intake stroke of a piston positioned to oscillate within the combustion chamber;
- and
- actuate the injector spool valve in a second direction, opposite the first direction, during a compression stroke of the piston.
3 more elements
An engine system, comprising:
- a fuel injector mounted to a side wall of a combustion chamber of an engine, the fuel injector having an injector body and an injector spool valve, a body of the injector spool valve positioned within the injector body to actuate within the injector body;
- a nozzle physically coupled to the injector body comprising a nozzle inlet comprising a first oval shape oriented along a first plane and a nozzle outlet comprising a second oval shape oriented along a second plane perpendicular to the first plane, wherein a longitudinal length of the second oval shape extends in a direction substantially perpendicular to a central axis of the injector spool valve;
- a fuel outlet formed into the body of the injector spool valve, the fuel outlet shaped to flow fuel to different portions of the nozzle inlet based on an actuation of the injector spool valve and inject the fuel into the combustion chamber via the nozzle outlet;
- and
- a controller with computer-readable instructions stored on non-transitory memory thereof that when executed enable the controller to:
- actuate the injector spool valve in a first direction during an intake stroke of a piston positioned to oscillate within the combustion chamber;
- and
- actuate the injector spool valve in a second direction, opposite the first direction, during a compression stroke of the piston.
5 more elements
A system comprising:
- a fuel injector comprising:
- an injector body comprising a nozzle physically coupled to the injector body, the nozzle having a nozzle inlet and a nozzle outlet, the nozzle inlet comprising a first oval shape oriented along a first plane and the nozzle outlet comprising a second oval shape oriented along a second plane perpendicular to the first plane, wherein a longitudinal length of the second oval shape extends in a direction substantially perpendicular to a central axis of the injector spool valve;
- and
- an injector spool valve shaped to rotate within an interior volume of the injector body, the body of the injector spool valve comprising a fuel outlet formed therein that is shaped to flow fuel to different portions of the nozzle inlet based on an actuation of the injector spool valve and inject the fuel into a combustion chamber of an engine via the nozzle outlet, the fuel outlet of the injector spool valve having a curved, rectangular shape, wherein the curved rectangular shape comprises curved longitudinal and lateral sides, and where an angle formed between an intersection of the curved longitudinal and lateral sides is greater than or less than 90 degrees, a body of the injector spool valve positioned within the injector body to actuate within the injector body,
- wherein the fuel injector is mounted to a side wall of the combustion chamber of the engine;
- and the system further comprising a controller, wherein the controller has computer-readable instructions stored on non-transitory memory thereof that when executed enable the controller to:
- actuate the injector spool valve in a first direction during an intake stroke of a piston positioned to oscillate within the combustion chamber;
- and
- actuate the injector spool valve in a second direction, opposite the first direction, during a compression stroke of the piston.
6 more elements
Dependencies are inferred from the claim text.