Back to results
US 2014/0278011 A1Published application
Advanced exhaust gas recirculation fueling control
AssigneeCummins IP, Inc.
InventorsSamuel C. Geckler, Andrea Beck, Anthony Kyle Perfetto
Life of this patent
Estimating the term…
Abstract
For exhaust gas recirculation (EGR) fueling control, at least one donor cylinder of a plurality of cylinders in an engine provides exhaust gas to an air intake for the plurality of cylinders. A fuel variable restriction initially provides fuel concurrent with an intake stroke for the at least one donor cylinder in response to a transition from withholding the fuel to the plurality of cylinders.
Claims20
An apparatus for exhaust gas recirculation control comprising:
- at least one donor cylinder of a plurality of cylinders in an engine, the at least one donor cylinder providing exhaust gas recirculation (EGR) flow to an air intake for the plurality of cylinders;
- a fuel variable restriction initially providing fuel concurrent with an intake stoke for the at least one donor cylinder in response to a transition from withholding the fuel to the plurality of cylinders.
A method for exhaust gas recirculation control comprising:
- providing exhaust gas recirculation (EGR) flow to an air intake for a plurality of cylinders from at least one donor cylinder of the plurality of cylinders in an engine;
- initially providing fuel from a fuel variable restriction concurrent with an intake stoke for the at least one donor cylinder in response to a transition from withholding the fuel to the plurality of cylinder to providing the fuel to the plurality of cylinders.
A system for exhaust gas recirculation control comprising:
- an engine comprising at least one donor cylinder and at least one non-donor cylinder of a plurality of cylinders, the at least one donor cylinder providing Exhaust Gas Recirculation (EGR) to an air intake for the plurality of cylinders;
- a fuel variable restriction initially providing fuel concurrent with an intake stoke for the at least one donor cylinder in response to a transition from withholding the fuel to the plurality of cylinder to providing the fuel to the plurality of cylinders.
Dependencies are inferred from the claim text.