Methods and systems for an engine
AssigneeGeneral Electric Company
InventorsSachin Shivajirao Kulkarni, Sebastian Walter Freund, Jassin Marcel Fritz, Georgios Bikas, James Henry Yager, Shashi Kiran
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Abstract
Various methods and systems are provided for operating an exhaust gas recirculation engine having a plurality of exhaust gas donor cylinders and a plurality of non-donor cylinders. One example method includes firing each of the engine cylinders in a cylinder firing order, including firing at least one of the non-donor cylinders between every donor cylinder firing of the engine cycle.
Claims20
A method of operating an exhaust gas recirculation engine during an engine cycle, the engine having a plurality of exhaust gas donor cylinders and a plurality of non-donor cylinders, comprising:
- firing each of the plurality of donor cylinders;
- and
- firing at least one of the non-donor cylinders between every donor cylinder firing of the engine cycle.
A method of operating an engine, the engine having a plurality of donor cylinders and a plurality of non-donor cylinders, comprising:
- firing each of the engine cylinders in a cylinder firing order, including firing at least one of the non-donor cylinders between any and every two donor cylinder firings in the cylinder firing order.
A system, comprising:
- an engine having a first cylinder group including a plurality of non-donor cylinders and a second cylinder group including a plurality of donor cylinders, where at least two of the donor cylinders are contiguous on an engine bank;
- a first exhaust manifold coupled to the first cylinder group;
- an exhaust gas recirculation system including a second exhaust manifold coupled between the second cylinder group and an engine intake passage, and an exhaust gas recirculation cooler;
- and
- a controller configured to operate the engine with even donor cylinder firing.
Dependencies are inferred from the claim text.